Potential and Kinetic Energy PowerPoint

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A three part 1500+ PowerPoint slideshow from www.sciencepowerpoint.com becomes the roadmap for an interactive and amazing science experience that includes a bundled homework package, answer keys, unit notes, video links, review games, built-in quizzes and hands-on activities, worksheets, rubrics, games, and much more.
Also included are instruction to create a student version of the unit that is much like the teachers but missing the answer keys, quizzes, PowerPoint review games, hidden box challenges, owl, and surprises meant for the classroom. This is a great resource to distribute to your students and support professionals.
Text for the unit PowerPoint is presented in large print (32 font) and is placed at the top of each slide so it can seen and read from all angles of a classroom. A shade technique, as well as color coded text helps to increase student focus and allows teacher to control the pace of the lesson. Also included is a 12 page assessment / bundled homework that chronologically follows the slideshow for nightly homework and the end of the unit assessment, as well as a 8 page modified assessment. 9 pages of class notes with images are also included for students who require assistance, as well as answer keys to both of the assessments for support professionals, teachers, and homeschool parents. Many video links are provided and a slide within the slideshow cues teacher / parent when the videos are most relevant to play. Video shorts usually range from 2-7 minutes and are included in organized folders. Two PowerPoint Review games are included. Answers to the PowerPoint Review Games are provided in PowerPoint form so students can self-assess. Lastly, several class games such as guess the hidden picture beneath the boxes, and the find the hidden owl somewhere within the slideshow are provided. Difficulty rating of 8 (Ten is most difficult).
Areas of Focus: -Newton's First Law, Inertia, Friction, Four Types of Friction, Negatives and Positives of Friction, Newton's Third Law, Newton's Second Law, Potential Energy, Kinetic Energy, Mechanical Energy, Forms of Potential to Kinetic Energy, Speed, Velocity, Acceleration, Deceleration, Momentum, Work, Machines (Joules), Catapults, Trajectory, Force, Simple Machines, Pulley / (MA Mechanical Advantage), Lever /(MA),Wedge /(MA), Wheel and Axle (MA), Inclined Plane / (MA), Screw /(MA).
This unit aligns with the Next Generation Science Standards and with Common Core Standards for ELA and Literacy for Science and Technical Subjects. See preview for more information
If you have any questions please feel free to contact me. Thanks again and best wishes. Sincerely, Ryan Murphy M.Ed www.sciencepowerpoint@gmail.com
Teaching Duration = 4+ Weeks

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Potential and Kinetic Energy PowerPoint

  1. 1. • Calculate the potential energy of a shot put dropping from a height of 6 meters weighing 5.44 kg with a velocity of 9.8 m/s². – Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy
  2. 2. • RED SLIDE: These are notes that are very important and should be recorded in your science journal. Copyright © 2010 Ryan P. Murphy
  3. 3. -Nice neat notes that are legible and use indentations when appropriate. -Example of indent. -Skip a line between topics -Make visuals clear and well drawn. Please label. Resistance Arm Effort Arm
  4. 4. • RED SLIDE: These are notes that are very important and should be recorded in your science journal. • BLACK SLIDE: Pay attention, follow directions, complete projects as described and answer required questions neatly. Copyright © 2010 Ryan P. Murphy
  5. 5. • Keep an eye out for “The-Owl” and raise your hand as soon as you see him. – He will be hiding somewhere in the slideshow Copyright © 2010 Ryan P. Murphy
  6. 6. • Keep an eye out for “The-Owl” and raise your hand as soon as you see him. – He will be hiding somewhere in the slideshow “Hoot, Hoot” “Good Luck!” Copyright © 2010 Ryan P. Murphy
  7. 7. • http://sciencepowerpoint.com/
  8. 8. • Available worksheet, PE, KE, and ME.
  9. 9. • Available worksheet, PE, KE, and ME.
  10. 10. • Available worksheet, PE, KE, and ME.
  11. 11.  Potential Energy: (PE) The energy stored by an object as a result of its position. Copyright © 2010 Ryan P. Murphy
  12. 12. Potential Enegy (PE) Kinetic Energy (KE)
  13. 13. Potential Enegy (PE) Kinetic Energy (KE)
  14. 14. Potential Enegy (PE) Kinetic Energy (KE)
  15. 15.  Potential Energy is the energy of position. Objects that are elevated have a high potential energy.  Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy
  16. 16.  Potential Energy is the energy of position. Objects that are elevated have a high potential energy.  Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy
  17. 17.  Potential Energy is the energy of position. Objects that are elevated have a high potential energy.  Kinetic Energy is the energy of motion. Copyright © 2010 Ryan P. Murphy
  18. 18. • Available worksheet, PE, KE, and ME.
  19. 19. • Activity! Please write and plan on sharing a sentence about PE and KE about the animation below. Copyright © 2010 Ryan P. Murphy
  20. 20. • Activity! Please write and plan on sharing a sentence about PE and KE about the animation below. Copyright © 2010 Ryan P. Murphy
  21. 21. • The monkey has potential energy because of its position in the tree. When she lets go her potential energy is transferred into the energy of motion (KE). and Copyright © 2010 Ryan P. Murphy
  22. 22. • The monkey has potential energy because of its position in the tree. When he lets go his potential energy is transferred into the energy of motion (KE). Copyright © 2010 Ryan P. Murphy
  23. 23. Copyright © 2010 Ryan P. Murphy
  24. 24. Copyright © 2010 Ryan P. Murphy
  25. 25. Copyright © 2010 Ryan P. Murphy
  26. 26. Copyright © 2010 Ryan P. Murphy
  27. 27. Copyright © 2010 Ryan P. Murphy
  28. 28. • Video Link! (Optional) Energy changes, Potential and Kinetic Energy. – http://www.youtube.com/watch?v=Jnj8mc04r9E
  29. 29. • Activity! PE – KE Skateboarder Simulator • Search Phet Skate Board Demo. • Download program (Free) http://phet.colorado.edu/en/simulation/energy -skate-park Copyright © 2010 Ryan P. Murphy
  30. 30.  PE = mgh Copyright © 2010 Ryan P. Murphy
  31. 31.  PE = mgh  PE = Energy (in Joules) Copyright © 2010 Ryan P. Murphy
  32. 32.  PE = mgh  PE = Energy (in Joules)  m = mass (in kilograms) Copyright © 2010 Ryan P. Murphy
  33. 33.  PE = mgh  PE = Energy (in Joules)  m = mass (in kilograms)  g = gravitational acceleration of the earth (9.8 m/s²) Copyright © 2010 Ryan P. Murphy
  34. 34.  PE = mgh  PE = Energy (in Joules)  m = mass (in kilograms)  g = gravitational acceleration of the earth (9.8 m/s²)  h = height above Earth's surface (in meters) Copyright © 2010 Ryan P. Murphy
  35. 35.  PE = mgh  PE = Energy (in Joules)  m = mass (in kilograms)  g = gravitational acceleration of the earth (9.8 m/s²)  h = height above Earth's surface (in meters) Learn more about Potential Energy at… http://www.physicsclassroom.com/clas s/energy/u5l1b.cfm Copyright © 2010 Ryan P. Murphy
  36. 36. • Available worksheet, PE, KE, and ME.
  37. 37. • Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / sec². – Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy
  38. 38. • Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / s². – Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy
  39. 39. • Calculate the potential energy for a 2 kg basketball dropping from a height of 3.5 meters with a velocity of 9.8 m / s². – Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy
  40. 40. • PE = mgh m = 2 kg g = 9.8 m/sec2 h = 3.5 m Copyright © 2010 Ryan P. Murphy
  41. 41. • PE = mgh m = 2 kg g = 9.8 m/sec2 h = 3.5 m Copyright © 2010 Ryan P. Murphy
  42. 42. • PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m Copyright © 2010 Ryan P. Murphy
  43. 43. • PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m Copyright © 2010 Ryan P. Murphy
  44. 44. • PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m • PE = (2 kg ) (9.8 m/s²) (3.5 m) Copyright © 2010 Ryan P. Murphy
  45. 45. • PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m • PE = (2 kg ) (9.8 m/s²) (3.5 m) • PE = Copyright © 2010 Ryan P. Murphy
  46. 46. • PE = mgh m = 2 kg g = 9.8 m/s² h = 3.5 m • PE = (2 kg ) (9.8 m/s²) (3.5 m) • PE = 68.6 Joules Copyright © 2010 Ryan P. Murphy
  47. 47. • Available worksheet, PE, KE, and ME.
  48. 48. • Calculate the potential energy of a shot put dropping from a height of 6 meters weighing 5.44 kg with a velocity of 9.8 m/s². – Find the PE in Joules? Copyright © 2010 Ryan P. Murphy
  49. 49. • Calculate the potential energy of a shot put dropping from a height of 6 meters weighing 5.44 kg with a velocity of 9.8 m/s². – Find the PE in Joules? Copyright © 2010 Ryan P. Murphy
  50. 50. • Calculate the potential energy of a shot put dropping from a height of 6 meters weighing 5.44 kg with a velocity of 9.8 m/s². – Find the PE in Joules? PE=mgh Copyright © 2010 Ryan P. Murphy
  51. 51. • PE = mgh m = 5.44 kg g = 9.8 m/s² h=6m Copyright © 2010 Ryan P. Murphy
  52. 52. • PE = mgh m = 5.44 kg g = 9.8 m/s² h=6m PE = (5.44kg) (9.8m/s²) (6m) PE = Copyright © 2010 Ryan P. Murphy
  53. 53. • Answer: PE = 319.87 Joules. Copyright © 2010 Ryan P. Murphy
  54. 54. • Answer: PE = 319.87 Joules. • Copyright © 2010 Ryan P. Murphy
  55. 55. • Activity! Bungee Jumping!
  56. 56. • Activity! But we will use an egg. Egg
  57. 57. • Activity! and It’s not a real egg, it’s plastic.
  58. 58. • Activity! …and instead of candy...
  59. 59. • Activity! …and instead of candy...it’s washers
  60. 60. Demonstration of bungee jump gone wrong by teacher. This is not what you want to happen to your plastic egg.
  61. 61. Paperclip to Hook on ceiling
  62. 62. Paperclip to Hook on ceiling String (You create length)
  63. 63. Paperclip to Hook on ceiling String (You create length) Elastic
  64. 64. Paperclip to Hook on ceiling String (You create length) 2 Washers Elastic
  65. 65. Paperclip to Hook on ceiling String (You create length) 2 Washers Elastic Egg
  66. 66. Paperclip to Hook on ceiling String (You create length) 2 Washers Elastic Egg
  67. 67. Paperclip to Hook on ceiling String (You create length) 2 Washers Elastic Egg
  68. 68. • Bungee Jumping Egg Available Worksheet
  69. 69. Demonstration of bungee jump gone wrong by teacher. This is not what you want to happen to your plastic egg.
  70. 70. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of unstretched elastic band 80 cm / 2’8” – Spring constant (How much the band stretches) – Mass of the egg and washers – Length of rope. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  71. 71. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of unstretched elastic band 80 cm / 2’8” – Spring constant (How much the band stretches) – Mass of the egg and washers – Length of rope. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  72. 72. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches) – Mass of the egg and washers – Length of rope. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  73. 73. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers – Length of rope. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  74. 74. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers Constant: Changeless / unvarying – Length of rope. in of jump – Height nature (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  75. 75. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers. – Length of rope. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  76. 76. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers. – Length of rope.  Mass: Amount of matter in an – Height of jump (h) minus the separation distance (d) between the egg and ground object (Weight on Earth) including the stretched elastic.
  77. 77. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers. – Length of string that you determine. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  78. 78. • The five values that should be considered before determining the fate of the egg. – Height of the jump 2.75 m / 9 ft. – Length of elastic band 80 cm / 2’8” ish. – Spring constant (How much the band stretches). – Mass of the egg and washers. – Length of string that you determine. – Height of jump (h) minus the separation distance (d) between the egg and ground including the stretched elastic.
  79. 79. • Activity! Instructions
  80. 80. • Activity! Instructions • Goal: For the egg to fall from the ceiling and come within 10 cm of the floor without crashing.
  81. 81. • Activity! Instructions • Goal: For the egg to fall from the ceiling and come within 10 cm of the floor without crashing. • Everyone has the same amount of bungee material (Elastic / Rubber Bands)
  82. 82. • Activity! Instructions • Goal: For the egg to fall from the ceiling and come within 10 cm of the floor without crashing. • Everyone has the same amount of bungee material (Elastic / Rubber Bands) • You must measure the correct length of rope to land within the 10 cm range.
  83. 83. • Activity! Instructions • Goal: For the egg to fall from the ceiling and come within 10 cm of the floor without crashing. • Everyone has the same amount of bungee material (Elastic / Rubber Bands) • You must measure the correct length of rope to land within the 10 cm range. • You are not allowed any test jumps. You must determine rope length using the provided information.
  84. 84. • Activity! Instructions • Goal: For the egg to fall from the ceiling and come within 10 cm of the floor without crashing. • Everyone has the same amount of bungee material (Elastic / Rubber Bands) • You must measure the correct length of rope to land within the 10 cm range. • You are not allowed any test jumps. You must determine rope length using the provided information. • You may begin when given the materials and use the information on the next slide.
  85. 85. • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ?
  86. 86. • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh
  87. 87. • • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh PE is in Joules
  88. 88. • • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh PE is in Joules
  89. 89. • • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  90. 90. • • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/s²) – Height above surface (Meters)
  91. 91. • • • • • • • • • • Activity! Information Height 2.75 m / 9ft Paperclip 5 cm? Hook 5 cm? Elastic not stretched 80 cm / 2’8” ish. Mass of egg and 2 washers = 32grams 32g x .001 =.032kg Stretched Elastic = ? Potential Energy = PE = mgh PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/s²) – Height above surface (Meters)
  92. 92. • Follow up questions. – What did you learn in this activity? • Please draw a quick sketch of a bungee jumping egg with a short description of something you learned next to it. – If your egg cracked your picture must show this.
  93. 93. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy:
  94. 94. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  95. 95. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  96. 96. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  97. 97. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  98. 98. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  99. 99. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  100. 100. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another.
  101. 101. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves,
  102. 102. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound,
  103. 103. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules,
  104. 104. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules, cracks,
  105. 105. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules, cracks, the washers move across the floor,
  106. 106. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules, cracks, the washers move across the floor, the string and elastic heat up,
  107. 107. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules, cracks, the washers move across the floor, the string and elastic heat up, stretch,
  108. 108. • Activity! Bungee Jumping Egg Information – Law Conservation of Energy: Energy cannot be created or destroyed, only converted between one form and another. • The egg moves, makes a sound, must move air molecules, cracks, the washers move across the floor, the string and elastic heat up, stretch, others?
  109. 109. • Activity! Bungee Jumping Egg Information
  110. 110. • Activity! Bungee Jumping Egg Information – During a bungee jump, the stored potential energy of the egg (PE = mgh) is converted into kinetic energy during the fall (KE = ½ MV²).
  111. 111. • Activity! Bungee Jumping Egg Information – During a bungee jump, the stored potential energy of the egg (PE = mgh) is converted into kinetic energy during the fall (KE = ½ MV²). • The kinetic energy is converted back to potential energy as the bungee cord stretches.
  112. 112. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  113. 113. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  114. 114. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  115. 115. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  116. 116. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/sec2) – Height above surface (Meters)
  117. 117. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – – – – Mass of the Object (Kilograms) g = gravitational acceleration of the earth (9.8 m/s²) ) Height above surface (Meters)
  118. 118. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh • PE is in Joules – Mass of the Object (Kilograms) – g = gravitational acceleration of the earth (9.8 m/s²) – Height above surface (Meters)
  119. 119. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters
  120. 120. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m
  121. 121. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m .032 kg
  122. 122. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g .032 kg
  123. 123. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g .032 kg 9.8 m/s²
  124. 124. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s²
  125. 125. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s² 2.75 M
  126. 126. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s² 2.75 M
  127. 127. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s² 2.75 M PE= .032 kg 9.8m/s² 2.75 M
  128. 128. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s² 2.75 M PE= .032 kg 9.8m/s² 2.75 M PE =
  129. 129. • Activity! Bungee Jumping Egg Information – The Potential Energy of the Egg • Potential Energy = PE = mgh – (m)ass of the egg and washers + Elastic + String = .032kg – (g) = (9.8 m/s²) – (h) Height = 2.75 Meters m g h .032 kg 9.8 m/s² 2.75 M PE= .032 kg 9.8m/s² 2.75 M PE = .86 Joules
  130. 130. • Activity! Bungee Jumping Egg Information – Hooke’s Law:
  131. 131. • Activity! Bungee Jumping Egg Information – Hooke’s Law: The force produced by the stretched spring is directly proportional to the distance the spring is stretched compared to its unstretched state F = -kx
  132. 132. • Video Link! (Optional) • Potential and Kinetic Energy • Be a proactive learner and record problems in your journal. – http://www.youtube.com/watch?v=BSWl_Zj-CZs
  133. 133. • Available worksheet, PE, KE, and ME.
  134. 134. • Calculate the potential energy for a 2500 kg satellite orbiting at an altitude of 50,000 meters above the surface of the earth if it is traveling with a velocity of 9.8 m/s². Find PE in Joules? – Assume we are using the earth gravity constant.
  135. 135. • Calculate the potential energy for a 2500 kg satellite orbiting at an altitude of 50,000 meters above the surface of the earth if it is traveling with a velocity of 9.8 m/s². Find PE in Joules? – Assume we are using the earth gravity constant.
  136. 136. • Calculate the potential energy for a 2500 kg satellite orbiting at an altitude of 50,000 meters above the surface of the earth if it is traveling with a velocity of 9.8 m/s². Find PE in Joules? PE=mgh – Assume we are using the earth gravity constant.
  137. 137. • Calculate the potential energy for a 2500 kg satellite orbiting at an altitude of 50,000 meters above the surface of the earth if it is traveling with a velocity of 9.8 m/s². Find PE in Joules? PE=mgh – Assume we are using the earth gravity constant.
  138. 138. • PE = mgh m = 2500 kg g = 9.8 m/s² h = 50,000m Copyright © 2010 Ryan P. Murphy
  139. 139. • PE = mgh m = 2500 kg g = 9.8 m/s² h = 50,000m Copyright © 2010 Ryan P. Murphy
  140. 140. • PE = mgh m = 2500 kg g = 9.8 m/s² h = 50,000m • PE = (2500 kg) (9.8 m/s²) (50,000 m) Copyright © 2010 Ryan P. Murphy
  141. 141. • PE = mgh m = 2500 kg g = 9.8 m/s² h = 50,000m • PE = (2500 kg) (9.8 m/s²) (50,000 m) • PE = ? Copyright © 2010 Ryan P. Murphy
  142. 142. • Or PE = 1,225,000,000 Joules Copyright © 2010 Ryan P. Murphy
  143. 143. • Or PE = 1,225,000,000 Joules • Can you put it into scientific notation? Copyright © 2010 Ryan P. Murphy
  144. 144. • Or PE = 1,225,000,000 Joules 9 • Can you put it into scientific notation? Copyright © 2010 Ryan P. Murphy
  145. 145. • Or PE = 1,225,000,000 Joules 9 • Can you put it into scientific notation? • PE = 1.225 x 109 Joules Copyright © 2010 Ryan P. Murphy
  146. 146. • Scientific Notation PowerPoint and worksheet provided in the Activities Folder. Copyright © 2010 Ryan P. Murphy
  147. 147. • Gravity: The force of attraction between all masses in the universe. Copyright © 2010 Ryan P. Murphy
  148. 148. • Gravity: The force of attraction between all masses in the universe. Copyright © 2010 Ryan P. Murphy
  149. 149. • Gravity: The force of attraction between all masses in the universe. Copyright © 2010 Ryan P. Murphy
  150. 150. • Gravity: The force of attraction between all masses in the universe. Copyright © 2010 Ryan P. Murphy
  151. 151. • Gravity: The force of attraction between all masses in the universe. Copyright © 2010 Ryan P. Murphy
  152. 152. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  153. 153. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  154. 154. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  155. 155. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  156. 156. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  157. 157. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  158. 158. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  159. 159. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  160. 160. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  161. 161. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  162. 162. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  163. 163. • Law of Gravity F = G M m / r^2 – Gravity is an attractive force between two bodies, which depends only on the mass of the two bodies (M and m) and inversely on the square of the separation between the two bodies. – (If you double the mass of the earth, its gravitational force will become twice as big; if you get 3 times further away from the earth, its gravitational force will be 3 times weaker.) If interested in some difficult mathematics visit… http://easycalculation.com/physics/classical-physics/learn-newtons-law.php
  164. 164. • Which one is the relative gravity of Jupiter? – Earth's force of gravity is measured at 1.00
  165. 165. • Which one is the relative gravity of Jupiter? – Earth's force of gravity is measured at 1.00
  166. 166. • Which one is the relative gravity of Jupiter? – Earth's force of gravity is measured at 1.00
  167. 167. • Question. – If the sun were to be shrunk into the size of a basketball without losing any mass, would it have more, less, or the same gravitational effects it has now?
  168. 168. • Question. Answer… – If the sun were to be shrunk into the size of a basketball without losing any mass, would it have more, less, or the same gravitational effects it has now?
  169. 169. • Question. Answer… – If the sun were to be shrunk into the size of a basketball without losing any mass, would it have more, less, or the same gravitational effects it has now?
  170. 170. • Question. Answer… – If the sun were to be shrunk into the size of a basketball without losing any mass, would it have more, less, or the same gravitational effects it has now?
  171. 171. • Question. Answer… – If the sun were to be shrunk into the size of a basketball without losing any mass, would it have more, less, or the same gravitational effects it has now? Learn more (Advanced) at… http://www2.astro.psu.edu/users/caryl/a10/lec4_2d.html
  172. 172. • In rocketry we can use gravity to speed up an object and change directions
  173. 173. • In rocketry we can use gravity to speed up an object and change directions
  174. 174. • Gravity of the earth keeps the moon from going into deep space,
  175. 175. • Gravity of the earth keeps the moon from going into deep space, gravity of the sun keeps the earth in orbit,
  176. 176. • Gravity of the earth keeps the moon from going into deep space, gravity of the sun keeps the earth in orbit, and gravity of our galaxy keeps sun from heading into deep space.
  177. 177. • The Apollo missions used the gravitational pull of the earth and moon to slingshot / gain velocity.
  178. 178. • Video Link! Gravity in a minute – http://www.youtube.com/watch?v=Jk5E-CrE1zg
  179. 179. • Black holes, space-time, Einstein, and relativity optional PowerPoint in activities folder.
  180. 180.  Kinetic energy Copyright © 2010 Ryan P. Murphy
  181. 181.  Kinetic energy  The energy that matter has because of its motion and mass. Copyright © 2010 Ryan P. Murphy
  182. 182.  Kinetic energy  The energy that matter has because of its motion and mass.  Where m = mass of object (kg). Copyright © 2010 Ryan P. Murphy
  183. 183.  Kinetic energy  The energy that matter has because of its motion and mass.  Where m = mass of object (kg).  v = speed of object. Copyright © 2010 Ryan P. Murphy
  184. 184.  Kinetic energy  The energy that matter has because of its motion and mass.  Where m = mass of object (kg).  v = speed of object.  KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy
  185. 185. • Kinetic energy – The energy that matter has because of its This equation shows that the kinetic energy of motion and mass. an object is proportional to the square of its Where m = a twofold increase in speed, – speed. For mass of object (kg). the kinetic energy will increase by a factor of – v = speed of object. four. – KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy
  186. 186. • Kinetic energy – The energy that matter has because of its This equation shows that the kinetic energy of motion and mass. an object is proportional to the square of its Where m = a twofold increase in velocity, – speed. For mass of object (kg). the kinetic energy will increase by a factor of – v = speed of object. four. – KE = Energy in Joules. Copyright © 2010 Ryan P. Murphy
  187. 187.  Kinetic energy - Copyright © 2010 Ryan P. Murphy
  188. 188. Copyright © 2010 Ryan P. Murphy
  189. 189. Kinetic Energy Copyright © 2010 Ryan P. Murphy
  190. 190. Kinetic Energy Copyright © 2010 Ryan P. Murphy
  191. 191.  Translational Energy: Motion from one location to another.
  192. 192.  Vibrational energy (sound)
  193. 193.  Electrical energy: Flow of electrons. Copyright © 2010 Ryan P. Murphy
  194. 194.  Rotational energy.
  195. 195. • Kinetic energy is a scalar quantity; as it does not have a direction.
  196. 196. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  197. 197. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  198. 198. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  199. 199. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  200. 200. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  201. 201. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Magnitude is just the measurement without direction
  202. 202. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Scalars and Vectors. Learn more at… http://www.grc. nasa.gov/WWW /k12/airplane/vect ors.html
  203. 203. • How you can remember the difference between the two…
  204. 204. • How you can remember the difference between the two… Scales are still / Don’t have direction
  205. 205. • How you can remember the difference between the two… Scales are still / Don’t have direction Just a cool fighter pilot name, Jet Pilots travel with direction.
  206. 206. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  207. 207. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  208. 208. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  209. 209. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  210. 210. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  211. 211. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  212. 212. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  213. 213. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  214. 214. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  215. 215. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  216. 216. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  217. 217. • F=ma – (Which is are scalars and which are vectors?)
  218. 218. • F=ma – (Which is are scalars and which are vectors?)
  219. 219. • F=ma – (Which is are scalars and which are vectors?) Force has magnitude and direction
  220. 220. • F=ma – (Which is are scalars and which are vectors?) Force has magnitude and direction
  221. 221. • F=ma – (Which is are scalars and which are vectors?) Force has magnitude and direction Mass: Magnitude Only
  222. 222. • F=ma – (Which is are scalars and which are vectors?) Force has magnitude and direction Mass: Magnitude Only
  223. 223. • F=ma – (Which is are scalars and which are vectors?) Acceleration has magnitude and direction Force has magnitude and direction Mass: Magnitude Only
  224. 224. • Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy
  225. 225. • Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy
  226. 226. • Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy
  227. 227. • Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy
  228. 228. • Amount of KE depends on both the objects mass and its velocity / (speed). Copyright © 2010 Ryan P. Murphy
  229. 229. • Available worksheet, PE, KE, and ME.
  230. 230. • What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? • m = 10 kg • v = 50 m/s Copyright © 2010 Ryan P. Murphy
  231. 231. • What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? • m = 10 kg • v = 50 m/s Copyright © 2010 Ryan P. Murphy
  232. 232. • What is the kinetic energy of a 10 kilogram cannon ball traveling at 50 meters per second? • m = 10 kg • v = 50 m/s Copyright © 2010 Ryan P. Murphy
  233. 233. • Don’t forget your order of operations. Copyright © 2010 Ryan P. Murphy
  234. 234. • Don’t forget your order of operations. • PEMDAS Copyright © 2010 Ryan P. Murphy
  235. 235. • Don’t forget your order of operations. • PEMDAS • For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy
  236. 236. • Don’t forget your order of operations. • PEMDAS • For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy
  237. 237. • Don’t forget your order of operations. • PEMDAS • For KE, you must do exponents (E) before multiplying (M). Copyright © 2010 Ryan P. Murphy
  238. 238. • KE = 0.5 times 10 kg times (50) ² Joules Copyright © 2010 Ryan P. Murphy
  239. 239. • KE = 0.5 times 10 kg times (50) ² Joules • KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy
  240. 240. • KE = 0.5 times 10 kg times (50) ² Joules • KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy
  241. 241. • KE = 0.5 times 10 kg times (50) ² Joules • KE = 0.5 times 10 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy
  242. 242. • KE = 0.5 times 10 kg times (50) ² Joules • KE = 0.5 times 10 kg times 2,500 Joules • KE = 5 kg times 2,500 Joules Copyright © 2010 Ryan P. Murphy
  243. 243. • • • • KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = Copyright © 2010 Ryan P. Murphy
  244. 244. • • • • KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = 12,500 Joules Copyright © 2010 Ryan P. Murphy
  245. 245. • • • • KE = 0.5 times 10 kg times (50) ² Joules KE = 0.5 times 10 kg times 2,500 Joules KE = 5 kg times 2,500 Joules KE = 12,500 Joules Copyright © 2010 Ryan P. Murphy
  246. 246. • Available worksheet, PE, KE, and ME.
  247. 247. • What is the kinetic energy of a .142 kilogram baseball traveling at 45 meters per second? • m = .142 kg • v = 45 m/s Copyright © 2010 Ryan P. Murphy
  248. 248. • What is the kinetic energy of a .142 kilogram baseball traveling at 45 meters per second? • m = .142 kg • v = 45 m/s Copyright © 2010 Ryan P. Murphy
  249. 249. • KE = 0.5 times .142 kg times (45) ² Joules Copyright © 2010 Ryan P. Murphy
  250. 250. • KE = 0.5 times .142 kg times (45) ² Joules • KE = 0.5 times .142 kg times 2,025 Joules PEMDAS Copyright © 2010 Ryan P. Murphy
  251. 251. • KE = 0.5 times .142 kg times (45) ² Joules • KE = 0.5 times .142 kg times 2,025 Joules Copyright © 2010 Ryan P. Murphy
  252. 252. • KE = 0.5 times .142 kg times (45) ² Joules • KE = 0.5 times .142 kg times 2,025 Joules • KE = .071 kg times 2,025 Joules Copyright © 2010 Ryan P. Murphy
  253. 253. • • • • KE = 0.5 times .142 kg times (45) ² Joules KE = 0.5 times .142 kg times 2,025 Joules KE = .071 kg times 2,025 Joules KE = Copyright © 2010 Ryan P. Murphy
  254. 254. • • • • KE = 0.5 times .142 kg times (45) ² Joules KE = 0.5 times .142 kg times 2,025 Joules KE = .071 kg times 2,025 Joules KE = 143.775 Joules Copyright © 2010 Ryan P. Murphy
  255. 255. • • • • KE = 0.5 times .142 kg times (45) ² Joules KE = 0.5 times .142 kg times 2,025 Joules KE = .071 kg times 2,025 Joules KE = 143.775 Joules Copyright © 2010 Ryan P. Murphy
  256. 256. • • • • KE = 0.5 times .142 kg times (45) ² Joules KE = 0.5 times .142 kg times 2,025 Joules KE = .071 kg times 2,025 Joules KE = 143.775 Joules Kinetic Energy, Learn more at… http://www.physicsclassroom .com/class/energy/u5l1c.cfm Copyright © 2010 Ryan P. Murphy
  257. 257.  Mechanical Energy (ME): Energy due to position and motion. - Copyright © 2010 Ryan P. Murphy
  258. 258.  Mechanical Energy (ME): Energy due to position and motion.  Sum of potential and kinetic energies, includes heat and friction. PE + KE = ME Copyright © 2010 Ryan P. Murphy
  259. 259. • Available worksheet, PE, KE, and ME.
  260. 260. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy?
  261. 261. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy?
  262. 262. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy?
  263. 263. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy? ME = PE + KE
  264. 264. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy? ME = PE + KE ME = 10,500 J + 6,500 J
  265. 265. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy? ME = PE + KE ME = 10,500 J + 6,500 J ME =
  266. 266. • A ski jumper moving down the hill had a Potential Energy of 10,500 Joules, and a Kinetic Energy of 6,500 Joules. – What is her Mechanical Energy? ME = PE + KE ME = 10,500 J + 6,500 J ME = 17,000 Joules.
  267. 267. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  268. 268. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  269. 269. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  270. 270. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V2 – (Assume all energy in the vault was transformed into potential energy to make this question easier.) “The homework isn’t color coded.”
  271. 271. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  272. 272. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.) KE KE KE KE = ½ m * V² = = =
  273. 273. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.) KE KE KE KE = ½ m * V² = .5* 77 kg * 8.3 m/s = =
  274. 274. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.) KE KE KE KE = ½ m * V² = .5* 77 kg * 8.3 m/s = .5* 77 kg * 68.89 m/s =
  275. 275. • Please calculate the potential energy of a pole-vaulter at the top of their vault. The run into the vault was 8.3 m/s and they weighed 77 kilograms. KE= ½ m * V² – (Assume all energy in the vault was transformed into potential energy to make this question easier.) KE KE KE KE = = = = ½ m * V² .5* 77 kg * 8.3 m/s .5* 77 kg * 68.89 m/s 2652.2 Joules
  276. 276. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  277. 277. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  278. 278. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  279. 279. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  280. 280. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  281. 281. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  282. 282. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.)
  283. 283. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) “Organize your work please.”
  284. 284. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh
  285. 285. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m
  286. 286. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m PE = 2263.8 Joules
  287. 287. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m PE = 2263.8 Joules
  288. 288. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m PE = 2263.8 Joules KE = 2652.2 Joules
  289. 289. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m PE = 2263.8 Joules KE = 2652.2 Joules -388.4 Joules for heat, sound, and other losses.
  290. 290. • Please calculate the potential energy of a pole-vaulter at the top of their vault. Their height was 3 meters and they weighed 77 kilograms. PE= mgh (9.8 m/s²) – (Assume all energy in the vault was transformed into potential energy to make this question easier.) PE= mgh PE = 77 kg* 9.8 m/s² * 3 m PE = 2263.8 Joules KE = 2652.2 Joules -388.4 Joules for heat, sound, and other losses.
  291. 291. • Activity! Please make a roller coaster on a page in your science journal. – Color Key Areas with high potential energy and kinetic energy. Copyright © 2010 Ryan P. Murphy
  292. 292. • Activity! Please make a roller coaster on a page in your science journal. – Color Key Areas with high potential energy and kinetic energy. Copyright © 2010 Ryan P. Murphy
  293. 293. • Activity! Please make a roller coaster on a page in your science journal. – Color Key Areas with high potential energy and kinetic energy. Copyright © 2010 Ryan P. Murphy
  294. 294.  Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy
  295. 295.  Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia If I were to throw up right now which way would it go? Copyright © 2010 Ryan P. Murphy
  296. 296.  Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy
  297. 297.  Centrifugal Force: (Does not exist) The Force that makes us feel that a force is acting outward on a body moving around a center, arising from the body's inertia Copyright © 2010 Ryan P. Murphy
  298. 298. Important Note: Centrifugal force does not actually exist.
  299. 299. Important Note: Centrifugal force does not actually exist. We are in a non-inertial coordinate system. Nevertheless, it appears quite real to the object being rotated. Centrifugal force is like Newton's "Every action has an equal an opposite reaction.” When you step on the gas in your car you hit the seat behind you as if you are going backwards but you are really going forwards. As soon as you stop pulling on the merry go round (applying an inward, not outward force) you will fly off in a straight line. No more force inward, no more going in a circle.
  300. 300. Important Note: Centrifugal force does not actually exist. We are in a non-inertial coordinate system. Nevertheless, it appears quite real to the object being rotated. Centrifugal force is like Newton's "Every action has an equal an opposite reaction.” When you step on the gas in your car you hit the seat behind you as if you are going backwards but you are really going forwards. As soon as you stop pulling on the merry go round (applying an inward, not outward force) you will fly off in a straight line. No more force inward, no more going in a circle. Learn more at… http://knowledgedrift.wordpress.com/strange-oddities-ofhistory/the-myth-of-centrifugal-force/
  301. 301. • Video! “Centrifugal Force” misplayed with some kids who didn’t take this class. – http://www.youtube.com/watch?v=XWCBk9Vl-rc Note: All yellow print doesn’t actually exist.
  302. 302.  Centripetal Force: Force that acts on a body moving in a circular path and is directed toward the center around which the body is moving. Copyright © 2010 Ryan P. Murphy
  303. 303. • Teacher Demonstration – I will turn a pail of water upside down over my head. Copyright © 2010 Ryan P. Murphy
  304. 304.  Why didn’t the water fall out of the pail as I was spinning it around?
  305. 305. “I feel centrifugal force.”
  306. 306. • Gravity from the mass of the sun keeps the earth from heading out into space. Copyright © 2010 Ryan P. Murphy
  307. 307. • Gravity from the mass of the sun keeps the earth from heading out into space. Copyright © 2010 Ryan P. Murphy
  308. 308. • Gravity from the mass of the sun keeps the earth from heading out into space. Copyright © 2010 Ryan P. Murphy
  309. 309. • The World of the Hammer Throw. Centripetal Force – http://www.youtube.com/watch?v=tB00eDfTNhs
  310. 310. • The World of the Hammer Throw. Centripetal Force – http://www.youtube.com/watch?v=tB00eDfTNhs As soon as the thrower stopped pulling on the hammer (applying an inward, not outward force) it flew off in a straight line. No more force inward, no more going in a circle. Just a straight line out. Centrifugal force does not exist. Centripetal Force: Learn more at… http://regentsprep.org/regents/physics/phys06/b centrif/default.htm
  311. 311. • Activity (Optional) Funky foam tube roller coaster. – Use ½ inch foam pipe insulation cut in half, duct tape to connect the tubes and anchor, cup to catch at end, and marbles.
  312. 312. • Create a one page visual of a roller coaster with drawings. – Name your coaster. – Create a not to scale visual that will be achievable with the materials provided by teacher. – Class will vote to choose a model and build the coaster. – Calculate the PE and KE. – Find the mass of the marble. – Measure the height of the coaster. – Calculate the velocity. • Distance / meters divided by seconds and direction
  313. 313. • Create a one page visual of a roller coaster with drawings. – Name your coaster. – Create a not to scale visual that will be achievable with the materials provided by teacher. – Class will vote to choose a model and then build the coaster. – Calculate the PE and KE. – Find the mass of the marble. – Measure the height of the coaster. – Calculate the velocity. • Distance / meters divided by seconds and direction
  314. 314. • Academic Link! (Optional) PE and KE – http://www.youtube.com/watch?v=BSWl_Zj-CZs
  315. 315. • F=MA, PE, KE and more ramp activity. – Available Sheet
  316. 316. • Activity! Kinetic and Potential Energy + Newton’s Laws F=MA. Copyright © 2010 Ryan P. Murphy
  317. 317. • Activity! Kinetic and Potential Energy + Newton’s Laws F=MA. Copyright © 2010 Ryan P. Murphy
  318. 318. • Please create this spreadsheet in your journal. • Truck (D Battery) Car (AA Batter) – Cup (Parked Car) Ramp Height Parked car One Washer Parked Car Parked Car Two Washer Three Washers Lowest AA –Car_________ (Distance of Parked Car) D – Truck________ Middle AA –Car___________ AA –Car_________ (Distance of Parked Car) D – Truck__________ D – Truck________ Highest AA –Car___________ AA –Car_________ (Distance of Parked Car) D – Truck__________ D – Truck________ Make Prediction after data collection, AA –Car_________ D – Truck________ Copyright © 2010 Ryan P. Murphy
  319. 319. Set-up of the activity. The height can change by placing the rectangular block on its various sides. Ramp start line Height D 5cm gap Plastic Cup Washers 1-3 AA Meter Stick to measure distance cup “parked car” travels after hit. Copyright © 2010 Ryan P. Murphy
  320. 320. • Conduct trials with small car (AA Battery) with one and three washers and the three different heights, measuring the distance the parked car traveled after hit in cm. • Repeat with Truck / D Battery. – Do not do medium height as we will predict later. Copyright © 2010 Ryan P. Murphy
  321. 321. • F=MA, PE, KE and more ramp activity. – Available Sheet
  322. 322. • F=MA, PE, KE and more ramp activity. – Available Sheet
  323. 323. • Based on your data, make a prediction for the distance the parked car should travel for both the small car (AA) and truck (D) on your spreadsheets for medium height with two washers. Copyright © 2010 Ryan P. Murphy
  324. 324. • Based on your data, make a prediction for the distance the parked car should travel for both the small car (AA) and truck (D) on your spreadsheets for medium height with two washers. – Run some trials afterward to see if your prediction is correct. Copyright © 2010 Ryan P. Murphy
  325. 325. Increase in Friction / Mass to move.
  326. 326. Increase in Friction / Mass to move.
  327. 327. • F=MA, PE, KE and more ramp activity. – Available Sheet
  328. 328. • F=MA, PE, KE and more ramp activity. – Available Sheet
  329. 329. • Questions to answer in journal (graded) – Which Battery caused the parked car to move further? Use your data – Mass = Weight of battery – Acceleration - – Explain your answer using F=MA. Copyright © 2010 Ryan P. Murphy
  330. 330. • How did the height of the ramp affect the movement of the parked car? – Use potential energy and kinetic energy in your response. – Measure the height of the ramp, mass of the batteries, and determine the Potential Energy. PE=mgh Copyright © 2010 Ryan P. Murphy
  331. 331. • How did the resistance to force (washers) affect the movement of the parked car? Copyright © 2010 Ryan P. Murphy
  332. 332. • What should you be aware of as many of you will start driving shortly? F=ma Copyright © 2010 Ryan P. Murphy
  333. 333. – Which Battery caused the parked car to move further? • The larger D battery because it has more mass and thus has more force.- – Explain your answer above using F=ma. • F was increased because the D battery has more Mass. Copyright © 2010 Ryan P. Murphy
  334. 334. – Which Battery caused the parked car to move further? • The larger D battery because it has more mass and thus has more force. – Explain your answer above using F=ma. • F was increased because the D battery has more mass. Copyright © 2010 Ryan P. Murphy
  335. 335. – Which Battery caused the parked car to move further? • The larger D battery because it has more mass and thus has more force. – Explain your answer above using F=ma. • F was increased because the D battery has more Mass. Copyright © 2010 Ryan P. Murphy
  336. 336. – Which Battery caused the parked car to move further? • The larger D battery because it has more mass and thus has more force. – Explain your answer above using F=ma. • Force increased because the D battery has more mass. Copyright © 2010 Ryan P. Murphy
  337. 337. • How did the height of the ramp affect the movement of the parked car? Copyright © 2010 Ryan P. Murphy
  338. 338. • How did the height of the ramp affect the movement of the parked car? – Increasing the height of the ramp increased the batteries potential energy. Copyright © 2010 Ryan P. Murphy
  339. 339. • How did the height of the ramp affect the movement of the parked car? – Increasing the height of the ramp increased the batteries potential energy. This increase of potential energy created an increase in kinetic energy / (Acceleration) which caused the parked car to move further (force). Copyright © 2010 Ryan P. Murphy
  340. 340. • How did the resistance to force (washers) affect the movement of the parked car? Copyright © 2010 Ryan P. Murphy
  341. 341. • How did the resistance to force (washers) affect the movement of the parked car? – The more mass added to the parked car (washers) decreased the distance it traveled after being struck. Copyright © 2010 Ryan P. Murphy
  342. 342. • What should you be aware of as you are only a few years from driving? F=ma Copyright © 2010 Ryan P. Murphy
  343. 343. • What should you be aware of as you are only a few years from driving? F=ma – You should be aware that Newton’s Laws of motion are real and they can be deadly so be safe. Copyright © 2010 Ryan P. Murphy
  344. 344. • Remember! Seatbelts save lives. There’s room to live inside of the car if struck hard. – Your odds of survival decrease without a seatbelt. Copyright © 2010 Ryan P. Murphy
  345. 345. • Career Opportunity: Crash reconstruction. Draws upon principles in physics and mathematics. Copyright © 2010 Ryan P. Murphy
  346. 346. • Video! Crash Test without a seatbelt (9 sec) – http://www.youtube.com/watch?v=KBzyiKmhhY
  347. 347. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity2 – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/sec – Velocity 3 m/sec
  348. 348. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/sec – Velocity 3 m/sec
  349. 349. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West
  350. 350. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) Organize your work! – Gravity = 9.8 m/s² PE= mgh PE = ____ * ___ * ____ – Velocity 3 m/s West PE = Joules
  351. 351. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West
  352. 352. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  353. 353. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  354. 354. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  355. 355. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  356. 356. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  357. 357. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules Organize your work! PE= mgh PE = ____ * ___ * ____ PE = Joules
  358. 358. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) PE=mgh – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  359. 359. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) PE=mgh – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules PE= .148kg * 9.8 m/s² * .06m
  360. 360. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) PE=mgh – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules PE= .148kg * 9.8 m/s² * .06m
  361. 361. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) PE=mgh – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules PE= .148kg * 9.8 m/s² * .06m PE = .087 Joules
  362. 362. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules
  363. 363. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity²
  364. 364. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity²
  365. 365. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s
  366. 366. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s
  367. 367. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s KE = .666 Joules
  368. 368. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules KE = .666 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s KE = .666 Joules
  369. 369. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules KE = .666 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s KE = .666 Joules
  370. 370. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules KE = .666 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s KE = .666 Joules Mechanical Energy (ME) =
  371. 371. • Find the Mechanical Energy of the large D battery hitting the parked car from the highest position. • PE = mgh KE = ½ mass * velocity² • PE = .087 Joules KE = .666 Joules – D Battery mass = 148 g (.148kg) – Height = 6 cm (.06m) – Gravity = 9.8 m/s² – Velocity 3 m/s West – Answer in Joules KE=1/2 m * velocity² KE=.5 * .148 * 3 m/s KE=.5 * .148 * 9 m/s KE = .666 Joules Mechanical Energy (ME) = .753 Joules
  372. 372. • Question on homework: Describe three ways potential energy of position as well as potential chemical energy are combined with kinetic energy to generate kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  373. 373. • Question on homework: Describe three ways potential energy of position as well as potential chemical energy are combined with kinetic energy to generate kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  374. 374. • Hydropower : Potential energy turned into kinetic energy of motion turned into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  375. 375. • Hydropower : Potential energy turned into kinetic energy of motion turned into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  376. 376. • Hydropower gave rise to early industry. – One of our earliest ways to harness energy. Copyright © 2010 Ryan P. Murphy
  377. 377. • Hydropower gave rise to early industry. – One of our earliest ways to harness energy. Potential Energy Copyright © 2010 Ryan P. Murphy
  378. 378. • Hydropower gave rise to early industry. – One of our earliest ways to harness energy. Potential Energy Transfer to Kinetic Energy Copyright © 2010 Ryan P. Murphy
  379. 379. • In Dinowrig, Wales. Water is pumped from the lower lake to the upper lake when electricity is low in demand.
  380. 380. • During times high electrical demand, the stored potential energy flows downhill to generate electricity (Kinetic).
  381. 381. • During times high electrical demand, the stored potential energy flows downhill to generate electricity (Kinetic).
  382. 382. • During times high electrical demand, the stored potential energy flows downhill to generate electricity (Kinetic).
  383. 383. • Kinetic energy to kinetic electrical energy Copyright © 2010 Ryan P. Murphy
  384. 384. • Gravity turns potential energy in tides, into kinetic energy (flowing tides) into kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  385. 385. • Geothermal Copyright © 2010 Ryan P. Murphy
  386. 386. • Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate electrical energy. Copyright © 2010 Ryan P. Murphy
  387. 387. • Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate electrical energy. Copyright © 2010 Ryan P. Murphy
  388. 388. • Geothermal -Kinetic energy heat, turns water into steam, water rises and runs a turbine to generate kinetic electrical energy. Copyright © 2010 Ryan P. Murphy
  389. 389. • Steam / Coal and wood burning electric plant
  390. 390. • Nuclear energy – Nuclear reactions generate kinetic electrical energy using water, steam, and a turbine.
  391. 391. • When you lift an object, chemical energy (a form of potential energy) stored in the chemicals obtained from your digested food is converted into the mechanical energy (kinetic) used to move your arm and the object upward and into heat given off by your body. Copyright © 2010 Ryan P. Murphy
  392. 392. • When you lift an object, chemical energy (a form of potential energy) stored in the chemicals obtained from your digested food is converted into the mechanical energy (kinetic). Which is then used to move your body. Heat is produced Copyright © 2010 Ryan P. Murphy
  393. 393. • When you lift an object, chemical energy (a form of potential energy) stored in the chemicals obtained from your digested food is converted into the mechanical energy (kinetic). Which is then used to move your body. Heat is produced Copyright © 2010 Ryan P. Murphy
  394. 394. • When you lift an object, chemical energy (a form of potential energy) stored in the chemicals obtained from your digested food is converted into the mechanical energy (kinetic). Which is then used to move your body. Heat is produced Copyright © 2010 Ryan P. Murphy
  395. 395. • When you lift an object, chemical energy (a form of potential energy) stored in the chemicals obtained from your digested food is converted into the mechanical energy (kinetic). Which is then used to move your body. Heat is released. Copyright © 2010 Ryan P. Murphy
  396. 396. • Forces in Motion, Speed, Velocity, Acceleration and more available sheet.
  397. 397. • Forces in Motion, Speed, Velocity, Acceleration and more available sheet.
  398. 398. • Forces in Motion, Speed, Velocity, Acceleration and more available sheet.
  399. 399. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  400. 400. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  401. 401. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  402. 402. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  403. 403. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude
  404. 404. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Magnitude is just the measurement without direction
  405. 405. • Kinetic energy is a scalar quantity; as it does not have a direction. – Velocity, acceleration, force, and momentum, are vectors. A quantity having direction as well as magnitude Magnitude is just the measurement without direction
  406. 406. • How you can remember the difference between the two…
  407. 407. • How you can remember the difference between the two… Scales are still / Don’t have direction
  408. 408. • How you can remember the difference between the two… Scales are still / Don’t have direction Just a cool fighter pilot name, Jet Pilots travel with direction.
  409. 409. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  410. 410. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  411. 411. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  412. 412. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  413. 413. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  414. 414. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  415. 415. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  416. 416. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  417. 417. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  418. 418. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  419. 419. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction. Magnitude is just the measurement without direction
  420. 420. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  421. 421. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  422. 422. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  423. 423. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  424. 424. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  425. 425. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  426. 426. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  427. 427. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  428. 428. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  429. 429. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  430. 430. • Which are scalar quantities? – Magnitude only • Which are vector quantities? – Magnitude and direction.
  431. 431. • Which are scalar quantities? Magnitude is just the – Magnitude only measurement • Which are vector quantities? without – Magnitude and direction. direction
  432. 432. • Video Link! (Optional) Scalers and Vectors. – http://www.youtube.com/watch?v=EUrMI0DIh40
  433. 433. • More Units Available at… Earth Science: The Soil Science and Glaciers Unit, The Geology Topics Unit, The Astronomy Topics Unit, The Weather and Climate Unit, and The River and Water Quality Unit, and The Water Molecule Unit. Physical Science: The Laws of Motion and Machines Unit, The Atoms and Periodic Table Unit, Matter, Energy, and the Environment Unit, and The Science Skills Unit. Life Science: The Infectious Diseases Unit, Cellular Biology Unit, The DNA and Genetics Unit, The Botany Unit, The Taxonomy and Classification Unit, Ecology: Feeding Levels Unit, Ecology: Interactions Unit, Ecology: Abiotic Factors, The Evolution and Natural Selection Unit and The Human Body Systems and Health Topics Unit. Copyright © 2010 Ryan P. Murphy
  434. 434. • http://sciencepowerpoint.com/

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