Unit 26 Types Of Energy

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Forms of Energy

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Unit 26 Types Of Energy

  1. 1. Unit 26<br />Types of Energy<br />
  2. 2. Law of Conservation of Energy<br />Energy can neither be created nor destroyed. Energy changes from one kind to another. <br />The total energy of an object never changes.<br />
  3. 3. Kinetic Energy<br />Anything that has mass and movement has kinetic energy.<br />The kinetic energy of an object in this case is given by the relation: <br />KE = (1/2)mv2<br />m=mass of the object <br />V=velocity of the object <br />The greater the mass or velocity of a moving object, the more kinetic energy it has.<br />
  4. 4. Kinetic Energy<br />The greater the mass or velocity of a moving object, the more kinetic energy it has.<br />
  5. 5. Potential Energy<br />Potential energy is the energy stored in a system. It is the energy that can be released to become kinetic or another form.<br />PE = mgh<br /> PE = Energy (in Joules) <br />m = mass (in kilograms) <br />g = gravitational acceleration of the earth (9.8 m/sec2) <br />h = height above earth&apos;s surface (in meters) <br />
  6. 6. Potential Energy<br />
  7. 7. Mechanical Energy<br />Mechanical energy is also the total amount of kinetic and potential energy in a system. <br />Wind-up toys, grandfather clocks, and pogo sticks are examples of mechanical energy. Wind power uses mechanical energy to help create electricity. <br />Potential energy + Kinetic energy = <br />Mechanical energy<br />
  8. 8. Mechanical Energy Summary<br />
  9. 9. What is Electromagnetic Energy?<br /><ul><li>Radio Waves
  10. 10. Microwaves
  11. 11. Infrared
  12. 12. Visible Light
  13. 13. Ultraviolet
  14. 14. X-rays
  15. 15. Gamma Rays</li></li></ul><li>
  16. 16. What is Electrical Energy?<br /> Energy caused by the movement of electrons<br /> Easily transported through power lines and converted into other forms of energy<br />
  17. 17. What is Chemical Energy?<br /><ul><li> Energy that is available for release from chemical reactions.
  18. 18. The chemical bonds in a matchstick store energy that is transformed into thermal energy and electromagnetic energy when the match is struck.</li></li></ul><li>Examples of Stored Chemical Energy<br />
  19. 19. What is Nuclear Energy?<br />Nuclear energy is the energy stored in the nucleus of an atom. <br />
  20. 20. Summary of Energy-Part 1<br />
  21. 21. Summary of Energy-Part 2<br />
  22. 22. QUIZ TIME!<br />What type of energy cooks food in a microwave oven?<br />What type of energy is the spinning plate inside of a microwave oven?<br />
  23. 23. QUIZ TIME!<br />Electrical energy is transported to your house through power lines.<br />When you plug an electric fan to a power outlet, electrical energy is transform into what type of energy?<br />
  24. 24. QUIZ TIME!<br />What energy transformation occurs when an electric lamp is turned on?<br />ELECTRICAL ENERGY<br /><br />
  25. 25. What types of energy are shown below?<br />
  26. 26. What types of energy are shown below?<br />Potential<br />
  27. 27. What type of energy is shown below?<br />
  28. 28. What type of energy is shown below?<br />Chemical<br />
  29. 29. What types of energy are shown below?<br />
  30. 30. What types of energy are shown below?<br />Electromagnetic<br />(infrared with the remote and visible light from the TV)<br />
  31. 31. What type of energy is shown below?<br />
  32. 32. What type of energy is shown below?<br />Chemical<br />
  33. 33. What type of energy is shown below?<br />
  34. 34. What type of energy is shown below?<br />Electromagnetic <br />(Infrared and Visible Light)<br />
  35. 35. Energy Conversion In A Car<br />
  36. 36. Energy Conversion<br />Thermal Energy<br />Chemical Energy<br />Electrical Energy<br />Electromagnetic Energy<br />Mechanical Energy<br />

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