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# Electrical current conversion triad PowerPoint, Electricty PowerPoint

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### Electrical current conversion triad PowerPoint, Electricty PowerPoint

1. 1. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
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 -Don’t skip pages -Make visuals clear and well drawn. Please label. Ice Melting Water Boiling Vapor GasT E M P Heat Added 
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. • Where do you find this strange device? – What does it do?
6. 6. • An electric meter or energy meter is a device that measures the amount of electrical energy consumed by a residence, business, or an electrically powered device.
7. 7. • Video Link! Reading your meter at home. • Optional: – http://www.youtube.com/watch?v=k2ogwitaAh4 Using a Multimeter - http://www.doctronics.co.uk/meter.htm
8. 8.  Volt: A measure of the force or pressure under which electricity flows.
9. 9.  Ampere: A measure of how much current moves through a wire in one second. Copyright © 2010 Ryan P. Murphy
10. 10. • Ampere: A measure of how much current moves through a wire in one second. – Basically, the larger the size of wire, the greater the ampere capacity. Copyright © 2010 Ryan P. Murphy
11. 11. • Where do your see these plugs? – Why are they larger? Copyright © 2010 Ryan P. Murphy
12. 12. • Answer: The Plug to a dryer or stove is much thicker than a standard outlet to account for extra amps. Copyright © 2010 Ryan P. Murphy
13. 13. • Answer: The Plug to a dryer or stove is much thicker than a standard outlet to account for extra amps. Copyright © 2010 Ryan P. Murphy
14. 14.  Watt: The amount of electricity consumed per second. Copyright © 2010 Ryan P. Murphy
15. 15. • A Watt is calculated by multiplying volts times amps. Most household electrical usage is billed in kilowatt hours, or the amount of hours times 1,000 watts. Copyright © 2010 Ryan P. Murphy
16. 16. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment… – How many watts does it require?
17. 17. • Raise your hand if you have no clue because you weren’t paying attention for that black slide that discussed what a Watt was?
18. 18. • Raise your hand if you have no clue because you weren’t paying attention for that black slide that discussed what a Watt was?
19. 19. • Electricity Available Sheet
20. 20. • Volts are a measure of the force or pressure under which electricity flows.
21. 21. • Volts are a measure of the force or pressure under which electricity flows.
22. 22. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • .
23. 23. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created.
24. 24. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
25. 25. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
26. 26. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
27. 27. Crazy things about to happen.
28. 28. Which is the correct description of Watts?
29. 29. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
30. 30. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
31. 31. Which is the correct description of Amps? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
32. 32. Which is the correct description of Amps? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
33. 33. Which is the correct description of Volts? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
34. 34. Which is the correct description of Volts? This is a measurement of electrical power created. This is a measure of the force or pressure under which electricity flows This is a measurement of the current flow rate of electrons
35. 35. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
36. 36. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • . • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
37. 37. Which is the correct description of Amps? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
38. 38. Which is the correct description of Amps? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
39. 39. Which is the correct description of Volts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
40. 40. Which is the correct description of Volts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
41. 41. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
42. 42. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows
43. 43. atts
44. 44. atts
45. 45. atts olts
46. 46. atts olts
47. 47. atts olts mps
48. 48. atts olts mps
49. 49. atts olts mps
50. 50. atts olts mps How do you find Watts?
51. 51. atts olts mps How do you find Watts?
52. 52. atts olts mps How do you find Watts?
53. 53. atts olts mps How do you find Amps?
54. 54. atts olts mps How do you find Amps?
55. 55. atts olts mps How do you find Amps?
56. 56. atts olts mps How do you find Volts?
57. 57. atts olts mps How do you find Volts?
58. 58. atts olts mps How do you find Volts?
59. 59. • Please complete these questions on the available sheet.
60. 60. • A Watt is calculated by multiplying volts times amps. Most household electrical usage is billed in kilowatt hours, or the amount of hours times 1,000 watts. Copyright © 2010 Ryan P. Murphy
61. 61. • A Watt is calculated by multiplying volts times amps. Most household electrical usage is billed in kilowatt hours, or the amount of hours times 1,000 watts. Copyright © 2010 Ryan P. Murphy
62. 62. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment… – How many watts does it require?
63. 63. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment… – How many watts does it require?
64. 64. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment… – How many watts does it require?
65. 65. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment – How many watts does it require? – Watts = Volts x Amps – Watts = 120v x 2.5amps = 300 Watts
66. 66. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment – How many watts does it require? – Watts = Volts x Amps – Watts = 120v x 2.5amps = 300 Watts
67. 67. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment – How many watts does it require? – Watts = Volts x Amps – Watts = 120v x 2.5amps =
68. 68. • Question? We have a small computer server with a sticker that shows 2.5 amps. Given a normal 120 Volt, 60 hz power source and the ampere reading from equipment – How many watts does it require? – Watts = Volts x Amps – Watts = 120v x 2.5amps = 300 Watts
69. 69. “Ahh, we have to do it again.” “We did it like ten times already.”
70. 70. • Please complete these questions on the available sheet.
71. 71. • Question? We have an electronic device with a sticker that shows 5 amps. Given a 12 Volt battery power source, How many watts does it require?: – Watts = Volts x Amps – Watts = 12 volts x 5 amps = 60watts
72. 72. • Question? We have an electronic device with a sticker that shows 5 amps. Given a 12 Volt battery power source, How many watts does it require?: – Watts = Volts x Amps – Watts = 12 volts x 5 amps = 60watts
73. 73. • Question? We have an electronic device with a sticker that shows 5 amps. Given a 12 Volt battery power source, How many watts does it require?: – Watts = Volts x Amps – Watts = 12 volts x 5 amps = 60watts
74. 74. • Question? We have an electronic device with a sticker that shows 5 amps. Given a 12 Volt battery power source, How many watts does it require?: – Watts = Volts x Amps
75. 75. • Question? We have an electronic device with a sticker that shows 5 amps. Given a 12 Volt battery power source, How many watts does it require?: – Watts = Volts x Amps – Watts = 12 volts x 5 amps =
76. 76. • Please complete these questions on the available sheet.
77. 77. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require?
78. 78. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require?
79. 79. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require?
80. 80. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require?
81. 81. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require? – Volts = watts divided by amps.
82. 82. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require? – Volts = watts divided by amps.
83. 83. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require? – Volts = watts divided by amps. – Volts = 60 / 5
84. 84. • We have a 60 watt light bulb using 5 amps of power. – How many volts does it require? – Volts = watts divided by amps. – Volts = 60 / 5 – Volts =12
85. 85. • Please complete these questions on the available sheet.
86. 86. • We have a 100 watt light bulb using .83 amps of power per second. – How many volts does it require?
87. 87. • We have a 100 watt light bulb using .83 amps of power per second. – How many volts does it require?
88. 88. • We have a 100 watt light bulb using .83 amps of power per second. – How many volts does it require? – Volts = watts divided by amps.
89. 89. • We have a 100 watt light bulb using .83 amps of power per second. – How many volts does it require? – Volts = watts divided by amps. – Volts = 100 / .83
90. 90. • We have a 100 watt light bulb using .83 amps of power per second. – How many volts does it require? – Volts = watts divided by amps. – Volts = 100 / .83 – Volts = 120
91. 91. • Use natural light instead of lightning. Copyright © 2010 Ryan P. Murphy
92. 92. • Energy efficient light bulbs Copyright © 2010 Ryan P. Murphy
93. 93. • Energy efficient light bulbs – More lumens, less wasted heat, less energy. Copyright © 2010 Ryan P. Murphy
94. 94. • Please complete these questions on the available sheet.
95. 95. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require?
96. 96. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require?
97. 97. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require?
98. 98. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require? – amps = watts / volts
99. 99. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require? – amps = watts / volts – amps = 60 / 12
100. 100. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require? – amps = watts / volts – amps = 60 / 12 – amps = 5
101. 101. • A sample electrical panel uses 60 watts at 12 volts. – How many amps does it require? – amps = watts / volts – amps = 60 / 12 – amps = 5
102. 102. • Please complete these questions on the available sheet.
103. 103. Get music for last question at… (Napoleon Dynamite Dance Song) http://www.youtube.com/watch?v=Nzor09DbYfY
104. 104. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?:
105. 105. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?: watts = volts x amps
106. 106. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?: watts = volts x amps
107. 107. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?: watts = volts x amps watts = 50 volts x 1.75 amps =
108. 108. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?: watts = volts x amps watts = 50 volts x 1.75 amps = 87.5 watts
109. 109. Question? A computer uses 1.75 amps. Given a 50 volt power source, How many watts does it require?: watts = volts x amps watts = 50 volts x 1.75 amps = 87.5 watts Learn more about amps, watts, volts and ohms http://science.howstuffworks.com/environmental/energy/qu estion501.htm
110. 110. • What’s a resistance?
111. 111.  Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. Copyright © 2010 Ryan P. Murphy
112. 112.  Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. Copyright © 2010 Ryan P. Murphy The refusal to accept or comply with something; the attempt to prevent something by action or argument.
113. 113. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
114. 114. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
115. 115. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
116. 116. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
117. 117. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
118. 118. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
119. 119. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
120. 120. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
121. 121. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
122. 122. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
123. 123. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons This is a measure of the force or pressure under which electricity flows Anything in an electrical circuit that impedes the flow of current.
124. 124. Which is the correct description of Watts? This is a measurement of electrical power created. This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows
125. 125. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
126. 126. • Volts are a measure of the force or pressure under which electricity flows. • Amps are a measurement of the current flow rate of electrons • Resistance: Anything in an electrical circuit that impedes the flow of current is referred to as resistance. • Watts is a measurement of electrical power created. – 1 watt is equal to one joule of energy per second.
127. 127. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
128. 128. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
129. 129. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
130. 130. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
131. 131. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measureme nt of electrical power created.
132. 132. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measureme nt of electrical power created.
133. 133. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measureme nt of electrical power created.
134. 134. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
135. 135. Which is the correct description of Watts? This is a measurement of the current flow rate of electrons Anything in an electrical circuit that impedes the flow of current. This is a measure of the force or pressure under which electricity flows This is a measurement of electrical power created.
136. 136. • Georg Simon Ohm (1789 –1854) – Ohm found that there is a direct proportionality between voltage applied across a conductor and the resultant electric current.
137. 137. • Georg Simon Ohm (1789 –1854) – Ohm found that there is a direct proportionality between voltage applied across a conductor and the resultant electric current. Learn more at.. http://www.allaboutcircuits.co m/vol_1/chpt_2/1.html
138. 138.  Ohms: The measure of resistance in a circuit to the flow of an electric current.  The greater the ohm value the more difficult it is for current to flow through a given circuit.  A low ohm value represents a low resistance and the easy flow of current through a circuit Current
139. 139.  Ohms: The measure of resistance in a circuit to the flow of an electric current.  The greater the ohm value the more difficult it is for current to flow through a given circuit.  A low ohm value represents a low resistance and the easy flow of current through a circuit Current I is used instead of C because C is already used for Coulombs.
140. 140.  Ohms: The measure of resistance in a circuit to the flow of an electric current.  The greater the ohm value the more difficult it is for current to flow through a given circuit.  A low ohm value represents a low resistance and the easy flow of current through a circuit Current I is used instead of C because C is already used for Coulombs. I is amps and today, you may see A instead of I
141. 141.  Ohms: The measure of resistance in a circuit to the flow of an electric current.  The greater the ohm value the more difficult it is for current to flow through a given circuit.  A low ohm value represents a low resistance and the easy flow of current through a circuit Current
142. 142. • Ohms: The measure of resistance in a circuit to the flow of an electric current. – The greater the ohm value the more difficult it is for current to flow through a given circuit. – A low ohm value represents a low resistance and the easy flow of current through a circuit
143. 143. • Ohms: The measure of resistance in a circuit to the flow of an electric current. – The greater the ohm value the more difficult it is for current to flow through a given circuit. – A low ohm value represents a low resistance and the easy flow of current through a circuit.
144. 144. • Ohms: The measure of resistance in a circuit to the flow of an electric current. – The greater the ohm value the more difficult it is for current to flow through a given circuit. – A low ohm value represents a low resistance and the easy flow of current through a circuit.
145. 145. • Ohms: The measure of resistance in a circuit to the flow of an electric current. – The greater the ohm value the more difficult it is for current to flow through a given circuit. – A low ohm value represents a low resistance and the easy flow of current through a circuit. Current and resistance are inversely proportional. As one goes up, the other goes down. Voltage = (I) Electricity times Resistance
146. 146. • Ohms: The measure of resistance in a circuit to the flow of an electric current. – The greater the ohm value the more difficult it is for current to flow through a given circuit. – A low ohm value represents a low resistance and the easy flow of current through a circuit. Current and resistance are inversely proportional. As one goes up, the other goes down. Resistance = Voltage divided by Current (I)
147. 147. • Video Link! Ohms Law (Optional) – Be proactive, record notes as he does. – http://www.youtube.com/watch?v=-mHLvtGjum4
148. 148. • Please complete these questions on the available sheet.
149. 149. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire?
150. 150. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire?
151. 151. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire?
152. 152. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire?
153. 153. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire? V 220 R= ------ I
154. 154. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire? V 220 R= ------ --------- = 6.1 ohms I 36A
155. 155. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire? V 220 R= ------ --------- = 6.1 ohms I 36A
156. 156. • If 220 volts travel through a copper wire and the current is 36A, – What’s the resistance of the wire? V 220 R= ------ --------- = 6.1 ohms I 36A
157. 157. • Electricity flows through a wire much like water flows through a pipe.
158. 158. • Electricity flows through a wire much like water flows through a pipe. – A force is required to drive it and resistance to is encountered, the flow of current is measured in amps
159. 159. • Ohms Law Simulator at… – http://phet.colorado.edu/en/simulation/ohms-law
160. 160. • Please complete these questions on the available sheet.
161. 161. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill?
162. 162. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill?
163. 163. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill?
164. 164. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill?
165. 165. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill? – Electric Current = Volts / Resistance
166. 166. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill? – Electric Current = Volts / Resistance – Electric Current = 9 / 18
167. 167. • A nine volt battery supplies power to a cordless drill with a resistance of 18 ohms. – How much current (I) is flowing through the drill? – Electric Current = Volts / Resistance – Electric Current = 9 / 18 – Electric Current = .5 amps
168. 168. V = I x R
169. 169. V = I x R V = I x R R R V = I x R R R I = V R I = 9 18 I = .5 amps
170. 170. • Please complete these questions on the available sheet.
171. 171. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
172. 172. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience?
173. 173. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience?
174. 174. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R
175. 175. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
176. 176. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
177. 177. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
178. 178. • A Rude Monkey decided to stick his tongue to a 120 V outlet with 50,000 ohms of resistance? – How much current will he experience? V 120 V I = ----- ----------- = .0024A R 50,000 ohms
179. 179. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
180. 180. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
181. 181. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
182. 182. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
183. 183. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
184. 184. • A 110 volt outlet supplies power to a strobe light with a resistance of 2600 ohms. – How much current is flowing through the strobe light? V 110 V I = ----- ----------- = .0423A R 2,600 ohms
185. 185. • Please complete these questions on the available sheet.
186. 186. • Video Link! Current, Voltage, Resistance – http://www.youtube.com/watch?v=J4Vq- xHqUo8
187. 187. • Visit a more complex circuit simulator AC and DC • http://phet.colorado.edu/en/simulation/circ uit-construction-kit-ac
188. 188. • Visit an online circuit builder if materials are not present. – http://phet.colorado.edu/en/simulation/circuit- construction-kit-dc
189. 189.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
190. 190.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
191. 191.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
192. 192.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
193. 193.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
194. 194.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
195. 195.  Please record the symbols and their names below. Copyright © 2010 Ryan P. Murphy
196. 196. • Activity – Creating a Circuit – Please create a circuit to light the light bulb with a switch. – Draw the circuit in your journal using the correct symbols. – Teacher to test voltage (record next to picture) – Label the following • Conductor • Insulator • Resistance • DC current • Coulomb’s Law Copyright © 2010 Ryan P. Murphy
197. 197. • Electricity Available Sheet
198. 198. • Possible answer to drawing a circuit. Copyright © 2010 Ryan P. Murphy
199. 199. • Activity: Connecting all of the lights to create one large circuit. –Can we connect all of the lights along a chain? –What will happen if one light bulb goes out? –Can we wire it so if one bulb goes the whole string will stay lit.
200. 200. • This will be you at some point in your life so pay attention.
201. 201. • This will be you at some point in your life so pay attention.
202. 202. • When you jump a car’s battery, ground the negative. – Avoid touching the cables together and notice the sequence, 1, 2, 3, 4. Copyright © 2010 Ryan P. Murphy
203. 203. • When you jump a car’s battery, ground the negative. – Avoid touching the cables together and notice the sequence, 1, 2, 3, 4. Copyright © 2010 Ryan P. Murphy
204. 204. • When you jump a car’s battery, ground the negative. – Avoid touching the cables together and notice the sequence, 1, 2, 3, 4. Copyright © 2010 Ryan P. Murphy
205. 205. • When you jump a car’s battery, ground the negative. – Avoid touching the cables together and notice the sequence, 1, 2, 3, 4. Copyright © 2010 Ryan P. Murphy
206. 206. • When you jump a car’s battery, ground the negative. – Avoid touching the cables together and notice the sequence, 1, 2, 3, 4. Copyright © 2010 Ryan P. Murphy
207. 207. • Video! How to jumpstart a car. (Saab Ad?) – You will be driving soon, and may have to do this on your own. Is this an ad? – http://www.youtube.com/watch?v=li1PL6EpFF8
208. 208.  Typical outlet for AC Copyright © 2010 Ryan P. Murphy
209. 209.  Typical outlet for AC Copyright © 2010 Ryan P. Murphy
210. 210.  Typical outlet for AC Copyright © 2010 Ryan P. Murphy
211. 211.  Typical outlet for AC Copyright © 2010 Ryan P. Murphy
212. 212. • Danger – Do not attempt electrical work until you have learned the safe and proper technique from a certified electrician. Copyright © 2010 Ryan P. Murphy
213. 213. • Danger – Do not attempt electrical work until you have learned the safe and proper technique from a certified electrician. Copyright © 2010 Ryan P. Murphy
214. 214. • Activity Challenge. • Visit this website and fill in the blanks correctly to demonstrate understanding. – http://education.jlab.org/reading/electrostatics.html
215. 215. • http://sciencepowerpoint.comWebsite Link:
216. 216. http://sciencepowerpoint.com/Energy_Topics_Unit.html Areas of Focus within The Matter, Energy, and the Environment Unit. There is no such thing as a free lunch, Matter, Dark Matter, Elements and Compounds, States of Matter, Solids, Liquids, Gases, Plasma, Law Conservation of Matter, Physical Change, Chemical Change, Gas Laws, Charles Law, Avogadro’s Law, Ideal Gas Law, Pascal’s Law, Viscosity, Archimedes Principle, Buoyancy, Seven Forms of Energy, Nuclear Energy, Electromagnet Spectrum, Waves / Wavelengths, Light (Visible Light), Refraction, Diffraction, Lens, Convex / Concave, Radiation, Electricity, Lightning, Static Electricity, Magnetism, Coulomb’s Law, Conductors, Insulators, Semi-conductors, AC and DC current, Amps, Watts, Resistance, Magnetism, Faraday’s Law, Compass, Relativity, Einstein, and E=MC2, Energy, First Law of Thermodynamics, Second Law of Thermodynamics, Third Law of Thermodynamics, Industrial Processes, Environmental Studies, The 4 R’s, Sustainability, Human Population Growth, Carrying Capacity, Green Design, Renewable Forms of Energy.