The document contains a lecture on electrical concepts including volts, amps, and watts. It begins with defining volts as a measure of the force or pressure of electricity flow. Amps are defined as the measurement of current flow rate. Watts are defined as the measurement of electrical power created by multiplying volts by amps. The document then provides examples of calculating watts, volts, and amps in different circuit scenarios.

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

3. • RED SLIDE: These are notes that are very
important and should be recorded in your
science journal.
Copyright © 2010 Ryan P. Murphy

4. -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 

5. • 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

6. • Where do you find this strange device?
– What does it do?

7. • 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.

8. • 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

10.  Volt: A measure of the force or pressure
under which electricity flows.

11.  Ampere: A measure of how much current
moves through a wire in one second.
Copyright © 2010 Ryan P. Murphy

12. • 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

13. • Where do your see these plugs?
– Why are they larger?
Copyright © 2010 Ryan P. Murphy

14. • 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

15. • 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

16.  Watt: The amount of electricity consumed
per second.
Copyright © 2010 Ryan P. Murphy

17. • 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

18. • 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?

19. • Raise your hand if you have no clue because
you weren’t paying attention for that black
slide that discussed what a Watt was?

20. • Raise your hand if you have no clue because
you weren’t paying attention for that black
slide that discussed what a Watt was?

21. • Electricity Available Sheet

23. • Volts are a measure of the force or pressure
under which electricity flows.

24. • Volts are a measure of the force or pressure
under which electricity flows.

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
• .

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.

27. • 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.

28. • 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.

29. • 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.

30. Crazy things about to happen.

31. Which is the correct description of Watts?

32. 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

33. 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

34. 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

35. 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

36. 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

37. 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

39. • 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.

40. • 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.

41. 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

42. 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

43. 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

44. 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

45. 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

46. 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

50. atts

51. atts

52. atts
olts

53. atts
olts

54. atts
olts mps

55. atts
olts mps

56. atts
olts mps

57. atts
olts mps
How do you
find Watts?

58. atts
olts mps
How do you
find Watts?

59. atts
olts mps
How do you
find Watts?

60. atts
olts mps
How do you
find Amps?

61. atts
olts mps
How do you
find Amps?

62. atts
olts mps
How do you
find Amps?

63. atts
olts mps
How do you
find Volts?

64. atts
olts mps
How do you
find Volts?

65. atts
olts mps
How do you
find Volts?

66. • Please complete these questions on the
available sheet.

67. • 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

68. • 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

69. • 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?

70. • 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?

71. • 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?

72. • 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

73. • 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

74. • 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 =

75. • 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

76. “Ahh, we have to
do it again.”
“We did it like ten
times already.”

77. • Please complete these questions on the
available sheet.

78. • 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

79. • 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

80. • 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

81. • 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

82. • 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 =

83. • Please complete these questions on the
available sheet.

84. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?

85. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?

86. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?

87. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?

88. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?
– Volts = watts divided by amps.

89. • We have a 60 watt light bulb using 5 amps
of power.
– How many volts does it require?
– Volts = watts divided by amps.

90. • 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

91. • 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

92. • Please complete these questions on the
available sheet.

93. • We have a 100 watt light bulb using .83
amps of power per second.
– How many volts does it require?

94. • We have a 100 watt light bulb using .83
amps of power per second.
– How many volts does it require?

95. • 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.

96. • 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

97. • 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

98. • Use natural light instead of lightning.
Copyright © 2010 Ryan P. Murphy

99. • Energy efficient light bulbs
Copyright © 2010 Ryan P. Murphy

100. • Energy efficient light bulbs
– More lumens, less wasted heat, less energy.
Copyright © 2010 Ryan P. Murphy

102. • Please complete these questions on the
available sheet.

103. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?

104. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?

105. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?

106. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?
– amps = watts / volts

107. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?
– amps = watts / volts
– amps = 60 / 12

108. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?
– amps = watts / volts
– amps = 60 / 12
– amps = 5

109. • A sample electrical panel uses 60 watts at
12 volts.
– How many amps does it require?
– amps = watts / volts
– amps = 60 / 12
– amps = 5

110. • Please complete these questions on the
available sheet.

112. Get music for last question at… (Napoleon Dynamite Dance
Song) http://www.youtube.com/watch?v=Nzor09DbYfY

114. Question? A computer uses 1.75
amps. Given a 50 volt power source, How
many watts does it require?:

115. Question? A computer uses 1.75
amps. Given a 50 volt power source, How
many watts does it require?:
watts = volts x amps

116. Question? A computer uses 1.75
amps. Given a 50 volt power source, How
many watts does it require?:
watts = volts x amps

117. 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 =

118. 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

119. 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

120. • What’s a resistance?

121.  Resistance: Anything in an electrical
circuit that impedes the flow of current is
referred to as resistance.
Copyright © 2010 Ryan P. Murphy

122.  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.

123. • 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.

124. • 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.

125. 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.

126. 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.

127. 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.

128. 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.

129. 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.

130. 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.

131. 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.

132. 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.

133. 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.

134. 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

136. • 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.

137. • 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.

138. 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.

139. 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.

140. 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.

141. 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.

142. 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.

143. 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.

144. 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.

145. 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.

146. 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.

147. • Georg Simon Ohm (1789 –1854)
– Ohm found that there is a direct proportionality
between voltage applied across a conductor
and the resultant electric current.

148. • 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

149.  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

150.  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.

151.  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

152.  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

153. • 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

154. • 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.

155. • 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.

156. • 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

157. • 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)

158. • Video Link! Ohms Law (Optional)
– Be proactive, record notes as he does.
– http://www.youtube.com/watch?v=-mHLvtGjum4

159. • Please complete these questions on the
available sheet.

160. • If 220 volts travel through a copper wire and
the current is 36A,
– What’s the resistance of the wire?

161. • If 220 volts travel through a copper wire and
the current is 36A,
– What’s the resistance of the wire?

162. • If 220 volts travel through a copper wire and
the current is 36A,
– What’s the resistance of the wire?

163. • If 220 volts travel through a copper wire and
the current is 36A,
– What’s the resistance of the wire?

164. • If 220 volts travel through a copper wire and
the current is 36A,
– What’s the resistance of the wire?
V 220
R= ------
I

165. • 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

166. • 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

167. • 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

168. • Electricity flows through a wire much like
water flows through a pipe.

169. • 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

170. • Ohms Law Simulator at…
– http://phet.colorado.edu/en/simulation/ohms-law

171. • Please complete these questions on the
available sheet.

172. • 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?

173. • 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?

174. • 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?

175. • 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?

176. • 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

177. • 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

178. • 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

179. V = I x R

180. 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

181. • Please complete these questions on the
available sheet.

182. • 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

183. • 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?

184. • 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?

185. • 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

186. • 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

187. • 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

188. • 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

189. • 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

190. • 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

191. • 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

192. • 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

193. • 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

194. • 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

195. • 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

196. • Please complete these questions on the
available sheet.

197. • Video Link! Current, Voltage, Resistance
– http://www.youtube.com/watch?v=J4Vq-
xHqUo8

198. • Visit a more complex circuit simulator AC
and DC
• http://phet.colorado.edu/en/simulation/circ
uit-construction-kit-ac

199. • Visit an online circuit builder if materials
are not present.
– http://phet.colorado.edu/en/simulation/circuit-
construction-kit-dc

200.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

201.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

202.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

203.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

204.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

205.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

206.  Please record the symbols and their
names below.
Copyright © 2010 Ryan P. Murphy

207. • 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

208. • Electricity Available Sheet

209. • Possible answer to drawing a circuit.
Copyright © 2010 Ryan P. Murphy

210. • 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.

211. • This will be you at some point in your life
so pay attention.

212. • This will be you at some point in your life
so pay attention.

213. • 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

214. • 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

215. • 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

216. • 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

217. • 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

218. • 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

219.  Typical outlet for AC
Copyright © 2010 Ryan P. Murphy

220.  Typical outlet for AC
Copyright © 2010 Ryan P. Murphy

221.  Typical outlet for AC
Copyright © 2010 Ryan P. Murphy

222.  Typical outlet for AC
Copyright © 2010 Ryan P. Murphy

223. • Danger – Do not attempt electrical work
until you have learned the safe and proper
technique from a certified electrician.
Copyright © 2010 Ryan P. Murphy

224. • Danger – Do not attempt electrical work
until you have learned the safe and proper
technique from a certified electrician.
Copyright © 2010 Ryan P. Murphy

225. • Activity Challenge.
• Visit this website and fill in the blanks correctly
to demonstrate understanding.
– http://education.jlab.org/reading/electrostatics.html

226. • http://sciencepowerpoint.comWebsite Link:

228. 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.

238. • Please visit the links below to learn more
about each of the units in this curriculum
– These units take me about four years to complete
with my students in grades 5-10.
Earth Science Units Extended Tour Link and Curriculum Guide
Geology Topics Unit http://sciencepowerpoint.com/Geology_Unit.html
Astronomy Topics Unit http://sciencepowerpoint.com/Astronomy_Unit.html
Weather and Climate Unit http://sciencepowerpoint.com/Weather_Climate_Unit.html
Soil Science, Weathering, More http://sciencepowerpoint.com/Soil_and_Glaciers_Unit.html
Water Unit http://sciencepowerpoint.com/Water_Molecule_Unit.html
Rivers Unit http://sciencepowerpoint.com/River_and_Water_Quality_Unit.html
= Easier = More Difficult = Most Difficult
5th – 7th grade 6th – 8th grade 8th – 10th grade

239. Physical Science Units Extended Tour Link and Curriculum Guide
Science Skills Unit http://sciencepowerpoint.com/Science_Introduction_Lab_Safety_Metric_Methods.
html
Motion and Machines Unit http://sciencepowerpoint.com/Newtons_Laws_Motion_Machines_Unit.html
Matter, Energy, Envs. Unit http://sciencepowerpoint.com/Energy_Topics_Unit.html
Atoms and Periodic Table Unit http://sciencepowerpoint.com/Atoms_Periodic_Table_of_Elements_Unit.html
Life Science Units Extended Tour Link and Curriculum Guide
Human Body / Health Topics
http://sciencepowerpoint.com/Human_Body_Systems_and_Health_Topics_Unit.html
DNA and Genetics Unit http://sciencepowerpoint.com/DNA_Genetics_Unit.html
Cell Biology Unit http://sciencepowerpoint.com/Cellular_Biology_Unit.html
Infectious Diseases Unit http://sciencepowerpoint.com/Infectious_Diseases_Unit.html
Taxonomy and Classification Unit http://sciencepowerpoint.com/Taxonomy_Classification_Unit.html
Evolution / Natural Selection Unit http://sciencepowerpoint.com/Evolution_Natural_Selection_Unit.html
Botany Topics Unit http://sciencepowerpoint.com/Plant_Botany_Unit.html
Ecology Feeding Levels Unit http://sciencepowerpoint.com/Ecology_Feeding_Levels_Unit.htm
Ecology Interactions Unit http://sciencepowerpoint.com/Ecology_Interactions_Unit.html
Ecology Abiotic Factors Unit http://sciencepowerpoint.com/Ecology_Abiotic_Factors_Unit.html

240. • The entire four year curriculum can be found at...
http://sciencepowerpoint.com/ Please feel free to
contact me with any questions you may have.
Thank you for your interest in this curriculum.
Sincerely,
Ryan Murphy M.Ed
www.sciencepowerpoint@gmail.com

241. • http://sciencepowerpoint.comWebsite Link: