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WorksheetsElectrical Energy and Electric Power
Total questions: 5
Worksheet time: 3mins
Name
Class
Date
1.
The power of an appliance is...
a)
the amount of voltage going through it
b)
the amount of energy transferred per second
c)
the amount of charge that passes through per second
2.
Electrical power can be calculated using
a)
Resistance x Voltage
b)
Voltage x Current
c)
Voltage ÷ Current
3.
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
a)
170 W
b)
170 A
c)
1.7 V
d)
1.7 W
4.
Calculate the electric power of an electrical appliance in which 10 A of current is flowing through a resistor of 2 ohms.
Remember: V=IR and P=VI
Remember: V=IR and P=VI
a)
80 W
b)
200 W
c)
2.5 A
d)
22.5 KJ
5.
A bulb of 100 W means that it will consume electrical energy at the rate of:
a)
100 kJ per second.
b)
100 kJ per hour.
c)
100 joules per second.
d)
100 joules per hour.
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