
Electrical Power Concepts and Calculations

Interactive Video
•
Physics, Science, Mathematics
•
9th - 12th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is potential energy converted in an electric field?
Into thermal energy
Into chemical energy
Into kinetic energy
Into light energy
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does performance in electrical terms refer to?
The amount of energy stored
The resistance in a circuit
The ratio of work done to time taken
The speed of current flow
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for electrical power?
Power = Current / Resistance
Power = Voltage + Current
Power = Voltage x Current
Power = Voltage / Current
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does resistance affect power in a circuit with constant voltage?
Increasing resistance increases power
Power is always constant
Decreasing resistance increases power
Resistance has no effect on power
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to power if the voltage is doubled?
Power is doubled
Power is quadrupled
Power remains the same
Power is halved
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between voltage and current in Ohm's Law?
Voltage = Current / Resistance
Voltage = Resistance / Current
Voltage = Current x Resistance
Voltage = Resistance + Current
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What unit is used to measure electrical power?
Joules
Amperes
Watts
Volts
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