Electrical Power (AQA GCSE Physics): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is power?
What is power?
The rate energy is transferred
What is the unit of power?
What is the unit of power?
Watt (W)
Power is directly proportional to which two quantities?
Power is directly proportional to which two quantities?
Current and voltage
Power loss is proportional to the square of which quantity?
Power loss is proportional to the square of which quantity?
Current
Which formula correctly relates power, energy and time?
Which formula correctly relates power, energy and time?
In the formula , what does represent?
In the formula , what does represent?
Charge
A device uses 700 J in 50 s. What is its power?
A device uses 700 J in 50 s. What is its power?
14 W
An engine does 4500 J of work in 90 s. What is its power?
An engine does 4500 J of work in 90 s. What is its power?
50 W
What is the unit for energy transferred?
What is the unit for energy transferred?
Joules (J)
When using , time must be measured in which unit?
When using , time must be measured in which unit?
Seconds (s)