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 defined as?
What is power defined as?
Rate of energy transfer
Power can also be defined as the rate at which what is done?
Power can also be defined as the rate at which what is done?
Work
Which formula correctly represents power in terms of energy transferred?
Which formula correctly represents power in terms of energy transferred?
Which formula correctly represents power in terms of work done?
Which formula correctly represents power in terms of work done?
What is the unit of power?
What is the unit of power?
Watts (W)
What is the unit of energy transferred?
What is the unit of energy transferred?
Joules (J)
What power is equal to 1 joule per second?
What power is equal to 1 joule per second?
1 watt
Two motors do the same work. Motor A takes 5s, Motor B takes 10s. Which is more powerful?
Two motors do the same work. Motor A takes 5s, Motor B takes 10s. Which is more powerful?
Motor A
Why is a motor that completes work faster more powerful?
Why is a motor that completes work faster more powerful?
Energy transferred at faster rate
In the formula , what does represent?
In the formula , what does represent?
Time in seconds