Physics GCSE
Power
What Power means in Physics GCSE, as defined for AQA, OCR.
Definitions of Power
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Reference: AQA
The rate of energy transfer, so dividing useful power output by total power input gives the same fraction as dividing useful energy output by total energy input.
Measures how quickly work is done, given by work done in joules divided by time in seconds, in watts.
The energy transferred each second, measured in watts, W.
Topics that use Power
- Efficiency (AQA GCSE)
- Power (AQA GCSE)
- Newton's laws (OCR GCSE)
Related terms
- balanced forces
- changing direction
- Circular motion
- constant velocity
- Directly Proportional
- Distance along the line of action of the force
- Efficiency
- energy transfer
Using Power in the exam
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