Power (OCR GCSE Physics A (Gateway Science Suite)): Flashcards

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Definition of power (energy transfer)

Rate at which energy is transferred

Definition of power (work done)

Rate at which work is done

Power formula using energy transferred

P=EtP = \frac{E}{t}

Power formula using work done

P=WtP = \frac{W}{t}

Unit of power

Watts (W)

1 joule per second equals

1 watt

Unit of energy transferred in power formula

Joules (J)

Unit of work done in power formula

Joules (J)

Motor completing same work faster is...

More powerful

Why is faster motor more powerful?

Energy transferred at faster rate

Explore OCR GCSE Physics A (Gateway Science Suite) Revision Notes by Topics

Energy Changes in a System

National & Global Energy Resources

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Energy Changes in a System

National & Global Energy Resources

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Energy Changes in a System

National & Global Energy Resources

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Energy Changes in a System

National & Global Energy Resources

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