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Physics Topic 1 > Efficiency > Flashcards

Efficiency Flashcards

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1
Q

What is efficiency?

A

Efficiency is useful energy transferred by device / total ergo supplied to device

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2
Q

When is energy useful?

A

Energy is only useful when it is transferred from one store to a useful store

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3
Q

What makes a device efficient ?

A

If it has less waste energy.

Total energy input = useful energy output + wasted energy

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Physics Topic 1 (18 decks)

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