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physics paper one > efficiency > Flashcards

efficiency Flashcards

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Physics 101 flashcards AP® Physics flashcards
1
Q

efficiencies aren’t 100% efficient, so what are they between?

A

all efficiencies exist between 0-100%

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2
Q

what is useful energy?

A

the energy transferred into the form of energy that is wanted

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3
Q

what is wasted energy?

A

energy is transferred into a form of energy that is not useful. This is often thermal store or sound store.

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4
Q

how can you make an appliance more energy efficient?

A

must reduce the amount of wasted
energy. Eg by using lubrication, tightening loose or moving particles and reducing electrical resistance

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physics paper one (24 decks)

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