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Dayana Huel

Asked in KS3 Physics - Energy and Matter

True or false: The useful output energy of a machine is always the same as its input energy.

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Grady Ondricka

Asked in KS3 Physics - Energy and Matter

True or false: Useful devices transfer energy from one store to another.

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Deron Ernser

Asked in KS3 Physics - Energy and Matter

Is energy always useful?

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Laila Weber

Asked in KS3 Physics - Energy and Matter

Why might rubber be a good insulator?

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Jarred Block

Asked in KS3 Physics - Energy and Matter

Give two examples of how insulators are used in everyday life.

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