Question detail

An appliance transfers energy for 20 s at a power of 60 W. Calculate the energy transferred.

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Topic

Energy transfers

Question

An appliance transfers energy for 20 s at a power of 60 W. Calculate the energy transferred.

1200 J energy transferred

Use E = P x t. Substituting 60 W and 20 s gives E = 60 x 20 = 1200 J, so the energy transferred is 1200 J.

Energy transfers in everyday appliances common mistake 1

Giving a vague answer instead of directly addressing: Recall and apply the equation E = P x t..

Answer by clearly explaining how to recall and apply the equation E = P x t..

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