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    Physics - Part 1

    Physics - Part 1

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    Speed as well as accuracy is important in this section. Work quickly, or you might not finish the paper. There are no penalties for incorrect responses, only marks for correct answers, so you should attempt all questions. Each question is worth one mark.

    You must complete the answers within the time limit. Calculators are NOT permitted.

    Good Luck!

    Power 

    Power (W) = Work done (j) / time (s)

    Or

    Power (W) = energy transferred (j) / time (s)

    1. If a woman pushes a child in a pram for 10 minutes to reach the shops from her home and uses 600 joules of work to do so, what is her power?
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    Explanation

    The correct answer is B.

    10 minutes is 600 seconds, 600 joules over 600 seconds is 1W of power.

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