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Physics (AS & A Level) · May / June 2021 · Paper 12 · Question 16

9702Energy conservation

An object of weight 12 N rests on a platform on top of a container with two pistons, as shown. The container contains a fixed mass of gas, and the pistons are free to move. The plunger is slowly pushed 4.0 cm to the right. As a result, the object slowly moves upwards a distance 0.50 cm. How much work is done on the object?

  1. A0.060 J
  2. B0.48 J
  3. C6.0 J
  4. D48 J

As printed in the paper

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Correct answer: A. 0.060 J

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