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Physics · May / June 2019 · Paper 11 · Question 21

5054Particle model

Which statement about particles in a liquid is correct?

  1. AThey all have the same speed.
  2. BThey are stationary.
  3. CThey move at random.
  4. DThey vibrate about a fixed point.

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Correct answer: C. They move at random.

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