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Physics (AS & A Level) · May / June 2016 · Paper 13 · Question 9

9702Linear momentum and its conservation

Which row in the table gives the quantities that are conserved in a perfectly elastic collision between two gas molecules?

  1. Atotal momentum conserved, total kinetic energy conserved
  2. Btotal momentum conserved, total kinetic energy not conserved
  3. Ctotal momentum not conserved, total kinetic energy conserved
  4. Dtotal momentum not conserved, total kinetic energy not conserved

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Correct answer: A. total momentum conserved, total kinetic energy conserved

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