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2.1.2a Particle structure and motion in solids, liquids and gases

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Question 62

Air is trapped in a cylinder by a piston.

The piston is pulled outwards, so the volume of the air increases.

The temperature of the air stays the same.

Which row describes how the average speed of the air molecules and the average distance between them changes?

A

Average speed: increases; Average distance: increases

B

Average speed: unchanged; Average distance: increases

C

Average speed: unchanged; Average distance: decreases

D

Average speed: decreases; Average distance: decreases

Markscheme

2.1.2a Particle structure and motion in solids, liquids and gases Questions

  1. IGCSE
  2. /Physics
  3. /2.1.2a Particle structure and motion in solids, liquids and gases

151 exam-style questions on CIE IGCSE Physics 2.1.2a Particle structure and motion in solids, liquids and gases. Each one has a worked solution and a mark scheme showing where the marks go.

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