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

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Question 24

A teacher uses a microscope to observe tiny smoke particles suspended in air.

Which statement describes the reason for the random movement of these smoke particles?

A

Air molecules are moved by microscopic smoke particles.

B

Air molecules are moved by smoke molecules.

C

Microscopic smoke particles are moved by air molecules.

D

Smoke molecules are moved by air molecules.

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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