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

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Question 84

Pollen grains suspended in water are observed under a microscope to move in a random, zigzag motion. Which statement explains why the pollen grains move in this way?

A

They are hit by water molecules.

B

They are alive and swimming.

C

They are moved by convection currents in the water.

D

They are repelled by the light.

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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