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

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Question 12

An experiment is set up to observe the motion of tiny pollen grains suspended in water under a microscope.

a.

Describe the appearance of the path shown by a single pollen grain.

[2]
b.

Explain what causes this motion in terms of water molecules.

[3]
c.

The water is heated to a higher temperature. Explain how this changes the motion of the pollen grains.

[3]
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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