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

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Question 4

A student uses a microscope to observe a suspension of tiny pollen grains in water.

a.

Describe what is observed regarding the appearance and movement of the pollen grains.

[2]
b.

Describe the typical path that a single pollen grain takes over a short period of time.

[2]
c.

Explain, in terms of molecules, what causes this motion of the pollen grains.

[2]
d.

State the name of this type of motion.

[1]
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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