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

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Question 16

A student places a balloon filled with air into a bowl of hot water. The hot water warms the air inside the balloon.

a.

Suggest what happens to the balloon as the air inside it becomes warmer than the surroundings.

[1]
b.

Use ideas about molecules to explain your answer to (a)(i).

[3]
c.

The student uses a bicycle pump to inflate a bicycle tire. The student applies a force of 48 N48\text{ N}48 N to the pump handle. The force acts on an area of 8.0 cm28.0\text{ cm}^28.0 cm2.

Calculate the pressure exerted on the pump handle. Include the unit.

[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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