O-LevelPhysicsThermal Physics5054/11 · May/June 2018 · Q201 Mark

When a piece of smouldering rope is held at the opening of the box in the diagram, smoke moves in the direction indicated. What is responsible for the movement of the smoke?

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

Aconvection

Bmovement of free electrons

Cradiation

Dvibration of molecules

✓ Correct answer

A: convection

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2018 Paper 1 Variant 1, question 20.

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