O-LevelPhysicsThermal Physics5054/12 · Oct/Nov 2016 · Q191 Mark

A piece of paper torn out of an exercise book is shown. The text on the paper reads: 'and some of the particles at the surface gain so much kinetic energy that they break free and take the energy away with them.' Which process is being described?

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.

Aconduction

Bconvection

Cevaporation

Dradiation

✓ Correct answer

C: evaporation

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2016 Paper 1 Variant 2, question 19.

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