O-LevelPhysicsThermal Physics5054/11 · May/June 2017 · Q251 Mark

There is a tight metal lid on a glass jar. The lid is loosened by pouring hot water over it. Which physics property explains this?

Aconvection

Bevaporation

Cexpansion

Dradiation

✓ Correct answer

C: expansion

Oracle Prep sorts past-paper questions by topic, so you can drill Thermal Physics and see which topics are most likely to come up next.

Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2017 Paper 1 Variant 1, question 25.

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