O-LevelPhysicsThermal Physics5054/11 · Oct/Nov 2024 · Q231 Mark

Thermal energy is supplied at a constant rate to a fixed mass of a substance that is initially solid. The graph shows how the temperature of the fixed mass of the substance varies with time.. In which sections of the graph does the substance absorb latent heat?

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AW and X

BW and Y

CX and Z

DY and Z

✓ Correct answer

C: X and Z

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2024 Paper 1 Variant 1, question 23.

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