O-LevelPhysicsThermal Physics5054/11 · Oct/Nov 2019 · Q221 Mark

A metal rod is heated. What happens to the rod?

AIts density decreases and its mass decreases.

BIts density decreases and its volume increases.

CIts density increases and its mass decreases.

DIts density increases and its volume increases.

✓ Correct answer

B: Its density decreases and its volume increases.

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Topic: Thermal Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2019 Paper 1 Variant 1, question 22.

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