Physics · May / June 2020 · Paper 12 · Question 26
5054Thermal expansion of solids, liquids and gases
What always happens when the temperature increases?
- AA gas at constant pressure expands.
- BA metal rod becomes longer, but its volume remains constant.
- CA liquid contracts and then expands.
- DThe hole in the centre of a metal disc becomes smaller.
As printed in the paper
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Correct answer: A. A gas at constant pressure expands.
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