# Practice MCQs For Thermal Physics

This quiz contains practice questions for GCE ‘O’ level topic: Thermal Physics. There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

The quiz comprises of 10 questions, which are randomly selected from a large pool of questions. After completion, you can refresh the page and try the quiz again for a new set of 10 questions.

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1. A rod of metal is heated at one end.

Which statement best describes the conduction of heat through the metal?
2. A student investigates changes that may take place as sulphur solidifies. Which of the following correctly describes these changes?
3. A gas is enclosed in a container of fixed volume. It gains heat energy from an external source.

What happens to the molecules of the gas?
4. An axle is too large to fit into the hole in a wheel that is made of the same metal.

How can the axle be made to fit into the hole?
5. How can the sensitivity of a liquid-in-glass thermometer be increased?
6. A new liquid is tested to decide whether it is suitable for use in a liquid-in-glass thermometer.

It is found that the liquid does not expand uniformly with temperature.

What will be the effect of this on the scale of the thermometer?
7. A person cannot unscrew the lid of a jar of jam. He finds that the lid can be unscrewed after it has been held under hot, running water for a few seconds.

Why is this?
8. A 200 g mass of copper is heated for 40 s by a heater that produces 3000 J/min.

The specific heat capacity of copper is 400 J/(kg K).

What is the rise in temperature?
9. The diagram shows a liquid-in-glass thermometer.

At $0^{\circ}\text{C}$, the length of the liquid column is 2.0 cm. At $100^{\circ}\text{C}$, the length of the liquid column is 22.0 cm.

What is the length of the liquid column at $40^{\circ}\text{C}$?
10. A copper rod is heated at one end.

Which statement describes how heat transfer occurs in the copper?

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