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. Which of the following temperature is NOT possible?

$-142^{\circ} \text{C}$

$758^{\circ} \text{C}$

$65^{\circ} \text{C}$

$-324^{\circ} \text{C}$

2. 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?

The jam melts.

The lid expands.

The glass expands.

The air pressure in the jar falls.

3. A copper rod is heated at one end.

Which statement describes how heat transfer occurs in the copper?

Energetic free electrons move from the hotter end to the cooler end.

Energetic copper molecules move from the cooler end to the hotter end.

Energetic copper molecules move from the hotter end to the cooler end.

Energetic free electrons move from the cooler end to the hotter end.

4. Fillings in teeth should be made from a material which ___________ .

does not expand when heated.

expands less than the tooth when heated.

expands more than the tooth when heated.

expands by the same amount as the tooth when heated.

5. The diagram shows four similar cans. Each can contains the same volume of water initially at $80^{\circ}C$. After five minutes, which can will contain the coolest water?

B

C

A

D

6. A student is given a thermometer that reads $1^{\circ}C$ in pure melting ice and $101^{\circ}C$ in pure boiling water. She uses it to measure the temperature of some water before and after it is heated.

The increase in temperature of the water calculated from her results is

$1^{\circ}C$ too high

$1^{\circ}C$ too low

$2^{\circ}C$ too low

Correct

7. Many gas appliances such as ovens and heaters use a small flame to ignite the main burner.

In order to make sure that the small flame is burning, a temperature-measuring device is inserted into the flame.

What is the most suitable device to use?

a water manometer

a mercury manometer

a thermocouple thermometer

a clinical thermometer

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

Which statement best describes the conduction of heat through the metal?

Free electrons vibrate and pass energy to free electrons further along the rod.

Atoms vibrate and hit atoms at the cold end.

Atoms move from the hot end and hit electrons at the cold end.

Free electrons move from the hot end and hit atoms further along the rod.

9. The diagram shows a cross-section through a rain-water puddle formed in a shallow hole in a road surface.

Over a period of time, air temperature, wind speed and win direction remains constant.

What happens to the rate of evaporation of water from the puddle?

It increases, because the puddle gets shallower.

It remains constant.

It decreases, because the surface area decreases.

It increases, because the surface area decreases.

10. What will not affect the rate of evaporation from the surface of a liquid?

Surface area of the liquid

Draughts above the surface of the liquid

Depth of the liquid

Temperature of the liquid

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