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 substance that flows under the action of an external pressure may be:

a gas or a solid, but not a liquid.

a gas or a liquid, but not a solid.

a liquid or a solid, but not a gas.

a gas, but not a liquid or solid.

2. Which of the following about clinical liquid-in-glass thermometer is correct?

The range is from $35^{\circ} C$ to $42^{\circ} C$.

The thermometer is sterilized in boiling water.

The thermometer has a large bulb.

The constriction above the bulb is designed to increase the time for mercury to expand.

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?

They move faster inside the container.

They move further apart.

They vibrate with greater frequency.

They expand.

4. 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 remains constant.

It increases, because the surface area decreases.

It increases, because the puddle gets shallower.

It decreases, because the surface area decreases.

5. 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?

by cooling the axle alone

by cooling both the axle and the wheel

by heating both the axle and the wheel

by cooling the wheel alone

6. The fillings for a hole in a tooth should be made from a material that

does not expand when heated.

expands more than the hole in the tooth.

expands by the same amount as the hole in the tooth.

expands less than the hole in the tooth.

7. What is the definition of heat capacity?

the quantity of heat required to change 1 kg of a substance from solid to liquid without a change in temperature

the quantity of heat required to convert an object from solid to liquid without a change in temperature

the quantity of heat required to raise the temperature of an object through $1^{\circ} \text{C}$

the quantity of heat required to raise the temperature of 1 kg of a substance through $1^{\circ} \text{C}$

8. When ice melts to become water, which force must be overcome?

The force between molecules

The attraction between electrons and the nucleus

The attraction between the atoms in a molecule

The force of gravity

9. Which of the following DOES NOT result in faster speed of response of a thermometer?

Using a bore with a larger diameter.

Using mercury instead of alcohol.

Using a bulb with a thinner glass.

Using a smaller bulb.

10. 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?

2.5 K

25 K

250 K

0.25 K

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