# 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 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. The specific latent heat of vaporization of water is about 6.7 times than that of the specific latent heat of fusion of water. What is the ratio of the latent heat of vaporization of 6.7 kg of water compared to the latent heat of fusion of 1 kg of water?

3. 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?

4. 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?

5. In very cold weather, ice can form on the surface of puddles of water because the air temperature is below that of the water. If the ice layer is found to be thickening at its lower surface, then most of the transfer of energy must be by:

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

7. A hot liquid is poured into a beaker. The graph shows how the temperature of the liquid changes as it cools towards room temperature.

What is occurring at region X?

8. In an oil refinery, petrol storage tanks are painted with light colour to reduce

9. In a Brownian motion experiment involving smoke particles in air, heavy smoke particles settle quickly but very small smoke particles remain suspended for long periods of time.

Which statement explains why the small smoke particles do not settle?

10. Which of the following temperature is NOT possible?

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### 7 thoughts on “Practice MCQs For Thermal Physics”

1. when i am submitting my paper it is giving error and it happened three times.Please fix it

• It should be fixed.

2. How do we know the correct answer to the ones we have answered wrong?