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 statements is true in relation to the transfer of energy?

During heating and cooling, energy always flows from a body with more energy to a body with less energy.

During heating and cooling, energy always flows from a body of high temperature to a body of low temperature.

During heating and cooling, temperature always flows from a body with high temperature to a body with low temperature.

During heating and cooling, energy always flows from a body of low temperature to a body of high temperature.

2. A student investigates changes that may take place as sulphur solidifies. Which of the following correctly describes these changes?

no transfer of energy, but a change in temperature

a transfer of energy, but no change in temperature

a transfer of energy and a change in temperature

no transfer of energy and no change in temperature

3. Heat energy is supplied at the same rate to 100 g of paraffin and to 100 g of water in similar containers.

Why does the temperature of the paraffin rise more quickly?

The paraffin has a larger specific heat capacity than water.

The paraffin has a smaller specific heat capacity than water.

The paraffin is less dense than water.

The paraffin is more dense than water.

4. 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?

Evaporation only

Solidification and evaporation

Boiling and evaporation

Condensation only

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

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

Atoms vibrate and hit atoms at the cold end.

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

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

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

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

a liquid or a solid, but not a gas.

a gas, but not a liquid or solid.

a gas or a liquid, but not a solid.

a gas or a solid, but not a liquid.

7. 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.

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

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

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

The thermometer is sterilized in boiling water.

The thermometer has a large bulb.

9. As water solidifies to ice, its temperature:

stays constant and no energy is lost

decreases and energy is lost

increases and energy is lost

stays constant and energy is lost

10. 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?

The markings are too close together.

The markings are too far apart.

It is not linear.

It has a short range.

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