Practice MCQs For Pressure

This quiz contains practice questions for GCE ‘O’ level topic: Pressure. 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 barometer is carried up on a balloon. Why does the reading on the barometer fall?
2. Which would be the least likely to sink into soft ground?
3. The diagram shows a manometer containing mercury that is sealed at one end.

manometer to top of mountainWhat happens to the distance h when the manometer is taken to the top of a mountain?
4. Which of the following will cause the height of the mercury column in a barometer, A, to be higher than  that of another barometer, B, located at sea level?
5. If the pressure exerted on a floor by a box is 200 kPa, find the weight of the box, given that the bottom of the box has a contact area of 20 $cm^{2}$.
6. Air is trapped in a cylinder by a piston. The pressure of the air is $\rho$ and the length of the air column is 20 cm.

The piston is moved outwards until the length of the air column has increased by 40 cm.

The temperature of the air remains constant.

What is the new air pressure?
7. The diagram shows a simple mercury barometer. Which height is a measure of the atmospheric pressure?

pressure qn
8. Four different liquids are poured into identical measuring cylinders. The diagrams show the depths of the liquids and their densities.

Which liquid causes the largest pressure on the base of its measuring cylinder?

pressure at base of cylinder
9. A manometer is connected to a gas supply.

manometer qnPressure can be measured in cm of water.

What is the pressure of the gas?
10. A brick of weight 80 N stands upright on the ground as shown.

pressure qn 1What is the pressure it exerts on the ground?


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