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 manometer is connected to a gas supply.

pressure qn 2Pressure can be measured in cm of water.

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

pressure qn 1What is the pressure it exerts on the ground?
3. Bubbles of gas, escaping from the mud at the bottom of a deep lake, rise to the surface.

bubbles in pondAs the bubbles rise, they get larger.

Why is this?
4. Which would be the least likely to sink into soft ground?
5. 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?
6. 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?
7. The diagram shows a simple mercury barometer. Which height is a measure of the atmospheric pressure?

pressure qn
8. CYLINDERThe diagram above shows a cylindrical container with diameter 0.5 m containing a liquid of density 750 $kg \, m^{-3}$. Find the pressure exerted by the liquid on the base of the container.
9. 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
10. A manometer is connected to a gas supply.

manometer qnPressure can be measured in cm of water.

What is the pressure of the gas?

 

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