# 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. The diagram shows a manometer containing mercury that is sealed at one end.

What happens to the distance h when the manometer is taken to the top of a mountain?
2. A gas occupies a volume of $2.0 \text{ m}^{3}$ in a cylinder at a pressure of 240 kPa. A piston compresses the gas until the volume is $0.50 \text{ m}^{3}$, the temperature remaining constant.

What is the new pressure of the gas?
3. A small table weighing 40 N stands on four legs, each having an area of $0.001 \text{ m}^{2}$. What is the pressure of the table on the floor?
4. An air bubble is inside a air-tight cylinder fitted with a piston. What happens to the air bubble when the piston is pushed in? Note that the air bubble is surrounded by air in the cylinder. Assume that the there is still enough space for the air bubble to "survive" after the piston is pushed in.
5. 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?

6. Which would be the least likely to sink into soft ground?
7. A block of wood measuring 5 m long, 4 m wide and 0.5 m thick is placed on a table. Find the pressure exerted on the table due to the block if the mass of the block is 4000 kg.
8. The diagram shows a simple mercury barometer. Which height is a measure of the atmospheric pressure?

9. Find the pressure exerted on a person by a few plastic blocks of total mass 42 kg, the bottom of which in contact with the person has an area of 840 $cm^{2}$.
10. 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 $cm^{2}$.

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### 18 thoughts on “Practice MCQs For Pressure”

1. How The question no.6 answer is 2000 pascal?
Its supposed to be 200 pascal, with the rule .
P=F/A
P=4000/5×4
= 4000/20
=200.

How 2000?

• m=4000kg
P=mg/A
P=4000*10/5*4
P=2000

2. Can anyone explain me that how the answer of mcq no7 is p/3

• idk either

• Height of the liquid column increased by 40 cm, which means new height is 60 cm. volume increases 3 times, which in turn makes the pressure decrease to 1/3 so answer is p/3

3. how can i get the answers….

4. I think here, in question 9 the answer (a) shall be
5.0 x 10^-3
5.0 x 10^3

• Can you show how you arrive at $5.0 \times 10^{-3}$?

• its 5.0 x 10^4

5. physics

• same bro

6. How can i get the answers of this quiz

• @Aisha
You have to answer the quiz and you will get the correct answers upon the submission of the answers you gave to the questions.

• Click on “I am not a robot” which is at the bottom section of the page.
Then click “Submit”.
And the checked page will be opened.