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Pearson Edexcel International GCSE (9–1) · PHYSICS · Chapter

Units (Solids, Liquids and Gases)

69 practice questions

Start practising (36 questions)

Topics covered

Practice questions

11–20 of 36 · Normal

  1. Question 11

    2 marks · Normal

    Explain why a drawing pin can be pushed into wood much more easily than a thumb, even if the same force is applied.

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  2. Question 12

    3 marks · Normal

    A metal object with a flat base is placed on the ground.

    (a)

    The object exerts a force of 180 N over a contact area of 0.060 m^2. Calculate the pressure on the ground.

    [2 marks]
    (b)

    State the SI unit for pressure.

    [1 mark]
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  3. Question 13

    3 marks · Normal

    Describe a method you would use in the laboratory to determine the pressure exerted by a shoe on the ground. Include details of the measurements you would take.

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  4. Question 14

    1 mark · Normal

    Which of the following would increase the pressure exerted by a box on the floor, assuming its weight stays the same?

    1. A.Increasing the contact area of the box with the floor
    2. B.Placing a heavier object on top of the box
    3. C.Decreasing the contact area of the box with the floor
    4. D.Using a rough surface for the floor
    Answer and check →

  5. Question 15

    3 marks · Normal

    A man stands on one foot. His mass is 72 kg. The area of the sole of his foot is 0.032 m^2. Calculate the pressure he exerts on the floor. Take g = 10 N/kg.

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  6. Question 16

    2 marks · Normal

    Table showing force and area for four objects on the ground.
    ObjectForce (N)Area (m^2)
    A5002.0
    B4001.0
    C8004.0
    D9003.0

    Which object exerts the greatest pressure on the ground? Show how you decided.

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  7. Question 17

    4 marks · Normal

    A diver is swimming 15 m below the surface of a lake. The density of water is and gravitational field strength is .

    (a)

    Calculate the pressure due to the water at this depth.

    [2 marks]
    (b)

    Explain why the pressure is the same in all directions at this depth.

    [2 marks]
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  8. Question 18

    2 marks · Normal

    Explain why the pressure on your body from the atmosphere does not crush you.

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  9. Question 19

    2 marks · Normal

    A steel block has a mass of 24 kg and is in contact with the ground over an area of 0.06 m². Calculate the pressure it exerts on the ground. (Take ).

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  10. Question 20

    1 mark · Normal

    Which change will increase the pressure beneath a liquid surface the most?

    1. A.Increasing the depth of the liquid
    2. B.Decreasing the density of the liquid
    3. C.Reducing gravitational field strength
    4. D.Reducing the area under consideration
    Answer and check →