Pressure (Cambridge O Level Physics)

Exam Questions

2 hours33 questions
1
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A woman is in contact with the floor.

q1-easy-mcq-1-9-pressure-cie-igcse-physics

In which of these poses does she produce the most pressure on the floor?

  • A

  • B

  • C

  • D

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2
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Which is an example of a force acting over a small area to produce a large pressure?

  • A skier wearing large skis on snow.

  • A hammer being used to push a nail into a piece of wood.

  • A tractor having very wide tyres.

  • A person lying down, rather than walking upright on a roof.

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3
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A water-filled tank is resting on a table as shown in Fig. 1

1-9-3-e--pressure-tank-water

Using the measurements in the diagram, determine the area which should be used to calculate the pressure the tank exerts on the table.

  • 0.25 m2 

  • 0.5 m2 

  • 0.75 m2 

  • 1.0 m2 

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The diagram shows four measuring identical cylinders containing either distilled water or concentrated sugar solution.

Which measuring cylinder has the least pressure at the base, due to the liquid?

1-9-4-e-pressure-liquid-measuring-cylinders

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    Extended

    For the tank of water in the diagram below, which value gives the pressure on the base of the tank due to the water?

    The density of water = 1000 kg/m3

    1-9-5-e-pressure-liquid-tank-of-water-e

    • 5000 Pa

    • 5500 Pa

    • 6000 Pa

    • 6500 Pa

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    A briefcase, with flat, rectangular sides rests on the floor as shown in the diagram.

    q1-medium-1-mcq-1-9-pressure-cie-igcse-physics

    The briefcase is now turned so that it rests with its large, flat side on the floor.

    q1-medium-2-mcq-1-9-pressure-cie-igcse-physics

    How has the change affected the force on the floor, and the pressure exerted by the briefcase on the floor?

     

    Force

    Pressure

    A

    unchanged

    decreased

    B

    unchanged

    unchanged

    C

    decreased

    decreased

    D

    decreased

    unchanged

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      A small metal block is suspended under the surface of a beaker of water by a string. 

      The metal block experiences a pressure exerted by the liquid.

      q2-medium-mcq-1-9-pressure-cie-igcse-physics

       What would increase the pressure exerted on the metal block?

      • increasing the surface area of the stone

      • using a liquid with a lower density

      • increasing the mass of the metal block

      • lowering the metal block deeper into the liquid

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      3
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      A wooden block rests on a table.

      q3-medium-mcq-1-9-pressure-cie-igcse-physics

      On which surface should the block be laid to produce the largest pressure on the table?

      • A

      • B

      • C

      • Any side, they will all produce the same pressure

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      4
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      For the tank of water in the diagram below, which value gives the pressure on the base of the tank due to the water?

      The density of water = 1000 kg/m3

      1-9-4-m-pressure-liquid-tank-of-water-m

      • 6500 Pa

      • 6900 Pa

      • 7400 Pa

      • 7900 Pa

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      5
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      What pressure does the object in the diagram below exert on the ground beneath it?

      1-9-5-m-pressure-block

      •  4.0 Pa

      • 6.0 Pa

      • 12 Pa

      • 24 Pa

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      6
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      Which expression for pressure is correct?

      • force × area

      • force ÷ area

      • mass × area

      • mass ÷ area

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      7
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      At a depth d in sea-water, the total pressure experienced by a diver is 2P, where P is atmospheric pressure. 

      At which depth is the pressure 4P

      • 1.5d

      • 2d

      • 3d

      • 4d

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      Mercury is a liquid. The diagram shows a simple mercury barometer.

      Which height is a measure of the atmospheric pressure?

      q13-cie-ol-physics-specimen-paper-1-mcq

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        The table gives four combinations of the force applied to a surface and the area over which it acts.

        Which row gives the smallest pressure exerted on the surface?

         

        Force / N

        Area / m2

        A

        40

        0.5

        B

        40

        2.0

        C

        80

        0.5

        D

        80

        2.0

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          Three beakers of water are placed on a table. The depth of water in each container is the same.

          q2-hard-mcq-1-9-pressure-cie-igcse-physics

          In which container does the water exert the greatest pressure on the base of the container?

          • A

          • B

          • C

          • None, the pressure is the same in all three.

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          A person walking through snow sinks into it.

          The person makes a change so that they do not sink as far next time they go out.

          What do they do?

          • Crouch as they walk to lower their centre of mass

          • Run as fast as they can to increase the power they dissipate

          • Wear shoes with a much larger area on the bottom to increase the area of their feet in contact with the snow

          • Wear a heavy backpack to increase their weight and so make them more stable .

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          There is a significant risk to submarines which dive to very great depths.

          Why is it dangerous to do this?

          • The temperature of water is too low at greater depths.

          • The density of water is less at greater depths

          • The pressure is too great at greater depths.

          • The gravitational pull increases at greater depths

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          The ornament in Fig. 1 is designed to balance in either of the positions shown.

          Calculate the difference in the pressure on the ground when the ornament's position is changed.

          1-9-5-h-pressure-ornament

          • 1000 Pa

          • 1250 Pa

          • 1500 Pa

          • 2000 Pa

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