(a)[1]
Explain why the cylinder floats.
(b)[4]
Calculate the force on the bottom of the cylinder caused by the depth of the seawater.
(c)[2]
Deduce the weight of the cylinder. Explain your answer.
Physics 0625 · IGCSE · Pressure
Pressure — practice question
Fig. 2.1 illustrates a hollow metal cylinder that contains air and is floating in the sea.
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This 7-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The average/overall/combined density of the metal together with the air inside is lower than the density of sea water” …
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