A-LevelPhysicsForces, density and pressure9702/12 · Oct/Nov 2023 · Q141 Mark
Two solid cylindrical objects X and Y are held fully submerged in a liquid, as shown. [Figure 14.1] The objects have the same volume. The density of the material of Y is twice the density of the material of X. Both objects are stationary. Which statement is correct?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
AThe force due to the liquid acting on the top surface of X is greater than that acting on the top surface of Y.
BThe pressure difference due to the liquid between the top and bottom surfaces of X is the same as that for Y.
CThe upthrust acting on X is the same as the upthrust acting on Y.
DThe weight of X is the same as the weight of Y.
✓ Correct answer
C: The upthrust acting on X is the same as the upthrust acting on Y.
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