O-LevelPhysicsForces5054/12 · May/June 2014 · Q131 Mark
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?
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.
AIt decreases, because atmospheric pressure decreases with height.
BIt decreases, because atmospheric pressure increases with height.
CIt increases, because atmospheric pressure decreases with height.
DIt increases, because atmospheric pressure increases with height.
✓ Correct answer
A: It decreases, because atmospheric pressure decreases with height.
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