O-LevelPhysicsForces5054/12 · Oct/Nov 2021 · Q101 Mark
Piston X is pushed into a hydraulic cylinder. Piston X produces a pressure Px in the liquid in the cylinder. The diagram shows the cylinder viewed from above. There are two other pistons, Y and Z, in the cylinder. The pressures on piston Y and Z are Py and Pz. What is the relationship between Px, Py and Pz?
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.
APx = PY + Pz
BPx > Pz > PY
CPx < Pz < PY
DPx = PY = Pz
✓ Correct answer
D: Px = PY = Pz
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