A-LevelPhysicsForces, density and pressureOct/Nov 2021Paper 1 Q151 Mark
A metal cylinder, totally immersed in water, is hung from a newton meter. [Figure 15.1] The cylinder, of height L, is slowly raised vertically by lifting the newton meter. As the base of the cylinder moves from line X in the water to line Y above the surface of the water, the reading R on the newton meter is recorded. The velocity of the cylinder is constant. Which graph best shows the variation of R with the distance d of the base of the cylinder from line X?
A[Graph A]
B[Graph B]
C[Graph C]
D[Graph D]
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of forces, density and pressure within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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