A-LevelPhysicsForces, density and pressureMay/June 2025Paper 1 Q161 Mark
A block is submerged vertically in a liquid. The four diagrams show the block viewed from the side. Which diagram shows, to scale, the forces exerted on equal areas of the block by the liquid?
ADiagram A shows perpendicular forces increasing with depth on vertical sides and uniform forces on horizontal sides.
BDiagram B shows uniform perpendicular forces on vertical sides.
CDiagram C shows forces not perpendicular to the surfaces.
DDiagram D shows perpendicular forces but not scaled correctly.
✓ Correct Answer
The correct answer is A. 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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