A-LevelPhysicsForces, density and pressureFeb/Mar 2025Paper 1 Q131 Mark
The diagram shows a uniform plank XY of length 4.0 m and weight 300 N. [Figure 13.1] The plank rests on fixed supports at its ends X and Y. A child of weight 600 N stands in different positions on the plank. The support at end X exerts a force F vertically upwards on the plank. What is the magnitude of F when the child stands at X and when the child stands at Y?
A600 0
B600 150
C750 0
D750 150
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The correct answer is D. This question tests the candidate's understanding of forces, density and pressure within the Physicssyllabus. The examiner's mark scheme requires...
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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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