A-LevelPhysicsForces, density and pressureOct/Nov 2009Paper 1 Q111 Mark
The diagrams show two ways of hanging the same picture. [Figure 11.1] In both cases, a string is attached to the same points on the picture and looped symmetrically over a nail in a wall. The forces shown are those that act on the nail. In diagram 1, the string loop is shorter than in diagram 2. Which information about the magnitude of the forces is correct?
AR₁ = R₂; T₁ = T₂
BR₁ = R₂; T₁ > T₂
CR₁ > R₂; T₁ < T₂
DR₁ < R₂; T₁ = T₂
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The correct answer is B. 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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