A-LevelPhysicsForces, density and pressureMay/June 2022Paper 1 Q121 Mark
A uniform rod is attached by a hinge at one end to a wall. The other end of the rod is supported by a wire so that the rod is horizontal and in equilibrium. [Figure 12.1] Which arrow shows the direction of the force on the rod from the hinge?
A[Arrow pointing vertically upwards]
B[Arrow pointing vertically downwards]
C[Arrow pointing downwards and to the left]
D[Arrow pointing upwards and to the left]
✓ Correct Answer
The correct answer is D: [Arrow pointing upwards and to the left]
📋 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...
🎯 Mark Scheme Breakdown
Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.
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