A-LevelPhysicsForces, density and pressureMay/June 2011Paper 1 Q151 Mark
The diagrams all show a pair of equal forces acting on a metre rule. Which diagram shows forces that provide a couple and zero resultant force?
ATwo equal and opposite forces applied at the same point on the rule, vertically.
BTwo equal and opposite forces applied at different points on the rule, perpendicular to the rule.
CTwo equal and opposite forces applied at different points on the rule, acting vertically.
DTwo equal forces applied at different points on the rule, parallel and in the same direction.
✓ Correct Answer
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...
📋 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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