A-LevelPhysicsForces, density and pressureMay/June 2025Paper 1 Q171 Mark
The diagram shows a couple. [Diagram shows two parallel forces of equal magnitude acting in opposite directions, separated by a perpendicular distance.] How is the torque of the couple calculated?
A1/2 × perpendicular distance between the forces × magnitude of one of the forces
Bperpendicular distance between the forces × magnitude of one of the forces
Cperpendicular distance between the forces × magnitude of the sum of the forces
D2 × perpendicular distance between the forces × magnitude of one of the forces
✓ 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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