A-LevelPhysicsForces, density and pressureOct/Nov 2023Paper 1 Q131 Mark
The diagram shows an experiment to determine the force exerted on a ball by a horizontal air flow. [Figure 13.1] The ball is suspended by a light string and weighs 0.15 N. The deflection of the string from vertical is 30°. The ball is in equilibrium. What is the force on the ball from the air flow?
A0.075 N
B0.087 N
C0.26 N
D0.30 N
✓ 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...
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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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