A-LevelPhysicsForces, density and pressureMay/June 2018Paper 1 Q171 Mark
The diagram shows a ball of weight W hanging in equilibrium from a string. [Diagram] The string is at an angle θ to the vertical. The tension in the string is T. The ball is held away from the wall by a horizontal force P from a metal rod. What is the relationship between the magnitudes of T, P and W?
AP = T cosθ and W = T sinθ
BT = P + W
CT² = P² + W²
DW = P tanθ and W = T cosθ
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The correct answer is C. 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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