A-LevelPhysicsForces, density and pressureOct/Nov 2009Paper 1 Q181 Mark
A rectangular metal bar exerts a pressure of 15 200 Pa on the horizontal surface on which it rests. If the height of the metal bar is 80 cm, what is the density of the metal?
A190 kg m⁻³
B1900 kg m⁻³
C19 000 kg m⁻³
D190 000 kg m⁻³
✓ 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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