A-LevelPhysicsWork, energy and powerOct/Nov 2010Paper 1 Q141 Mark
A box of weight 200 N is pushed so that it moves at a steady speed along a ramp, through a height of 1.5 m. The ramp makes an angle of 30° with the ground. The frictional force on the box is 150 N while the box is moving. [Figure showing a box being pushed up a ramp. Height 1.5 m, angle 30°, weight 200 N.] What is the work done by the person?
A150 J
B300 J
C450 J
D750 J
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The correct answer is D. This question tests the candidate's understanding of work, energy and power 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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