A-LevelPhysicsWork, energy and powerMay/June 2025Paper 1 Q191 Mark
A box of mass 4.9kg is pushed at a constant velocity from point P at the bottom of an inclined plane to point Q at the top. The box is pushed by a force of 64 N acting parallel to the slope. The slope is inclined at an angle of 20° to the horizontal and the box moves through a vertical height of 5.8 m. [Diagram shows a box on an inclined plane. Force 64 N acts parallel to the slope. Vertical height 5.8 m and angle 20° are shown.] What is the work done against the frictional force acting on the block between P and Q?
A280 J
B810 J
C960 J
D1100 J
✓ Correct Answer
The correct answer is B. 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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