A-LevelPhysicsWork, energy and powerFeb/Mar 2022Paper 1 Q171 Mark
A rock of mass 40 kg is released from rest from a height of 20 m above the surface of a planet. The rock has a kinetic energy of 32 kJ when it hits the surface of the planet. The planet does not have an atmosphere. What is the weight of the rock on the surface of the planet?
A1.6 N
B390 N
C1.6 kN
D64 kN
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The correct answer is C. 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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