A-LevelPhysicsDynamicsOct/Nov 2022Paper 1 Q111 Mark
Two solid spheres form an isolated system. Sphere X moves with speed 6 cms¯¹ in a straight line directly towards a stationary sphere Y, as shown. [Figure showing sphere X moving towards sphere Y] The spheres have a perfectly elastic collision. After the collision, sphere X moves with speed 2 cm s¯¹ in the same direction as before the collision. What is the speed of sphere Y?
A2 cms-1
B4 cms-1
C6 cms-1
D8 cms-1
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The correct answer is D. This question tests the candidate's understanding of dynamics 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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