A-LevelPhysicsDynamicsFeb/Mar 2019Paper 1 Q101 Mark
Two balls, of masses m and 2m, travelling in a vacuum with initial velocities 2v and v respectively, collide with each other head-on, as shown. [Figure 10.1] After the collision, the ball of mass m rebounds to the left with velocity v. What is the loss of kinetic energy in the collision?
A½ mv²
B¾ mv²
Cmv²
D²⁄₃ mv²
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The correct answer is C. 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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