A-LevelPhysicsDeformation of solidsMay/June 2023Paper 1 Q191 Mark
A child holds a thin metal wire that is attached to a kite. The graph shows how the extension of the wire varies with its tension. [Figure 19.1] A gust of wind increases the tension from 100 N to 150 N. What is the change in the elastic potential energy of the wire caused by the gust of wind?
A3.8 mJ
B19 mJ
C34 mJ
D38 mJ
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The correct answer is B. This question tests the candidate's understanding of deformation of solids 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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