A-LevelPhysicsDeformation of solidsOct/Nov 2011Paper 1 Q211 Mark
The graph shows the relationship between stress and strain for three wires of the same linear dimensions but made from different materials. [Figure 21.1] Which statements are correct? 1 The extension of P is approximately twice that of Q for the same stress. 2 The ratio of the Young modulus for P to that of Q is approximately two. 3 For strain less than 0.1, R obeys Hooke's law.
A1, 2 and 3
B1 and 3 only
C2 and 3 only
D2 only
✓ Correct Answer
The correct answer is C. This question tests the candidate's understanding of deformation of solids within the Physicssyllabus. The examiner's mark scheme requires...
📋 Examiner Report & Trap Analysis
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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