A-LevelPhysicsDeformation of solidsOct/Nov 2016Paper 1 Q211 Mark
Which force-extension graph shows plastic deformation of a sample of material?
A[Diagram option A: Force-extension graph showing linear elastic deformation and unloading]
B[Diagram option B: Force-extension graph showing elastic deformation beyond linear region, then unloading along the same path]
C[Diagram option C: Force-extension graph showing plastic deformation with a different unloading path]
D[Diagram option D: Force-extension graph showing plastic deformation with elastic unloading, resulting in permanent extension]
✓ Correct Answer
The correct answer is D. 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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