A-LevelPhysicsDeformation of solidsFeb/Mar 2016Paper 1 Q181 Mark
A metal wire is stretched by a load. The force-extension graph is shown. [Figure 18.1] What is represented by the area under the whole graph?
Athe change in gravitational potential energy of the wire
Bthe energy that would be released from the wire if the final load was removed
Cthe energy transferred into heat energy in the wire
Dthe work done in stretching the wire
✓ 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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