A-LevelPhysicsDeformation of solids9702/12 · Feb/Mar 2021 · Q201 Mark
A wire is stretched by applying increasing values of force F. For each value of force applied, the extension x is recorded. A force-extension graph is plotted from the data obtained. Which statement about the area under the graph must be correct?
AIt can be calculated as ½Fx.
BIt is the elastic potential energy stored in the stretched sample.
CIt is the work done in stretching the sample.
DIt would be the same for any wire of the same material.
✓ Correct answer
C: It is the work done in stretching the sample.
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