Physics (AS & A Level) · May / June 2022 · Paper 11 · Question 20
9702Elastic and plastic behaviour
Which statement about elastic and plastic deformation must be correct?
- AElastic deformation and plastic deformation are proportional to the applied force.
- BElastic deformation and plastic deformation cause no change in volume.
- CElastic deformation causes heating of the material but plastic deformation does not.
- DElastic deformation is reversible but plastic deformation is not.
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Correct answer: D. Elastic deformation is reversible but plastic deformation is not.
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