Physics (AS & A Level) · Oct / Nov 2017 · Paper 11 · Question 20
9702Elastic and plastic behaviour
A spring is loaded with weights. When the weights are removed, the spring returns to its original length. The spring is then loaded with heavier weights. When the weights are removed, the spring is longer than it was originally. Which types of deformation are shown by this experiment?
- Aboth elastic and plastic deformation
- Belastic deformation only
- Cneither elastic nor plastic deformation
- Dplastic deformation only
As printed in the paper
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Correct answer: A. both elastic and plastic deformation
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