Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 21
9702Elastic and plastic behaviour
What is an example of plastic deformation?
- AA rubber ball is momentarily compressed every time it hits the ground.
- BA spoon stirring some coffee in a ceramic mug hits its surface and makes a clinking sound.
- CA toolbox is left on a horizontal plank. When the toolbox is removed, the plank is no longer straight.
- DThe spring in some bathroom weighing scales is compressed by a person standing on the scales.
As printed in the paper
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Correct answer: C. A toolbox is left on a horizontal plank. When the toolbox is removed, the plank is no longer straight.
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