HOOKE'S LAW

1 mark · Easy

Give one example of a material that is elastic and one example of a material that is not elastic, explaining your choices.

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Elastic: Rubber band (returns to original shape after stretching). Not elastic: Modelling clay (does not return to original shape).

Also accept: Elastic: spring; Not elastic: putty, plasticine, wet clay, soft wax

Common mistakes: Confusing elasticity with strength.

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Marking points

B1 · 1 mark · One correct example and supporting explanation for each (elastic and not elastic).

Worked solution

A rubber band is elastic because it returns to its original shape after stretching. Modelling clay is not elastic because it stays deformed after being shaped.