HOOKE'S LAW
2 marks · NormalExplain what is meant by the elastic behaviour of a material. Give an example of when this property is useful in everyday life.
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Elastic behaviour means a material returns to its original shape after the forces causing deformation are removed. For example, car suspension springs use this property to absorb bumps and then return to their rest position.
Must show: Definition of elastic behaviour, Real-life example
Common mistakes: Just repeating 'it stretches and goes back' with no context or example
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Marking points
B1 · 1 mark · Clear definition of elastic behaviour (returns to original shape after force removed).
B2 · 1 mark · Relevant example from daily life showing usefulness (e.g., suspension springs, mattresses).
Worked solution
Elastic behaviour is when a material returns to its original shape after the forces deforming it are removed. For example, this is useful in car suspension springs, which absorb shocks and return to their normal shape.