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GCSE Questions - Hooke's Law

Q4. The diagram shows a child on a playground toy.

(a) The springs have been elastically deformed.

Explain what is meant by 'elastically deformed'.

[2 marks]

(b) Meghan investigated the relationship between the force applied to a spring and the extension of the spring. The graph below shows the results.

(a) Use the graph to determine the spring constant of the spring.

[4 marks]

(b) Meghan concluded: ‘The extension of the spring is directly proportional to the force applied to the spring.’ Explain how the graph supports the her conclusion.

[2 marks]

(c) She repeated the investigation using a different spring - one with a spring constant of 13 N/m. Calculate the elastic potential energy of this spring when its extension was 20 cm.

[3 marks]

(d) Describe a method Meghan could have used to obtain the results given in the graph above.

You should include a risk assessment for one hazard in the investigation.

Your answer may include a diagram.

[6 marks]

(Total 17 marks)