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15.1 Forces and springs

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Question 44

A spring obeys Hooke's law. The work done in stretching it from zero extension to $x\,$ is $W$ . How much additional work is needed to increase its extension from $x\,$ to $2 x$ ?

[1]

$2 W$

$4 W$

$W$

$3 W$

Markscheme

15.1 Forces and springs Questions

GCSE
Physics
15.1 Forces and springs

102 exam-style questions on Edexcel GCSE Physics 15.1 Forces and springs, covering 15.1.1 Elastic and inelastic distortion, 15.1.2 The spring constant, 15.1.3 Work done in stretching a spring, and 15.1.4 Linear and non-linear force–extension. Each one has a worked solution and a mark scheme showing where the marks go.

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