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15.1 Forces and springs

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Question 38
H

A spring stores 0.36 J when extended by 0.060 m. The spring obeys Hooke's law. Use E=12kx2\displaystyle E=\frac{1}{2}kx^2E=21​kx2 and F=kxF=kxF=kx. What force is required to produce an extension of 0.090 m?

[1]
A

18 N18\ \mathrm{N}18 N

B

12 N12\ \mathrm{N}12 N

C

27 N27\ \mathrm{N}27 N

D

6.0 N6.0\ \mathrm{N}6.0 N

Markscheme

15.1 Forces and springs Questions

  1. GCSE
  2. /Physics
  3. /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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