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15.1 Forces and springs

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Question 39
F

A spring has a spring constant of 80 N/m. It is stretched by 0.050 m within its linear range. Use E=12kx2\displaystyle E=\frac{1}{2}kx^2E=21​kx2. What is the work done in stretching the spring?

[1]
A

0.10 J0.10\ \mathrm{J}0.10 J

B

4.0 J4.0\ \mathrm{J}4.0 J

C

2.0 J2.0\ \mathrm{J}2.0 J

D

0.20 J0.20\ \mathrm{J}0.20 J

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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