The table gives points on a straight force–extension graph for a spring.
| Extension in cm\mathrm{cm}cm | Force in N\mathrm{N}N |
|---|---|
| 0 | 0 |
| 2.0 | 3.0 |
| 4.0 | 6.0 |
| 6.0 | 9.0 |
The work done is the area under the force–extension graph. What work is done as the extension increases from 2.0 cm to 6.0 cm?
0.12 J0.12\ \mathrm{J}0.12 J
0.36 J0.36\ \mathrm{J}0.36 J
0.27 J0.27\ \mathrm{J}0.27 J
0.24 J0.24\ \mathrm{J}0.24 J
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.