A self-closing gate uses a spring. As the gate opens, the spring is stretched and remains in its linear region.
| Gate position | Spring extension in m\mathrm{m}m | Force exerted on the spring in N\mathrm{N}N |
|---|---|---|
| Partially open | 0.018 | 54 |
| Fully open | 0.030 | not measured |
Calculate the work done on the spring as the gate moves from partially open to fully open.
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.