A spring fitted inside a self-closing gate has an original length of 0.240 m and a spring constant of 220 N/m.
The spring remains below its limit of proportionality in both positions.
| Position of gate | Length of spring in m |
|---|---|
| Partly open | 0.180 |
| Fully open | 0.150 |
Calculate the increase in the force applied to the spring when the gate moves from partly open to fully open.
106 exam-style questions on AQA GCSE Physics 5.3 Forces and elasticity, covering 5.3 Forces and elasticity. Each one has a worked solution and a mark scheme showing where the marks go.