A technician tests a compression spring used in a foot-pedal return mechanism.
In the equation F=keF = keF=ke, e e\,e can be the compression of a spring.
| Force in N | Compression in mm |
|---|---|
| 0.0 | 0 |
| 2.0 | 5 |
| 4.0 | 10 |
| 6.0 | 15 |
| 8.0 | 24 |
State the name of the limit that is exceeded between 6.0 N and 8.0 N.
Explain why the spring cannot be represented by one value of k k\,k for all the readings in the table.
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.