A technician investigates the bending of a thin metal strip supported at both ends. The technician tests the same strip several times, applying a larger downward force to the centre of the strip in each test, to find the largest force that can be applied without leaving the strip bent. After each force is removed, the technician measures the height of the centre of the strip above the bench.
The height before any force is applied is 18.0 cm.
| Maximum force applied in the test in N | Height after the force is removed in cm |
|---|---|
| 15 | 18.0 |
| 25 | 18.0 |
| 35 | 17.6 |
Explain what the results show about the deformation of the strip, and whether the technician should test the same strip with a force of 45 N.
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.