A manufacturer tests a sample of elastic used in a waistband. The sample is 21 cm long when no force is applied.
| Force applied in N | Length of sample in cm |
|---|---|
| 1.0 | 24 |
| 2.0 | 27 |
| 3.0 | 30 |
| 4.0 | 33 |
What is the force applied when the extension of the sample is 9 cm?
1.0 N
3.0 N
2.0 N
4.0 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.