An experiment is carried out to measure the extension of a spring for different loads. The results are shown in the table below.
| Load / N\text{N}N | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
| Length / cm\text{cm}cm | 20.4 | 21.5 | [?] | 24.2 |
| Extension / cm\text{cm}cm | 0 | 1.1 | 2.3 | 3.8 |
Which figure is missing from the table?
22.322.322.3
22.522.522.5
22.722.722.7
22.922.922.9
183 exam-style questions on CIE IGCSE Physics 1.5.1a Forces, resultant force and motion. Each one has a worked solution and a mark scheme showing where the marks go.