A student measures the length of a spring. They then attach different loads to the spring and measure the length of the spring for each load.
The table shows their results.
| Load / N\text{N}N | Length / mm\text{mm}mm |
|---|---|
| 0 | 240 |
| 2.0 | 246 |
| 4.0 | 253 |
| 6.0 | 259 |
| 8.0 | 264 |
| 10.0 | 268 |
What is the extension of the spring with a load of 6.0 N attached to it?
6 mm6\text{ mm}6 mm
13 mm13\text{ mm}13 mm
19 mm19\text{ mm}19 mm
259 mm259\text{ mm}259 mm
245 exam-style questions on CIE IGCSE Physics 1.5 Forces, covering 1.5.1a Forces, resultant force and motion, 1.5.1b Load–extension graphs and the spring constant, 1.5.1c Friction and drag, 1.5.1d Force, mass and acceleration, 1.5.1e Motion in a circular path, 1.5.2a Moment of a force, 1.5.2b Principle of moments and equilibrium, and 1.5.3 Centre of gravity and stability. Each one has a worked solution and a mark scheme showing where the marks go.