A technician tests a compression spring used in a protective door buffer. The technician measures the length of the spring for different applied forces.
| Force in N | Spring length in mm: reading 1 | Spring length in mm: reading 2 | Spring length in mm: reading 3 |
|---|---|---|---|
| 0 | 100.1 | 100.0 | 99.9 |
| 2.0 | 92.1 | 92.0 | 91.9 |
| 4.0 | 84.1 | 84.0 | 83.9 |
| 6.0 | 76.1 | 70.0 | 75.9 |
| 8.0 | 68.1 | 68.0 | 67.9 |
| 10.0 | 58.1 | 58.0 | 57.9 |
| 12.0 | 46.1 | 46.0 | 45.9 |
Describe how the technician should process the measurements to obtain a mean compression for each force. Include how any anomalous measurement should be dealt with.
Describe how the processed data should be used to determine the spring constant and the range of forces over which the calculated value is valid. Your answer should include the value of the spring constant.
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.