A student compresses a foam block between two flat plates. The student applies a compressing force of 20 N in each of five trials and records the decrease in height of the block each time.
| Trial | Decrease in height in mm |
|---|---|
| 1 | 8.2 |
| 2 | 8.1 |
| 3 | 8.3 |
| 4 | 5.6 |
| 5 | 8.2 |
What should the student do to check whether the result from trial 4 is anomalous?
repeat the measurement with a greater compressing force
repeat the measurement with the same block and the same force
repeat the measurement with a different foam block
repeat the measurement from a different reference point
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.