The times for 20 swings of a pendulum are measured.
| Measurement | Time for 20 swings / s |
|---|---|
| 1 | 24.15 |
| 2 | 24.45 |
| 3 | 24.30 |
What is the average time for one swing?
1.215 s1.215\text{ s}1.215 s
2.430 s2.430\text{ s}2.430 s
12.15 s12.15\text{ s}12.15 s
24.30 s24.30\text{ s}24.30 s
164 exam-style questions on CIE IGCSE Physics Physical quantities and measurement techniques, covering Physical quantities and measurement techniques. Each one has a worked solution and a mark scheme showing where the marks go.