Four students measure the time it takes for a pendulum to complete 10 oscillations. Each student collects three measurements of this time.
| Student | 1st measurement (s) | 2nd measurement (s) | 3rd measurement (s) |
|---|---|---|---|
| A | 12.5 | 12.9 | 12.4 |
| B | 12.6 | 12.5 | 12.7 |
| C | 12.6 | 12.6 | 12.3 |
| D | 12.51 | 12.89 | 12.72 |
Which student collected the most precise data?
Student A
Student B
Student C
Student D
47 exam-style questions on OCR GCSE Physics Practical skills. Each one has a worked solution and a mark scheme showing where the marks go.