Four students measure the time it takes for a pendulum to complete 5 full oscillations.
Each student collects three measurements of the time.
| Student | 1st measurement (s) | 2nd measurement (s) | 3rd measurement (s) |
|---|---|---|---|
| A | 5 | 5 | 4 |
| B | 5.2 | 5.2 | 5.6 |
| C | 5.1 | 5.0 | 5.2 |
| D | 5.12 | 5.48 | 5.25 |
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.