A student measures the period of oscillation T T\,T of a simple pendulum over five independent trials. Their measurements are recorded in the table below, with the measurement for Trial 4 missing.
| Trial | Period TTT (s) |
|---|---|
| 1 | 1.83 |
| 2 | 1.79 |
| 3 | 1.86 |
| 4 | |
| 5 | 1.80 |
| Mean | 1.81 |
What is the period measured in Trial 4?
1.76 s1.76\text{ s}1.76 s
1.77 s1.77\text{ s}1.77 s
1.82 s1.82\text{ s}1.82 s
1.87 s1.87\text{ s}1.87 s
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.