A group of students investigate the physical power they can develop by performing step-up exercises on a gym bench.
They record their estimated weight, the total vertical height climbed, and the time taken using a stopwatch.
Table 1 shows some of their measurements and calculated values. The table is not complete.
Table 1
| Student | Weight (N) | Total transition height (m) | Work done | Time taken (s) | Power (W) |
|---|---|---|---|---|---|
| X | 600 | 3.5 | 2100 | 6.0 | 350 |
| Y | 480 | 3.5 | 1680 | 5.0 | 336 |
| Z | 550 | 3.5 | 1925 | 5.5 | 350 |
State the SI unit for work done.
57 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work. Each one has a worked solution and a mark scheme showing where the marks go.