Heavy-duty drawer runners are opened and closed repeatedly during quality-control tests. For each runner, the table gives the mean frictional force and the cumulative distance travelled.
| Test | Mean frictional force / N | Cumulative distance / m |
|---|---|---|
| J | 18 | 6.0 |
| K | 12 | 9.0 |
| L | 18 | 9.0 |
| M | 16 | 8.0 |
Which two tests transfer the same amount of energy to thermal energy stores?
Tests J and L
Tests J and M
Tests J and K
Tests K and L
113 exam-style questions on AQA GCSE Physics 5.2 Work done and energy transfer, covering 5.2 Work done and energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.