An engineer tests a rough ceramic tile by sliding the same steel plate across it. In each test, friction brings the plate to rest.
The table shows the energy in the kinetic store of the plate before it reaches the tile.
| Test | Energy in the kinetic store in J\text{J}J |
|---|---|
| P | 120 |
| Q | 480 |
A temperature sensor shows that the tile has a greater temperature rise in test Q.
Explain the difference in temperature rise. Use values from the table in your answer.