A student drops a ball of mass 0.050 kg from a height of 1.00 m onto a hard floor. She measures the maximum height of the ball after each bounce.
The Table shows her results.
Table
| Bounce number | Maximum height in m\text{m}m |
|---|---|
| 0 (height dropped from) | 1.00 |
| 1 | 0.64 |
| 2 | 0.41 |
| 3 | 0.26 |
The gravitational field strength is 10 N/kg.
Describe the changes in the way energy is stored as the ball falls, hits the floor and rises again.
Use the data in the Table to explain why the ball bounces lower each time and whether energy is conserved.
44 exam-style questions on OCR GCSE Physics 7.1 Work done, covering 7.1.1 Conservation of energy in a closed system, 7.1.2 Energy stores and transfers, 7.1.3 Energy changes by heating, forces and current, 7.1.4 Quantifying energy transfers in a system, and 7.1.5 Kinetic, elastic and gravitational potential energy. Each one has a worked solution and a mark scheme showing where the marks go.