A skier travels from rest down each of four snow routes. The skier and equipment have the same total mass for every route. The table gives the vertical descent and the speed at the end of each route. Use g=10 N/kgg=10\ \mathrm{N/kg}g=10 N/kg.
| Route | Vertical descent in m\mathrm{m}m | Speed at end in m/s\mathrm{m/s}m/s |
|---|---|---|
| J | 6.0 | 9.0 |
| K | 9.0 | 10.0 |
| L | 12.0 | 13.0 |
| M | 16.0 | 14.0 |
For which route does the smallest proportion of the energy transferred from the skier's gravitational store end up in the skier's kinetic store?
Route J
Route L
Route M
Route K
121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.