A road-sweeping vehicle is tested on a level track.
| mass | speed at start of test | speed at end of test |
|---|---|---|
| 1600 kg | 5.0 m/s | 10.0 m/s |
What is the energy added to the kinetic store of the vehicle during the test?
60 000 J60\,000\ \mathrm{J}60000 J
80 000 J80\,000\ \mathrm{J}80000 J
120 000 J120\,000\ \mathrm{J}120000 J
20 000 J20\,000\ \mathrm{J}20000 J
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.