A cable-driven camera platform crosses a studio floor in sections R and S. Sensors record the following measurements.
| Section | Pulling force | Distance moved in direction of force |
|---|---|---|
| R | 28 N | 1.5 m |
| S | 16 N | 2.0 m |
What is the difference between the work done by the cable in section R and section S?
6 J6\ \mathrm{J}6 J
10 J10\ \mathrm{J}10 J
74 J74\ \mathrm{J}74 J
32 J32\ \mathrm{J}32 J
115 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work, covering 8.1.1 Energy stores and transfer diagrams, 8.1.2 Ways of changing a system's energy, and 8.1.3 Work done by forces. Each one has a worked solution and a mark scheme showing where the marks go.