Two electric motors open different sliding access panels in a factory. Each motor exerts a constant force on its panel in the direction the panel moves.
| Motor | Force exerted on the panel in N | Distance moved by the panel in m |
|---|---|---|
| P | 240 | 0.50 |
| Q | 90 | 2.0 |
Which statement is correct?
Motor P does more work, because 240 N ÷ 0.50 m is greater than 90 N ÷ 2.0 m.
Motor Q does more work, because 2.0 m ÷ 90 N is greater than 0.50 m ÷ 240 N.
Motor P does more work, because 240 N × 2.0 m is greater than 90 N × 0.50 m.
Motor Q does more work, because 90 N × 2.0 m is greater than 240 N × 0.50 m.
113 exam-style questions on AQA GCSE Physics 5.2 Work done and energy transfer, covering 5.2 Work done and energy transfer. Each one has a worked solution and a mark scheme showing where the marks go.