Four electric cranes lift loads at a construction site.
The table shows the work done by the motor of each crane and the time taken.
Which crane's motor produces the most power?
| Crane | Work done / J\text{J}J | Time taken / s\text{s}s |
|---|---|---|
| A | 45 00045\,00045000 | 15 |
| B | 90 00090\,00090000 | 15 |
| C | 45 00045\,00045000 | 30 |
| D | 90 00090\,00090000 | 30 |
Crane A
Crane B
Crane C
Crane D
95 exam-style questions on CIE IGCSE Physics 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.