A gardener compares two electric lawn mowers.
The table gives measurements for lawn mower P.
| Power in W\text{W}W | Operating time in s\text{s}s |
|---|---|
| 1200 | 60 |
Lawn mower Q has a power of 1500 W and transfers 180 000 J180\,000\ \text{J}180000 J of energy.
State the equation linking power, energy transferred and time taken.
Calculate the energy transferred by lawn mower P during the operating time shown in the table.
Calculate the operating time for lawn mower Q.
128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.