A technician tests a removable handle for turning a water valve. In the first test, a force of 24 N acts at a perpendicular distance of 0.25 m from the valve spindle.
The table shows four arrangements for a second test.
| arrangement | force in N\mathrm{N}N | perpendicular distance from spindle in m\mathrm{m}m |
|---|---|---|
| P | 12 | 0.50 |
| Q | 12 | 0.125 |
| R | 48 | 0.50 |
| S | 24 | 0.50 |
Which arrangement would produce the same moment about the spindle as the first test?
PPP
RRR
SSS
QQQ
102 exam-style questions on Edexcel GCSE Physics 9.2 Moments, covering 9.2.1 Rotational effects of forces and moments, 9.2.2 The principle of moments, and 9.2.3 Levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.