A bottle cap begins to lift when the moment about the point where the opener rests on the cap reaches 3.6 N m.
A student pulls at right angles to the opener in four trials.
| Trial | Force in N | Distance from pivot in m |
|---|---|---|
| W | 15 | 0.24 |
| X | 20 | 0.18 |
| Y | 24 | 0.14 |
| Z | 30 | 0.12 |
Which trial would not lift the cap?
Trial X
Trial Y
Trial W
Trial Z
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.