A circular theatre stage can rotate about a central pivot. Two horizontal forces initially produce equal moments in opposite directions, so the stage is balanced. The line of action of one force is moved further from the pivot. The other force does not change.
Which change to the force that was moved could make the stage balanced again?
Increase the size of the force that was moved
Reverse the direction of the force that was moved
No change to the size of the moved force can restore balance
Decrease the size of the force that was moved
124 exam-style questions on AQA GCSE Physics 5.4 Moments, levers and gears, covering 5.4 Moments, levers and gears. Each one has a worked solution and a mark scheme showing where the marks go.