Mind map
Moment
Mind map: moments in physics
Map content
Moment
Force x perpendicular distance
Where an object is not turning around a pivot, the total clockwise moment must be exactly balanced by the total anti-clockwise moment.
It is like a see-saw
f the people are identical weights and sit identical distances from the pivot, the see-saw will balance. This is because the total clockwise moment is balanced by the total anti-clockwise moment.
For a spanner, to make it easier to turn, you can make the spanner longer, or put more force.