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What is the formula for a moment?
Moment = Force x Distance from pivot.
If you want to lift a heavy load with a small force, where should you apply your force on a lever?
As far away from the pivot as possible.
What happens to the direction of rotation when two gears are meshed?
They rotate in opposite directions.
If Gear A is smaller than Gear B, how does their speed compare?
Gear A must rotate more times than Gear B to move the same amount of distance.
Why is a lever called a 'force multiplier'?
Because it allows a small input force to generate a larger output force at the point of the load.