Turning Forces

Question 1

What happens when you apply a force to something?

Answer 1

It might turn about a fixed point.
This fixed point is known as the pivot.
The turning effect is called a moment.

Question 2

Draw and label the force and pivot

Answer 2

N/a

Question 3

When does the moment increase?

Answer 3

The moment (turning force) increases if the force is larger or if the distance to the pivot increases.

Question 4

How to find the size of a moment?

Answer 4

M = F x d

M = moment of the force (Nm)
F = force (N)
d = perpendicular distance from the line of action of the force to the pivot (m)

Question 5

How is perpendicular distance measured?

Answer 5

Perpendicular distance is measured along a line that is at a right angle to the direction of the force.