Moments And Centre Of Gravity

Question 1

How do you find the moment of a force

Answer 1

= (force) X (perpendicular distance from the force to the fulcrum)

Question 2

What is a lever

Answer 2

Any rigid body that is free to turn about a fixed point or axis called a fulcrum

Question 3

What is the lawful the lever

Answer 3

When a lever is balanced by any number of forces, the sum of the clockwise moments acting on it is equal to the sum of the anti-clockwise moments

Question 4

What’s the centre of gravity

Answer 4

The centre of gravity of an object is the point which the weight of the object appears to act

Question 5

What’s an equilibrium

Answer 5

An object that is balanced is staid to be in equilibrium. The stability of an object is closely linked to the position of its centre of gravity
A body is in stable equilibrium when it is tilted and the centre of gravity rises

Question 6

What factors affect stability

Answer 6

Low centre of gravity
Wide base
If centre of gravity falls outside the objects base