Science - The Lever
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What is a lever?
A lever is any rigid body which is free to turn about a fixed point or line called a fulcrum
List examples of a lever
What is a fulcrum?
A fulcrum is the fixed point or line through which something swings
State the Law of the Lever
When a lever is balanced the sum of the clockwise moments is equal to the sum of the anticlockwise moments
What is the centres of gravity of an object?
The centre of gravity of an object is the point through which the weight of the object appears to act
Explain what is meant by the term equilibrium
This is when an object is balanced
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