Levers Flashcards
1
Q
First Class Lever
A
The forces are evenly balanced and a wide range of movement can be produced
2
Q
Second Class Lever
A
These levers are at a mechanical advantage because the load arm is bigger than the effort arm, and large loads can therefore be moved with minimal effort
3
Q
Third Class Lever
A
These levers are at a mechanical disadvantage, because the load arm is greater than the effort arm, this allows large loads to be moved at a high velocity and with a large range of motion
4
Q
The Lever Arm
A
Bones act as levers within the body
5
Q
Fulcrum
A
The joints act as the fulcrum within the body
6
Q
Load
A
The load is the object which needs to be moved
7
Q
Effort
A
The muscle is the effort provided to move the load required
