Levers Flashcards
1
Q
Lever?
A
A rigid bar/ object that moves around a fixed fulcrum with two forces applied to it
2
Q
Fulcrum?
A
A fixed pivot joint
eg: a joint in the body
3
Q
Effort?
A
The source of energy
eg: muscles
4
Q
Resistance/load
A
The weight / resistance to be moved
eg: body part/something held/resistance
5
Q
Which is in the middle?
Mnemonic
A
123
FRE
6
Q
Example of 1st class lever
A
Elbow extension
7
Q
Example of a 2nd class lever
A
Anything at the ANKLE
8
Q
Example of a 3rd class lever
A
any other movement in the body
eg: bicep curl
