Soc 20 (levers) Flashcards
1
Q
Levers
A
A system of muscles working together to bring about movement
2
Q
First class
A
In a first class lever, the fulcrum is between the effort and the load.
3
Q
Second class
A
In a second class lever, the load sits between the fulcrum and the effort
4
Q
Third class
A
In a third class lever, the effort is applied between the fulcrum and the load.
5
Q
Load
A
the force that is applied by the lever system.
6
Q
Effort
A
the force that is applied by the user of the lever system (is supplied by your muscles.).
7
Q
Fulcrum
A
the point around which the lever rotates (is your joint)
8
Q
Mechanical advantage
A
When the output of the lever is greater than the input
9
Q
Mechanical disadvantage
A
When the input of the lever is greater than the output.
10
Q
Input
A
11
Q
Output
A
