Soc 20 Flashcards
1
Q
What is a 1st class lever?
A
the fulcrum is in the middle of the effort and the load.
2
Q
What is a 2nd class lever?
A
the load is in the middle between the fulcrum and the effort.
3
Q
What is a 3rd class lever?
A
the effort is in the middle between the fulcrum and the load.
4
Q
What is a lever?
A
a rigid structure (bone) a force acting upon it (muscle) to produce a turning movement (angular motion) a fulcrum which is a fixed point (joint) a load or resistance that is placed on the rigid structure (weight of body part being moved and anything that it is carrying)
5
Q
What is the fulcrum?
A
The point around which the lever rotates
