Soc 20 Flashcards
1
Q
What is a ‘lever’
A
In your body, the term ‘lever’ refers to a system of muscles and bones working together to help you move.
2
Q
Exercising using a lever
A
When you exercise, your muscles pull on your bones, and your bones create movement, acting as levers.
3
Q
A fulcrum?
A
The point around which the leaver rotates
4
Q
A load-
A
The force that is applied by the lever system
5
Q
Effort lever
A
A force that is applied by your muscles.
6
Q
Lever arm
A
A rigid bar such as a bone.
7
Q
Order of lever classes
A
FLE
Fulcrum in middle- 1st
Load in middle- 2nd
Effort in middle- 3rd
8
Q
First class levers
A
In a first class lever, the fulcrum sits in the middle, between the load and the effort. A good example of a first class lver is the oat on a boat
