Movement Analysis - Levers Flashcards
1
Q
What is a Lever
A
Machine in the body system to help you move, working with muscle and bone
2
Q
What can muscles only do
A
Pull
3
Q
How many components do levers have
A
3 (fulcrum, load and effort )
4
Q
What component is where the lever rotate
A
Fulcrum
5
Q
What is Load
A
Force applied by the lever system
6
Q
What is effort
A
Force used by the user of the lever system. Supplies by your muscles.
7
Q
What structures do Levers have
A
A rigid structure
8
Q
How many classes of levers are there
A
3
9
Q
Describe the first class lever
A
Fulcrum in middle
Examples is when elbow or knee straightens
10
Q
Describe the second lever
A
Load in middle
Second class levers are quite rare
Wheelbarrow good example
11
Q
What is a Third class lever
A
Effort in the middle
Spade is good example
