levers Flashcards
1
Q
what are levers in our body formed from
A
bones, joints, muscles
2
Q
what is a first class lever
A
a first class lever is where the fulcrum is in the middle of the effort and the load .like a see saw
3
Q
give an example of a 1st class lever
A
the neck eg heading a ball in football
4
Q
what is a second class lever
A
a second class lever is when the load is in the middle between the fulcrum and the effort.like a wheel barrow
5
Q
give an example of a 2nd class lever
A
your ankle.like plantar flexion when jumping
6
Q
what is a 3rd class lever
A
a 3rd class lever is when the effort is in the middle between the fulcrum and the load.
7
Q
give an example of a 3rd class lever
A
a bicep curl
8
Q
what is a mechanical advantage
A
when the effort arm is bigger the movement is easier
