What is a lever
A rigid bar that moves about a fixed point when force is applied to it
What is the fulcrum?
The point of movement generally at the centre of the joint
What is the load?
The body weight or external object that moves as a result of the effort on a lever
What is the effort?
The muscular force that moves the load
What is in the middle of a first class lever?
The fulcrum
Which lever has both the effort and the load pointing in the same direction?
First class lever
Which levers have a mechanical advantage and which have a mechanical disadvantage?
First and second class have advantage , third has a disadvantage
Name an example of a first class lever?
Tricep dip and heading the ball
What is in the middle of a second class lever?
Load
Which lever has the direction of effort opposite to the load ?
Second class
Name an example of a second class lever
Standing on your toes in diving
What is in the middle of a third class lever?
The effort
Name an example of a third class lever
Bicep curl and kicking a football
