levers
three types of lever
class 1 , 2 , 3
four parts of a lever
levers are riged structures such as a bone
three thing that are needed for a lever
falcrom
efflort,force
falcron
load
the bottom of the head and the top of the spinal cord
1,2,3 FLE
load
this moves the joints
the wight you will be carrying
effort
applied to the muscles that helps move the load
example of first class levers is a pull back in rowing
the wheel borrow the wheel is the fulcrum and the load is in the barrow and you are the effort.
when you jump that is a second class lever
the shovel thired class lever bicep curls
mechanincal advantage