Principles of Movement

is the change in the position of a body part with respect to the whole body.

The seven basic movements are , , , , , and .

and are similar body movements.

Levers can be used to magnify .

There are of levers.

We use the lever the most.

Two are exerted upon when the ball leaves the foot in soccer, friction and gravity.

Gravity influences by trying to pull the body or body part down to the floor (if acting against gravity).

Gravity is straight down, the that are lined up against that force will be most challenged.

The , for example, is responsible for the attractive force between masses.