Effects of natural forces like gravity on the objects weight.this principle using for characters rotations of hands,feet,head movements,or even eye movement.
Anticipation used to pose before an action actually occur,understanding the important principle,and learning to apply actions,appears more realistic. Character:popeye
Learning how to apply classic animation principles to a simple object,a bouncing ball,learning how to ease in and ease out ,bouncing tween and loops adjustments and graph ,while using symbols.