: Gradual acceleration and deceleration to make motion look organic rather than mechanical. The fundamentals of animation in Web Design
: Gives a sense of weight and flexibility to objects (e.g., a ball flattening as it hits the ground). The Fundamentals of Animation
: Most natural actions (like an arm swinging) follow a circular path rather than a straight line. : Gradual acceleration and deceleration to make motion
: Determines how fast an action occurs and how heavy an object feels. The Fundamentals of Animation