A Jump Up, Jump Down At different speeds and In different occasions. 

Bounce: life is not meant to be in one direction, so also art. 

Take a look at a tennis ball when it is hit against the wall, immediately it changes its movement and direction, it moves up and down as of it is following a pattern.

Bounce is a type of art movement that changes the normal movement of an object and also following a pattern at the same time. 

It’s also a kind of art that doesn’t have a rule guiding it of follows a particular way; it may occur once or repeat its pattern (i.e., moving up and down or to and fro).