Bouncing Ball Animation

As part of our research and development workshops for animation I went into after effects to create a bouncing ball. When I created a new composition in after effects, I created a new solid fill (blue background) and then an ellipse path (for the ball). For the first frame the ball is at the top and then a few frames later the ball is at the bottom. This sequence would repeat itself but each bounce would result in the keyframes getting closer to each other making the bouncing ball go faster. The ball uses squash and stretches.