Animating bouncing balls of different weights

To begin I started with a simple animation of a ball bouncing up and down to get a grip of the motion and movement needed to do this task.

I believe this is very successful, although Simple the goal is clear and nicely animated.

Reference: https://youtu.be/aY3TrpiUOqE

In this video can be seen balls of different weights and materials being dropped. This has been extremely helpful in capturing the natural movement of each when animating.
to begin I used a rubber bouncing ball.

when studying this movement I discovered how each of the balls slow down once they reach the highest point and are at their fastest immediately after they hit the surface. Due to the rubber bouncing ball being much lighter it bounced a lot more than the rest and is much faster. I do believe my animation is much too slow and would be more accurate if it was faster.

BasketBall

when animating the basketball due to it being heavier and larger I discovered it not only moved significantly slower but it also had wider bounces. However the same applied for this that one it hit its highest point it slowed down and sped up at impact.

Bowling Ball

Lastly I have animated finally animated a bowling ball. The bowling ball is significantly heavier therefor it does not bounce as much as the other or go as far. It most does fast small bounces due to the weight dragging it down.