Algodoo

Alright so I made this very simple animation of a ball bouncing using only 36 geometries.

(Press undo or ctrl+Z to refresh the animation).

The entire animation is only 1.8 seconds, or 10FPS.

I will update this scene to try and add better animations, but for now this is what I made. The whole process to make this took about 15 minutes.

--TUTORIAL--

1. Make the individual frames start to end. Make sure to line them up in order.
2. Start at the first frame, then select the whole first frame and go to script menu.
3. Edit "timeToLive" and replace the infinity with 0.1 (you can make it higher or lower depending on how fast you want the framerate to be).
4. Go to the next frame and edit the timeToLive of that one by the identical value of the previous amount + the previous amount (0.1 + 0.1 = 0.2 for example).
5. Go to the third frame and do the same thing. (0.2 + 0.1 = 0.3).
6. Keep doing this until you reach the final frame. Make sure all frames are consistently timed. (You can just leave the timeToLive of the final frame as infinite if you want it to linger after the animation is finished.
7. Take the second frame, go to selection, click "Move selected to back" and place it under the first frame.
8. Take the third frame, go to selection, click "Move selected to back" and place it under the first frame.
9. Keep doing this until you're done with all the frames.
10. Check the final animation for any errors.

It may seem complicated, but it's actually very simple once you get the hang of it.

You are free to copy this scene to make your own animations, credit appreciated.