I made this experimental collision test a while ago. Today I tweaked it a little, added some materials, and voila! My first fully-rendered physics animation. :) You can control the amount of delay between frames to see the animation in choppy slow-motion if you wish. :) The approximate FPS is also at the top.
Created the thumbnail in GIMP. Rendered the 140 frame animation with the Cycles render engine. Can anyone tell me why 0-6 all run at 30 FPS but 7 randomly goes down to 18 FPS? It's most likely a bug in my code, but it could be due to the Scratch player.