After looking for a bunch of games with good Physics in them, I came upon a completely free game called 'De Blob' which I found to be extremely fun. The download is 96 MB and its definetely worth it. It has good 3D graphics and can run on most PCs (and laptops) which means everyone can enjoy it. In the game, you control this man-eating blob that rolls around a large city. It may not seem like its all that great, but its a really fun game!

Here is the site which has more information on it and also provides a good download link and several mirrors:
http://www.fun-motion.com/physics-games/de-blob/

Lol, was that and laptop's part aimed at me?
Anyway I am downloading it now.

Yeah it was. I was implying that it WILL work on your laptop. Lol...how did you know...

Lucky guess. Stupid connection was reset just before it finished. Ill try to get it again later

Anyone who hasn't tried this game should. Its good good good. Unfortunately after you finish it once, its not the kinda game you would play again. Still lots of fun though.