Educational Physics Game Idea

Hello guys, There's a game making contest for creating an educational game. Topic range is very wide (from 1st Grade level till College, Subjects are Math-Chemistry-Biology-Physics). I am sophomore at Computer Engineering and an amateur game developer. I want to join the contest with a Physics related educational game because I think there are more "game material" in Physics than the other subjects.

However I still don't have a well-thought game idea. I think there's game potential in subjects like Momentum - Kinetic Energy / Potential Energy but I can't seem to find one.

Do you think Physics is a good subject for an educational game? If yes, in which particular areas would you recommend me to look into? Thanks in advance.

(As you probably guessed I'm not a native speaker, Sorry if I made any mistakes and let me now if there's any part which I was unclear about.)