Sorry guys but I need someone to clear up what I consider something I may have a misconception about. In my understanding a magnet or magnetic forces, can do work yet expend no energy. Is this correct? And if so is there a law I probably havn't learnt yet? Is it one of those things noone can explain? Or am I wrong and there is some energy conversion, what ever it may be? Sorta sounds like a stupid, and possibly simple question to me at the moment. But the answer is avoiding me D: ~Gelsamel Edit: Because it seems to me that if gravity does work through potential energy conversions then either magnets are mysterious and just do things or there is some sort of magnetic potential energy.