It's like asking the difference between blue and a blue house. They are completely different. Physics uses mathematics. Some mathematics has been motivated or developed for physics. read more
That is really the difference between Physics and Mathematics. If you are not satisfied — let me give you another. Either you can say Newtons 2 little laws, or you can simply say - Classical mechanics follows Noether's theorem - Wikipedia. read more
There is a small amount of overlap between theoretical physics and applied mathematics, and there are some people who have done work in both fields, but these are negligible when we're talking about the main differences. I only mention it because if I don't then someone will complain. read more
Actually, the difference between math and physics is the same as the difference between the English language and a shelf of books. The difference is that you can actually pick up physics and touch it. read more