College program Navy MIDN are not required to take calculus or physics. If they pick up scholarship, they have to but if they get advanced standing they do not. That being said, of those in my unit who did not pick up advanced standing or scholarship and were forced out before their junior year, the common denominator was a lack of calculus and physics classes. Yes the classes can be challenging, Physics 2 is the only class I have ever found myself in panic mode about whether I was going to pass or not, but reflecting on my experience it was well worth the challenge (improved time management, problem solving skills/logic, close friendships from studying for that class so much etc). If you have the opportunity to take either or both subjects without throwing off your degree plan, do it.