Wow, your whole schedule is AP classes. I'm taking 4 right now and I think that's too many. I'm taking AP Physics B, AP Government and Politics, AP Calculus AB, and AP Macroeconomics. Well I'm also taking a 2.5 hour class after school to become a medical assistant.
AP Physics AB is not hard at all. It's a bunch of formulas that you memorize and basically from the question given you label your variables and pick a formula that gets you to the answer. That's about how hard it will get. Since you sound like a good student, you won't have a problem earning an A or B.
high school senior.