I am a high school graduate from India ( GPA of 4.8 out of 5), and I am planning to go for a physics major.I got an admit at the University of Massachusetts Amherst with a good scholarship and all but I recently found that most of my friends in the States had already taken an AP exam which I didn't give. Now how does it affect my academic life in college, both in a good and bad way? Should everyone take an AP exam? Does it help in getting into research faster or makes you application more appealing to an Ivy grad school since you were able to skip some classes and take higher level classes (also will it cost me more time and money to first go through basic classes , then the advanced ones all in the four years of undergrad) etc.? Please help me out.