<p>I'm going to be an undergraduate at UNC this fall, and I'd really like to place out of Physics 116 and 117 since I took AP Physics C at my high school, and did very well in the class and on both sections of the AP exam. However, I've heard that the placement exam is extremely difficult and that not many people pass it. Can anyone comment on how what topics are covered in great detail and whether it's even a good idea to take the exam? Lastly, is it worth taking these classes again at UNC?</p>