I’m an international (senior year just started) whose school (or any one near me) doesn’t offer any ap courses . I decided to take ap out of general interest for the subject ( physics c) . I’m scared that if I get a very low score , but do not report it to any of the colleges I will be applying to , will they still know I took the the test and screwed up? Or should I just cancel the test score?
So your school doesn’t offer the class and you self-studied? They won’t know you omitted it. You’re probably better off, even, because there’s no indication (such as taking the class) that you ever should have taken the test.
Since your school does not offer the AP course, unless it puts the score on your transcript, colleges will never know you took the exam unless you tell them. However, since, AP scores carry little to no weight in the admissions process, I really would not worry about this.
Thanks a lot people!! 
My school doesn’t report the scores.
So if colleges wouldn’t know about my score unless I tell them , I guess there’s no harm?
P.S. ( I know I should be posting this elsewhere but I’m really feeling hopeless)
I haven’t done much practice ques , however , all the concepts are clear…am I too hopeless for tomorrow’s ap physics exam ?
If i give the same test next year,and decide to send the score for credit,will i need to send both the scores?(this one too)
No, but you have to pay to withhold a score.