Having Issues in Physics II :( Hi all, This is my first post on these forums, although I have lurked here for a little while here and there and I have to say I greatly appreciate the helpful topics you guys post! I have used them to get more than a few problems done... haha. Anyway, the problem I am currently having is this... A few days ago I took my first test in Physics II. This is a general physics course and I am taking it to fulfill a core requirement. We got our test grades back today, and I did quite a lot worse than I expected. In fact, I did so poorly that I am wondering if I perhaps filled the scantron out wrong by putting the wrong test version number or something. (I am a bit embarrassed to report the exact percentage, but it was below a 40%, which is highly unusual for me in any subject.) I am obviously going to email my professor and try to get this straightened out. I am not really sure why I am even typing this right now, because I know I need to review my homework over and over again for these tests (a lot of the problems were based off of our Mastering Physics homework) but obviously I am pretty depressed about this right now and I think I need to have someone talk me through what could have gone wrong. The test covered optics (both wave and ray), and I was feeling decent going into it after doing homework problems over and over again, but my grade was nowhere near what it should have been. I felt like I could have made a low B or a C on the test, which would have been fine for me once all the other grades were factored in. I am in no way planning to be a physics major, as you can probably tell from my username :P , so it's not like this is a life-altering issue for me or anything. Anyway, I guess I am wondering if you guys think I should maybe tough it out just in case it is not a grading error. I feel like I am a reasonably intelligent person, and I hate to give up so fast. The test weighting system is basically that all three tests together make up 45% of the final grade, with each one counting for slightly less than 18%. This is all verbatim from my professor's syllabus. My professor said she will shift the weight of the worst test grade to 9%. From this I can infer that it probably won't make a HUGE dent in my grade and a B is still achievable, but I am worried that the next two things we cover (electricity and modern physics) will be even tougher than optics. In that case, I am definitely screwed unless something changes. Sorry for blabbing on, but I feel so much better now that I have written this all out and had an opportunity to gather my thoughts. I look forward to your advice!