I was thinking it over, and I think I know what killed me on this physics test.
Pretty much all the homework we're given and stuff are single-step problems. The other tests were the same way, save for one problem I can remember from my third test that I did well.
This test was full of what I imagine were multi-step problems, and that's where I hit a brick wall. I was able to do the first two simple problems (one was a simple projectile motion problem), but after that I think things started to get multi-step. Now I'm not positive, but I think that's what was going on. What I mean is that with a problem, I'd have to do stuff with kinematics, momentum, and energy, or some shit like that. I just wasn't able to pull it all together, and I doubt I'd be able to do it today on a full night's sleep.
Sux.