The Official AP Physics B Thread

<p>Thank you so much @kiwiasian!</p>

<p>how are you guys studying for this exam
?
=(
should I do FRQs and MC to see which areas i need to brush up on?</p>

<p>@kiwiasian, you sly dog!</p>

<p>I wish I had found this gold mine earlier, I’m having a time crisis right now. </p>

<p>What are you guys doing as last day review? Practice tests? </p>

<p>I’m doing practice tests, and reviewing each concept I don’t understand.</p>

<p>Also, my PR review book makes a big deal out of Young’s double slit experiment. Like, it is in every practice test. I have trouble remembering the associated equations. </p>

<p>Is Young’s double slit commonly on exams?</p>

<p>@BurnOut I think so… At least one MC, if not a free response, on every exam.</p>

<p>too bad i don’t understand it :(</p>

<p>Also, say you average 12/15 and 8/10 points on each FRQ, how many multiple choice questions do you generally need to get right for a 5?</p>

<p>Caffeine and crack will get me through the next 72 hours.</p>

<p>@Bearlolx that’s very hard. i mean E&M is like 25+% of the entire test, i would say if you get EVERYTHING ELSE CORRECT, that can be a 5, but if you make silly mistakes, it’s hard to say</p>

<p>how accurate are the tests in the barrons ap physics b book?</p>

<p>help im so nervous how do i study
i dont think im studying effectively
is just doing practice MC and FRQ okay to study?</p>

<p>@Burnout</p>

<p>[AP</a> Pass - AP Physicsb Calculator](<a href=“http://appass.com/calculators/physicsb]AP”>http://appass.com/calculators/physicsb)</p>

<p>According to this thing, if you got 8/10 and 12/15 on EVERY frq, you would need to get 31ish MC right to get a 5 - shouldn’t be too hard if you’re doing that well in free response</p>

<p>Wow, thanks @yayistme! That raised my morale. </p>

<p>All I fear now is what I don’t see coming. Something unexpected…</p>

<p>Wishing everyone good luck!</p>

<p>Prepare for the worst, hope for the best!</p>

<p>Can someone help me with this problem on one of the FRQs. Problem 3. Link: <a href=“Supporting Students from Day One to Exam Day – AP Central | College Board”>Supporting Students from Day One to Exam Day – AP Central | College Board;

<p>My question is that why aren’t the answers negative for like part C. I think it has to do with vectors or something, but please help, I never really understood electricity and magnetism. So for my answer C. I. I got -kq^2/x^2+a^2</p>

<p>But the guidelines says its positive. Please explain this and the other ones. Thanks.</p>

<p>The formulas for open/closed pipes aren’t on the formula sheet. Are they worth learning or are they unlikely to show up?</p>

<p>I’m talking about ones like f=nv/4L for a closed pipe and f=nv/2L for an open pipe, etc.</p>

<p>@Trixzoh
It asks you for just the magnitude of the forces, not their direction.</p>

<p>I don’t understand E+M at all. I’m so scared.</p>

<p>Anyone have 2009 released MC?</p>

<p>Does anyone have the PDF of the crash course?</p>