<p>Anyone else cramming formulas? My teacher let us use the equation chart all year long so I only know 50% of them. I think I will honestly just memorize a few and take derivatives on the spot. I just need a 3. And then I get to skip this course in college. </p>
<p>Aim for 2/3 of the MC for a 5 - with the obvious caveat that you should aim higher if you tend to do worse on FRQ’s like most students.
I’m at a really high 4 now, and even though I only need a 3, I really want a 5! This class is pretty much the only class I tried in all year, so I’ll be a little irritated if I don’t get a high score since I expect high scores on other tests. I’ll basically be spending the majority of the next week and a half in my physics teachers room studying! </p>
<p>I don’t know if people still need stuff to study. But I found a PDF file with tons of FRQs and MC questions categorized by each subject!</p>
<p><a href=“http://www.mediafire.com/view/98w3fy4nfsmbjuo/AP_Physics_B_2013_Practice_Workbook.pdf”>http://www.mediafire.com/view/98w3fy4nfsmbjuo/AP_Physics_B_2013_Practice_Workbook.pdf</a></p>
<p><a href=“http://www.mediafire.com/view/rwd28bjofca2itq/AP_PHYSICS_FRQ_Packet_EM.pdf”>http://www.mediafire.com/view/rwd28bjofca2itq/AP_PHYSICS_FRQ_Packet_EM.pdf</a></p>
<p>Good luck guys!!! With these to packet you should be able to get a 5. Yes they are consolidated FRQ and MC Questions from past years.</p>
<p>And if you really are able to understand the FRQs, it should be easier no? MC you have to gamble your choices, but you know the material FRQs should easily allow you to get a 4 or 5 :D.</p>
<p>I’ve actually bought 5 Steps to a 5 review book for physics along with PR’s Physics B and SAT Physics. I think 5 steps is actually really good review, if you have a decent foundation in physics and if you’re going to use it 2 weeks prior to the exam. If you want to buy a physics review book to help you out through the year (bit too late for that now) I’d lean more to PR’s own review book. Although, PR’s Physics B does go more in depth than 5 Steps it tends to get really boring, and dragged down by a lot of jargon; I would get PR’s SAT Physics review book.</p>
<p>I’ve found that the best way to genuinely get better is by sitting down, reading a quick summary of a chapter, and doing a few problems.</p>
<p>anyone want to predict which topics will be on the frq this year? </p>
<p>I actually find 5 steps incredibly helpful in terms of refreshing the basic ideas and understanding of topics. Its explanations are crystal clear, although sometimes not enough for AP material. Princeton has lots of good info, but it jumps around all the time. </p>
<p>Anyone has useful tips for FRQs? I just always get intimidated by the fancily worded questions and blank out…</p>
<p>sr97329 - Do as many released FRQ’s as you possibly can. It may suck to waste your weekend doing this but you’ll become very familiar with the wording of questions and when you mark them with the rubric, you get very experienced with what specifics they’re looking for in answers. During the exam, stay calm and read VERY carefully. (On my AP Chem and Calc exams this year I made some very embarrassing mistakes by skipping over questions too quickly. One question had two questions in it and I skipped over the first part. Don’t do that!)</p>
<p>Anyone have one of those fortunate teachers who always seems to predict the FRQ topics? =P~ </p>
<p>Thank you kingofxbox99! 
yea I started doing some more frqs and found them not as bad as I thought.</p>
<p>Does anyone know if the level of difficulty of the MCs for princeton/5 steps is comparable to the actual thing?</p>
<p>@sr97329 i feel like the MC’s in PR are easier but then again that’s just me… that and my teacher intentionally picked hard questions for our final…? i think. anyways anyone else feeling completely helpless at the moment</p>
<p><a href=“https://drive.google.com/file/d/0B6uFUQTioxEJRm5mUlc5anpldkU/edit?usp=sharing”>https://drive.google.com/file/d/0B6uFUQTioxEJRm5mUlc5anpldkU/edit?usp=sharing</a></p>
<p>Just check appass .com</p>
<p>To calculate ap score</p>
<p>A system initially consists of an electron and an incident photon. The electron and the photon collide, and afterward the system consists of the election and a scattered photon. The electron gains kinetic energy as a result of this collision. Compared with the incident photon, the scattered photon has</p>
<p>(A) the same energy
(B) a smaller speed
© a larger speed
(D) a smaller frequency
(E) a larger frequency</p>
<p>The answer is D. Could someone explain why to me? Thanks! </p>
<p>E=hf? Less energy=lower frequency? I’m not sure… Does that apply here? </p>
<p>^ yes, it loses energy due to conservation of momentum and E = hf, h is constant so f decreases</p>
<p>You could also use the Compton equation for another source of proof:</p>
<p>delta lambda = h/(mc)*(1-cos(theta))</p>
<p>delta lambda will be positive and that means the photon has a longer wavelength after the collision. A higher wavelength = lower frequency. That was a question on my unit exam, haha</p>
<p>I heavily recommend the physics b supercram series on YouTube. There are accompanying notes as well. </p>
<p>Good luck tomorrow everyone :)</p>
<p>Try not to cram tonight; it’s counter-productive.</p>
<p>Anyone predicts what’s going to be on tomorrow’s FRQ?</p>
<p>Good luck tomorrow!</p>