*** Official AP Physics B Discussion Thread 2013-2014 ***

Test Preparation AP Sciences
221

<p>Can someone explain on the free response question 7 part d? It asks about the comparison of the index of refraction of the plate and that of the oil. I think it has something to do with thin film inference, but I’m not sure.</p>

222

<p>Okay so I study abroad and I did the international form of the free response. For me, it wasn’t too hard. I actually found it easier than the multiple choice section. </p>

<p>I worked really hard on this exam and I wanna order the booklet back so I can frame it or something. Can you do that even when you have the second form?</p>

223

<p>The question bombed by most AP Physics B students: Q6 on atomic physics; >40% of students earned 0/10 pts: <a href=“http://ow.ly/xRnDk”>http://ow.ly/xRnDk&lt;/a&gt; - AP Trevor (Twitter)</p>

224

<p>Got a 4</p>

225

<p>Got a 5 sweg</p>

226

<p>Somehow pulled a 5</p>

227

<p>Got a 4! For not studying/preparing and having a terrible teacher, I did way better than I thought! </p>

228

<p>I got a 3 and I’m ecstatic. All my teacher taught me was Newtonian Mechanics and waves. The exam, however, was heavily focused on electricity and magnetism. I guess I guessed well enough on MC and plugged in good enough formulas on the FRQ to pass! Lol</p>

229

<p>@manrushi
Wow, did you take 3 AP science classes and exams this year: AP Bio, APES, and AP Physics B?
That’s really impressive.</p>