<p>@RunningForLife<br>
I don’t quite remember the question properly …
What were the options</p>
<p>@Sally97: the options were like intensity, frequency, color of light, i forget the rest. it was about light being shined onto a surface, and then electrons being pulled up as a result.</p>
<p>@RunningForLife<br>
The electrons would be emitted if it exceeded the threshold frequency …</p>
<p>@Sally97: Ok good i put that too…i wasnt sure since one of my friends put intensity</p>
<p>They accelerate in opposite directions, right?</p>
<p>How hard was it, guys? I’m taking it in June. </p>
<p>I’m also taking it in June, how should I prep for this as I’m taking the AP Physics B in about a week.</p>
<p>It was pretty hard imo. You’ll have to know content AP Physics C and Physics E&M, or look up the topics on spark notes to get a good idea.</p>
<p>I really didn’t think it was that bad. I finished the test. If you got through all of the chapters in AP Physics you should be okay. I’m only in Physics B, but I’m pretty sure it didn’t really hold me back. I don’t think I got the special relativity question because we never really talked about that in the conceptual sense, however, I don’t think that one question is going to make or break my test. As far as preparation @Christobal21 @Hawkace I took one practice test the night before to get an idea of how the questions are asked. You need to know your basic kinematics equations, f=ma, centripetal forces in concept mostly (one question needed mv^2/r), know Ohm’s Law (V=IR, as well as P=IV and P=the brightness of a light bulb), know how positive and negative charges attract/repel, and the electric potential/force equations Field=Force/charge and force=kq1q2/r^2. The right hand rule (both of them) is also very useful and Magnetic Force=qvB=BIL. Gm1m2/r^2 came up too though. Just understand how to transform equations and what happens when you change one variable (i.e. increased distance by 2 in the gravitational equation makes for force that is 1/4 the strength because the 2 is squared and is on the bottom of the equation, etc.)</p>
<p>What was the answer for the spring constant ?
@RunningForLife </p>
<p>@Sally97 it was -7</p>
<p>@Sally97: what was the question?
@masturmonk1: a spring constant can’t be negative…</p>
<p>@RunningForLife<br>
Force and distance stretched values were given in the form of a table ( F and x values) </p>
<p>@Sally97: I got 1 </p>
<p>@RunningForLife
Me too </p>
<p>@RunningForLife
Was the answer to that waves question destructive interference</p>
<p>@Sally97
It was constructive because both waves were on the top of the string, heading towards each other.</p>
<p>@Timmay7<br>
But they weren’t making the medium vibrate in the same direction for it to be constructive interference I think</p>
<p>Can anyone post the answer to the graph questions ?</p>
<p>Will a raw score of 62 get me an 800? Does one need above 65 to score 800 on the May test? </p>