<p>That eV/m question asked for speed
The answer was sqrt(2qV/m))</p>
<p>eV=KE
eV=.5mV^2
V=(2ev/m)^.5</p>
<p>I didn’t do the Ev/M one lol. Yay I kinda guessed on that double slit diffraction one. Ok I got that for Fg and accel for Earth/Sun too. What about the permanence of magnets one?</p>
<p>the Q were kind og vague but for the 1st magnet Q i said that both or either of them were a perm magnet and for th2 2nd Q, i said that both were perm magnets</p>
<p>not sure but thats wat i put</p>
<p>I deduced that too</p>
<p>Does anyone else remember having 4 As in a row? Also what about the liquid being heated question? I said its coeff of volume expansion was higher but I wasn’t sure</p>
<p>hey guys i took physics blind today, got everything in the mechanics section, failed the rest.
please enjoy your curve boost
-sillyup20</p>
<p>That seemed right. I was thinking that but left in blank and didn’t have enough time to go back and look over stuff 
Do you guys think a bad score on SAT Physics as a freshman will look bad on college admissions?</p>
<p>Any more hard questions people remember?</p>
<p>Can we go over those first definition questions-wave stuff?</p>
<p>Grad</p>
<p>The curve is typically -15 for 800, right? I’ve heard that some easier versions are only -12.</p>
<p>On the relativity one I said 5/3 or something. Then with the waves I said all for interference, string/light for transverse, all for carrying energy. Acoustics: beats - diff in frequency, quality(timbre) - difference between guitar and piano, pitch - fundamental frequency. Oh and on the induction one (negatively charged rod brought to neutral object) I said that X and Y would have the same potential…not sure though, none of the other answers made sense</p>
<p>Here’s a message that I wrote to College Board just now:</p>
<p>I am extremely concerned that my daughter’s June 2013 SAT subject test scores will be adversely impacted by the mass cheating situations in Korea for May 2013 tests. Since the whole Korea had its SAT scores cancelled in May 2013, they will need to retake the tests in June 2013. The SAT subjects are graded on curves, and since we all know that the Koreans do much better on Math and Science subjects than students in US (hopefully not because of cheating!!), therefore abnormally high participation of SAT in Korea for June 2013 will skew the scores that are graded on curves. In other words, US students that took June 2013 subjects will see lowered scores, especially for Math Level II, Physics, etc.
This is obviously a grossly unfair situation for the hard working kids in US that took the June tests. They should not be the ones that got penalized for the mass cheating in Korea.</p>
<p>Oh I think I guessed 5/3! It was either 5/4 or 5/3 I think and I’m pretty sure I marked 5/3. Yes I think I agree with all your answers @basket91! Except I don’t really remember the X and Y one.</p>
<p>i either put 5/3 or 5/4</p>
<p>4ev?
for the graph with the electrons</p>
<p>I put 4/5 for the relativity question why is it 5/4 0r 5/3???</p>
<p>[Time</a> dilation - Wikipedia, the free encyclopedia](<a href=“http://en.wikipedia.org/wiki/Time_dilation]Time”>Time dilation - Wikipedia)</p>
<p>Could you explain in context of the problem…I am in AP phys c but I know This stuff</p>
<p>It said the sqr (1-(v^2 /c^2) ) term was 3/5, and t/(the above term) is the answer, so its 5/3t</p>