<p>The PR book says the curve for 2006 was 63 = 800. It varies by year but I wouldn't expect it to be too different, sadly =|</p>
<p>daniel....the mass in E=mcT is the mass of the liquid which doesnt change...and also if the thickness of the cup increased by 4 times, this doesnt not necessarily mean that its mass increases 4 times...</p>
<p>In a normal experiment the temperature difference of the liquid would be less when the cup is thicker and this is how u noe whether the power transferred is less...but in this case no change in T means that the thickness of the cup had no affect, which is what makes this question a dodgy one...but i am 100% sure that the energy lost by the cup is independent of the mass of the cup and 99% sure that the power remains the same.</p>
<p>if E is the same P must be the same. I understand what you are saying ... I understood the mass, temp and energy were referred to the cup, not a liquid. However, it makes sense that the temp and energy referred to a liquid and mass to a cup. If that is the case, then E must be the same, as well as P.</p>
<p>thinkin bout it again daniel i see ur point now...if the question was talkin bout the energy losses of the liquid then i was rite (which seems to make sense to me), but if the question was specifically talkin bout energy gained by the cup then u may have been rite (but still 4 times increase in thickness does not necessarily mean 4 times increase in mass)...it was a horrible question nonetheless</p>
<p>how did u do generaly then...how many did u leave and all?</p>
<p>i thought it was hard. there was very little on thermodynamics and next to nothing on modern physics.</p>
<p>I know, right?! Thermo isn't one of my strengths, so I put emphasis on it during my last-minute once-overs last night, but there was hardly any! I mean, I studied E&M too, but all the stuff I studied seemed to be craftily rephrased on the test to the point of no recognition =/</p>
<p>Which ammeter read the least voltage?</p>
<p>haha, I know guru... your reasoning seems better though, especially since 4 times more thick doesn't mean 4 times more mass.</p>
<p>I left 4 blank, 2 about a graph of pressure and volume, I saw that in PR's book but since I had not seen it on any practice test I simply ignored it. I also ignored rotational motion (I don't know anything about torque, angular velocity, displacement, etc ) but that turned out OK since I don't think any question involved rotational motion. The other 2 blanks I couldn't figure out on time, so I skipped them.</p>
<p>I felt the test was fairly tricky... it's hard to say how much I scored. I would be satisfied with a 750... that would mean maybe 13 wrong + 4 missed I think .
That's a reasonable guess ... but you never know...</p>
<p>How did you do ?
Ammeters read current..
The greatest current must have passed through the first and last ammeters (the whole current passed through them)
The least current I think passed through the ammeter to the far right, the one with the greater resistance. Voltage is the same when resistors are in parallel, according to I=V/R, same voltage and lower resistance would give a higher current than same voltage and higher resistance.</p>
<p>Well, the ammeter at the far right was A5 or something, and that wasn't an answer choice. The one right under the 6ohm resistor or the one above it?</p>
<p>I knew rotational motion like the back of my palm (ahh, AP Physics C kinematics, how I love you) so that wasn't hard. Pressure and volume has to do with ideal gas law, I think I left one blank.</p>
<p>I skipped 6 or so, but I'm not quite confident in the accuracy of my other answers =/ I'd love to ideally get 750+ but at my current standing I'm expecting a 700 or so.</p>
<p>i don't remember the answer ... it was the ammeter that measured the current passing through the highest resistance. It was only one answer I think.</p>
<p>i agree wit daniel on the circuit question...the two ammeters closest to emf supply shud hav greatest current and vice versa, but dat was a question i cudnt answer confidentally...i mean i knew how to do all the calculations wit resistances in parallel n i was so sure i wud get it rite in a test...but then they popped this bugger up...</p>
<p>i left 5 i cudnt do...cant even remember which ones, but i was surprised i cud get thru them all...oh well we'll wot happens</p>
<p>i cant remember the circular motion question - remind me, but i study IB Physics Higher level and that is HARD! so really SATs r supposed to be easier for me...but physics is never easy esp wen u gotta memorize all the formulas.</p>
<p>wot otha hard questions were there? cant remember...the man in the pool one was another dodgy question though....</p>
<p>oh n btw...where r all u physics ppl planning to go to college...jus a random question of curiousity...</p>
<p>I would like to have studied anything hard for physics. My high school education was definitely poor in this subject... in two years of Physics classes I failed to cover electromagnetism, waves, optics, heat and related subjects, and modern physics. I taught myself these contents intensively for one month.</p>
<p>I remember choosing only one answer for the diver/bird. It didn't seem to me natural that what the diver viewed was inverted, I also ruled out another option. I chose something about distance I think but I really don't remember.</p>
<p>I'm a Honduran and I'm applying to many Liberal Arts Colleges. Where are you planning to apply?</p>
<p>i put also just one option for the diver question...de two wrong ones were really wrong...n i thought the distance one was wrong too at first but one of them had to b rite n dis was the closest...so same answer ther</p>
<p>man i do feel srry for u dat ur school didnt teach u dis...do u do an AP course or sth?</p>
<p>i jus applied to UC Berkeley...will apply to other big names in Engineering(MIT and such...)...das y i need physics bad...</p>
<p>I think it was the bird was viewed lower than it really was. I mean, has anyone looked out of the water while they were under it? Everything looks flatter than it really is, as if it's pressed closer to the ground.</p>
<p>Last year we never got to anything atomic/nuclear nor relativity, so I learned all that myself. Everything else was a quick skim - I was in honors physics and we crammed as much as we could in, but the downside was that we didn't get very in-depth into many of the topics except a few.</p>
<p>AP Physics C didn't help me much since our class is focusing on mechanics over E&M!</p>
<p>I'm applying for MIT as well, but with this physics grade, I'm doubting the impressive-ness of my application.</p>
<p>Vivi...dun wrry too much bout SAT Physics scores...if u can ace AP Physics and write an impressive applications...ur SAT scores wont matter.</p>
<p>If my understanding is correct, colleges place less importance on ur SAT scores dan ur actual courses so dun wrry too much...n lookin at the fact that most ppl found de test hard, 700-750 looks quite possible...dat may well b enuf. But u can never b sure...</p>
<p>oh one other question for the block sliding down an inclined plane in still air...is there air resistance retarding its force? i didnt noe but i thought that still air mayb meant no air resistance (a pretty stupid inference) but hey, i cudnt leave 6 questions dat seemed like too much...</p>
<p>I put that there was air resistance, because even if the air was still, the motion of the block would create movement in the air, right? =/</p>
<p>yeah...dat seemed to make sense after the test...its jus dat in all the examples air resistance never seemed to be a factor...i hate it wen they break conventions</p>
<p>u dun ur interview for MIT yet?</p>
<p>Sure have, and it went really well too, so I'm praying that will factor in well with my app =/</p>
<p>there u go then...interview is prob more important, i did mine n it went pretty well i guess, i mean i got a free mocha out of it so it was nice...but de main thing i learned bout the application is dat MIT looks for ppl hu fit their atmosphere so if u read the stuff on their website n adapt ur essays and answers to suit dat purpose u shud stand a strong chance...</p>
<p>im jus wrried dat they wont consider me caus i study in thailand, but shudnt matter</p>
<p>i found the physics test yesterday extremely annoying. there were many questions like : i only , i and ii , i , ii and iii :(
i've got a few questions
there was a thermometer question asking for the correct measurment
how to increase d in projectile motion
last question : we can find them all if we know v0 t and distance
what does a half convex lens yield ? i made half bottom of image</p>