Click here to go to the NEW College Discussion Forum

What did ppl think of the test? I thought it was decent, maybe a tad harder than the Kaplan/Sparknotes review books. I REALLY hope that the 800 raw score curve will be at 63 like in some review books and NOT 66 like in others... Lets post questions/answers and see how many we got wrong!

By Cooldude (Cooldude) on Saturday, October 09, 2004 - 12:26 pm: Edit

i found it quite difficult, i was using PR and it was definately more difficult than the PR tests

By Devious (Devious) on Saturday, October 09, 2004 - 12:45 pm: Edit

It thought it was horrible. There were a lot of Electricity and Magnetism questions, which is something my A-level physics class didn't cover yet.

Now that I've seen how an actual test looks like (I had no practice tests), I'm gonna be more prepared when I reatake it in December. :P

By Amrik (Amrik) on Saturday, October 09, 2004 - 12:54 pm: Edit

Ugh. Nasty test. I hope 800 is somewhere at 63 too.

By Chickenbroccoli (Chickenbroccoli) on Saturday, October 09, 2004 - 01:25 pm: Edit

anyone want to discuss specific questions from the test on AIM?

By Chickenbroccoli (Chickenbroccoli) on Saturday, October 09, 2004 - 02:23 pm: Edit

lol physics sat ii threads usually have like 40-50 comments after the test. guess it just aint popular this time around...

By Paulhomework (Paulhomework) on Saturday, October 09, 2004 - 02:54 pm: Edit

^ b/c most people take it at the end of the year, when the material is still fresh on their minds.

By Sherwin (Sherwin) on Saturday, October 09, 2004 - 03:44 pm: Edit

Sure I'll discuss it, what's your s/n?

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 03:47 pm: Edit

That test sucked. Ungh.

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 04:11 pm: Edit

I omitted 5 total.

By Samwise (Samwise) on Saturday, October 09, 2004 - 04:38 pm: Edit

I thought it was almost exactly like the Princeton Review book (which I got a few days days ago when I heard Sparknotes was bad). Most of the stuff I missed, I missed/didn't know on the practice tests but was too lazy to look up. (Sound waves diffract, lost me two points). Oh well, probably the best of my three tests.

By Samwise (Samwise) on Saturday, October 09, 2004 - 04:39 pm: Edit

Oh by the way, what was 74? (Special relativity q)

By Cooldude (Cooldude) on Saturday, October 09, 2004 - 04:40 pm: Edit

ok lets discuss, there was this question with a string being rotated, points A, B, C, D were marked and they asked at which point is the tenion in the string the greatest??
A) A
B) B
C) C
D) D
E) All are equal

i put E

Also that mercury question sucked, I just hope the curve is like 60=800

By Samwise (Samwise) on Saturday, October 09, 2004 - 04:43 pm: Edit

E (F=mv^2/r)

What answers did you put for the mercury ones?

By Chickenbroccoli (Chickenbroccoli) on Saturday, October 09, 2004 - 05:05 pm: Edit

no no, the answer to the string one is at the bottom of the circle because its a vertical circle and gravity is a factor.

if anyone wants to discuss it on aim, my sn is yourfunnypapers

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 05:11 pm: Edit

#74 I got .25c as my answer, so I put B.

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 05:13 pm: Edit

For the mercury question I said something like I and IV for the first one (decreasing volume or increasing temperature). The next question when the temps were equal I said E or something, which said that the amount of gas was inversely proportional to the volume.

PV/ nr = PV / nr, so.

By Chickenbroccoli (Chickenbroccoli) on Saturday, October 09, 2004 - 05:22 pm: Edit

yeah legendofmax is right about the first mercury question... the second one i left blank. what was #74 again? also, can someone confirm that the tension is greatest at the bottom of the vertical circle?

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 05:32 pm: Edit

I said the tension was greatest at the bottom. Anyone ever been on one of those rides at Six Flags? You feel some pretty gnarly force at the bottom of a circular curve, no?

And #74 I put b

By Devious (Devious) on Saturday, October 09, 2004 - 05:40 pm: Edit

I don't really remember the question that well, but if it was a rotating string the correct answer would be when the particle is at the bottom.

By Chickenbroccoli (Chickenbroccoli) on Saturday, October 09, 2004 - 05:47 pm: Edit

does anyone remember the question where you had to match up the graph of current through resistor to time. it was one of the first ones, like question 13 or something. also after that it was followed by a question about a graph of the capacitor's charge vs time. What did ppl put for those? (and what exactly was #74?)

By Amrik (Amrik) on Saturday, October 09, 2004 - 05:56 pm: Edit

What about the one with the satellite going around a star and where it is fastest? I put A because I got v = root(GM/r) so smaller r = bigger v.

By Devious (Devious) on Saturday, October 09, 2004 - 06:07 pm: Edit

If A is where it was nearest to the planet, that's what I put too.

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 06:47 pm: Edit

Yep, good ol Kepler.

By Jacques_Ka (Jacques_Ka) on Saturday, October 09, 2004 - 08:16 pm: Edit

I got the book 4D4, the question 49#
asked the expansion of universe.
How come Kaplan's book didn't mention?
My phy teacher also haven't told me before.

By Legendofmax (Legendofmax) on Saturday, October 09, 2004 - 09:38 pm: Edit

It's the redshift thingie, for the answer to that one. It's also mentioned in the PR book.

By Lolboyer (Lolboyer) on Saturday, October 09, 2004 - 10:37 pm: Edit

yuppers! the test was so much like the PR test... even though i didnt think i did to well lol
i just rememberd the Red Shift thing from the PR book haha

By Samwise (Samwise) on Sunday, October 10, 2004 - 01:13 am: Edit

"does anyone remember the question where you had to match up the graph of current through resistor to time. it was one of the first ones, like question 13 or something. also after that it was followed by a question about a graph of the capacitor's charge vs time. What did ppl put for those? (and what exactly was #74?)"

The charge vs. time (which I thought came first?) is an ln function. Not sure about current vs. time but I just randomly chose y=x, haha. 74 was the one with the spaceship and object moving at relativistic speeds. Yeah, I had no clue on that one either.

By Amrik (Amrik) on Sunday, October 10, 2004 - 09:11 am: Edit

Q = Q0(1 - e^(-t/CR)
I = I0e^(-t/CR)

By Kooler (Kooler) on Sunday, October 10, 2004 - 09:32 am: Edit

Did you all memorize every single formula in the textbook before taking the test? If so, did that help?

By Collegebound123 (Collegebound123) on Sunday, October 10, 2004 - 07:18 pm: Edit

The test is more conceptual. It asks you why or how things happens. There actually aren't very many calculations. However, knowing formulas will definitely help, so try to memorize them. But keep in mind what the forumlas are for, how each part affects the rest of the formula, etc.

What did everyone get for the gravity question when the satellite was 3r away from the earth? Was it g/9?

By Marko_4454 (Marko_4454) on Sunday, October 10, 2004 - 07:33 pm: Edit

Whats the best prep book for this test??

By Joshjmgs (Joshjmgs) on Sunday, October 10, 2004 - 07:45 pm: Edit

"What did everyone get for the gravity question when the satellite was 3r away from the earth? Was it g/9?"

GMm/r^2, if you have 3r => GMm/(9r^2) = mg/9

Yes.

The graph of Charge of a capacitor vs. time looks like the sqrt(x) graph, but has an asymptote at at y=(something).

By Amrik (Amrik) on Sunday, October 10, 2004 - 10:19 pm: Edit

It is NOT a square-root graph! It's a negative exponential graph! Q = Qo(1 - e^(-t/CR)). Please don't feed people wrong information.

By Samwise (Samwise) on Sunday, October 10, 2004 - 10:35 pm: Edit

The engine was a carnot engine, right?

I think I missed- Relativity, tension, 2 about waves, graph of current, planet speed. Hmm, what is the actual curve. In PR >60 = 800, but I don't think that's accurate, is it?
Marko, I'd go with PR. Sparknotes is too easy. The test we took seemed like a copy of PR's practice tests. If you study PR I'm confident you can get every question right.

Anyway, at least all this testing business is done with. I'm planning on picking up Introduction to Mechanics and learning some real physics.

By Samwise (Samwise) on Sunday, October 10, 2004 - 10:38 pm: Edit

Amrik, he said it looks like the sqrt graph. And it does. When I read the question, I thought ln function, which it isn't, but it does look like an ln fuction (because it's (1-e^-x)).

By Chickenbroccoli (Chickenbroccoli) on Sunday, October 10, 2004 - 11:42 pm: Edit

does anyone remember if the answer to the very last question, i think it was something like 'which of these would increase the magnetic field' and it had 3 choices, is I,II,and III (i believe it was choice e)?

By Sherwin (Sherwin) on Monday, October 11, 2004 - 12:25 am: Edit

Amrik, are those solutions to differential equations by any chance... becaue they look like it.

By Collegebound123 (Collegebound123) on Monday, October 11, 2004 - 12:28 am: Edit

Does anyone remember the question with the middle ring and it was asked what happened when it was heated up

I. Inner circumference increases
II. Out circumference increases
III. Thickness Increases

By Samwise (Samwise) on Monday, October 11, 2004 - 12:55 am: Edit

College- All of them change.

Sherwin- Yes, they were derived from dq/dt=E/R-q/RC

By Rm9712438 (Rm9712438) on Monday, October 11, 2004 - 09:26 am: Edit

Hey, anybody remember da ans 4 the question abt the headlights and illumination?

wat waz da ans?

By Astrix (Astrix) on Monday, October 11, 2004 - 09:55 am: Edit

Ok... so if I say couldn't get to 13. And get 6-7 wrong. In what kind of •••• am I? Please please give me an estimate of the kind of scores I can get. I have no idea :-/

By Chickenbroccoli (Chickenbroccoli) on Monday, October 11, 2004 - 04:22 pm: Edit

for the road one i said that the water acts like a mirror so it will reflect the light or something. anyone agree?

By Samwise (Samwise) on Monday, October 11, 2004 - 04:42 pm: Edit

I said it was due to internal refraction.

Astrix- according to Sparknotes that's a 770 (59 raw score). I'm not sure if that's entirely accurate though.

By Astrix (Astrix) on Monday, October 11, 2004 - 05:56 pm: Edit

For a moment, I was like wow... but isn't my raw going to be more like 53.

By Samwise (Samwise) on Monday, October 11, 2004 - 07:06 pm: Edit

Oh sorry, I misunderstood. 53 translates to 740 according to Sparknotes.

By Astrix (Astrix) on Monday, October 11, 2004 - 07:41 pm: Edit

np, thanks...

I think it should be II and III for Collegebound's q. The inner cirumference would be decreasing, because it would expand uniformly and the hole inside would become smaller