Just to let you all know, I found that list on the 2011 SAT physics subject test forum. I did not make it so there are a couple questions on there that I’m not sure if right or wrong.
Also this th thread is dead. Every other math/science forum for June has like 30 pages. This only 6 lol
What do you expect? Physics isn’t a popular test. I’m not surprised these thieves recycle questions.
I can explain some concepts. No explicit question discussions on this forum as that is a violation of the CC policies.
I have studied significant figures in chemistry and physics. And these are the rules (Or what I can remember of them)
You measure to every value you are sure of (calibrations are given). Plus an estimated value. So if your ruler measures from 1 to 100 with 1 cm increments estimating a value of 36.5 or 37.7 is correct. Your estimate is close to where the actual thing is. So if it is between 36 and 37 I would not estimate 36.9 because that is wrong. 35 alone is wrong. Then you put an uncertainty, Normally this is half the smallest division on the ruler. However that might give you an unreasonably large value. So you take a smaller uncertainty and ensured that the precision of both the uncertainty and the normal measurement match.
Also. If you have to measure 75 cm then using a 20 cm ruler will require 4 measurements which causes the absolute uncertainties to add 4 times. So even if the markings are the same as a 1 meter ruler, your uncertainty is 4 times as big. Also more precise, equals more accurate (they are actuall different terms but used interchangeably in normal life). So uncertainty of 0.5 is better than uncertainty of 0.8. This would allow you to work out the answer for the second one.
Hope that clarifies some stuff. If you have any questions on SAT 2 Physics, Chemistry, Math 1 or Math 2. PM me.
No wonder they do not release any more practice tests. You might be surprised but some of the questions in this physics test came straight out of the Barron’s book. Used both it and PR. Gave me a solid covering of everything.
@specter97 Princeton Review’s practice tests are terrible though. They had rotational motion…
I want to self study for SAT Physics. Do you guys think it’s possible? If so with what resources and books?
@MrAustere It’s possible, if not necessary. No AP course in Physics will cover all the material in the Subject test anymore.
@Kyuutoryuu So what book do you recommend?
@creedbratton Wouldn’t you pull the piston because when you solve for T in PV=nRT… you see V and T are proportional
Also, was this a particularly hard test? What do you think the curve will be
@Brownster98 That is what I thought too during the test. PV = nRT. Pushing or pulling the piston won’t do anything to the temperature according to the formula. But my friend mentioned something like P = crt (? I am not sure) which basically says that pushing the piston will increase temperature.
@Kyuutoryuu They are very good practice tests in my opinion. Rotational motion does get tested on the SAT. So does capacitance but rarely. Better safe than sorry.
Also PR tests are actually harder than the real thing. This is a benefit in my opinion. An 800 on them is an 800 on the real thing as long as take the test well.
@MrAustere Take these 2 books. I self studied for the test and apart from a couple of careless mistakes on my part, nothing on the test threw me off. There is no better alternative. Also use the Official SAT study guide for subject tests. Has an actual physics test. Some questions get repeated or tested in a similar manner.
@Aegon6 The first law of thermodynamics states that energy is neither created nor destroyed during a thermodynamic process.
Change in internal energy = Change in Heat + Work Done
Change in internal energy is also = 3/2nR x change in temperature.
So an increase in internal energy increases temperature.
Internal energy increases when positive work is done. So when piston is pushed in, work is done on the gas so its energy increases. Similarly if the gas absorbs heat so its energy increases. Both lead to a temperature increase.
@specter97 What two books?
@specter97 Capacitance is tested sometimes, however rotational motion is NEVER on the Subject Test.
@specter97 wow thanks. Now I understand.
@MrAustere PR Cracking the SAT and the Barron’s Physics SAT book. Make sure you get the 11th edition for Barron’s as it was quite a big update over the previous edition.
@Kyuutoryuu It is on Sparknotes and on the PR book so I am assuming it does get tested. Granted it is not explicitly mentioned in the SAT 2 physics syllabus, but then again that is quite vague. The Syllabus doesn’t mention other stuff either.
Regardless, I see where you are coming from.
I did a practice test from the blue book like 2 days before the test and got 800. Ended up with a 740 on the actual thing. Took it on May.
Well it depends on how you actually took the test then. I do agree that some subject tests are harder than others simply because different concepts get tested. But on the whole, a 740 implies that you got several questions wrong which could be a bad day. Also the difference may not be that significant as it depends on how high or low your 800 was. I got an 800 with 3 or 4 wrong I think on the official BB test.
Scores are out in 26 minutes. Good luck fellow humans!