Thought the Paper was easier than December. Wbu guys?
Come on Guys. No one wrote it? -_-
I thought this one was super easy. It barely had any E&M on it. No complaints, though!
It was the same paper as October 2015
http://talk.collegeconfidential.com/sat-subject-tests-preparation/1816325-sat-2-physics-discussion-thread-oct-2015-p1.html
Did you get these answers?
1)The time period of both pendulums is equal. As Time has no dependence on Mass for a Pendulum.
2)The graph of change in length with temperature is a straight line from the origin
3)The temperature of the mixture was 50° C
4)Minimum Equipment for Measuring Tension was ONLY Weighing balance? (Last Q)
1). can’t remember that question but yes, the time period must be equal
2). yup; lengthfinal = alphatemperaturelengthinitial, which is a linear relationship
3). yup
4). i said stop watch and meter stick
What about the Q for the Nuclear Substance disintegrating.
Was it (M -m1 -m2)c²
How does everyone think they did??? I thought it was awful the first time I went through, but then I checked over my answers with the time I had left, and I didn’t think I did so bad after all! Lol I actually wish there was more E+M questions on there, as that is what my class is going over in AP Physics right now… I jumped straight from honors physics (2, I think?) to AP, so a lot of the thermodynamics/optics questions were lost on me tbh
@jessssssie02 Yea, there were very few EM questions
@ThugLife13 no, its (m1 + m2 - M) c^2…because (m1+m2) is the final mass, so you have to subtract the first mass.
This test was much harder than December imho, and I expect the percentiles to drop…the questions seem easy at first, but they really weren’t…many tricks in the last couple of words in the sentence.
The first questions you’ve mentioned are correct (at least I think) except #4…where you need to use a meter and a stop watch.
@elliotalderson But in that reaction, energy was released. So the final mass was less than the initial mass. So it would be (M-m1-m2)c^2
I don’t recall that it said that the energy was released, I thought the question was about the binding energy…
but maybe I’m wrong, it just proves that it was really hard to focus on every word in every question in 60 mins 
we should prob stop discussing as College Board doesn’t like it
@elliotalderson It definitely said energy was released. For some reason, I obsessed over that question.
Yep, we probably should.
How is m1 + m2 the final mass? If you’re binding m1 and m2, energy will be released, therefore it’s M - m1 - m2
@InfiniteLibrary is correct
Anyways, was the Graph for Potential energy of the inclined plane an inverted V shaped graph- like this ʌ
Yes
What was the opinion of everyone else about the Paper?
Easy or Tough?
And what is the Curve going to be like? 60 = 800?
?
@ThugLife13 It was kinda tough. Barron’s Physics makes mention of the fact that a 58 can merit an 800. So let’s hope for the best.
Yeah. Let’s Hope. All the best Everyone 