Welcome! Feel free to have last minute chats here on cramming strategies, et al. The primary purpose of this page is to compare answers after the test is over.
Good luck
Alright - questions. Let’s hear em!
What are your overall feelings about the test?
It wasn’t too bad. The sig fig questions were handed to us, as were all of the chemistry ones. Some confusing questions though. If anybody wants to discuss, perhaps off the site, PM me.
That was a beast. Never having chemistry cost me lol
where is everyone on this? come on people start commenting
I was in AP physics 1 this year, so I went into the test not having learned about 35% of the test, but I felt pretty good about the test. I left a bunch more blank than most people probably because I didn’t learn it all, but it wasn’t as hard as I expected
I didn’t think it was too hard, but there were some obscure questions - I left more than I wanted blank.
does anyone remember the radium question and the one about the lightbulb inside the square (might’ve been a vacuum, i dont remember)
Ahh I was completely unprepared for those precision questions! & I think I but radiation because there was no air
for lightbulb one i put convection
The lightbulb question I put just radiation because conduction and convection both require transmission via a material medium, and there was no other matter in the vicinity to transmit it. I thought the sig fig questions were difficult, but that’s just because I don’t know sigfigs as these idiots stipulate it. The one with the ruler at 25.5, was it 25.5 ±0.2cm? The one about the three measuring devices used to measure 1.7358 m, was it all three work equally well?
Also, for the resistor question, did everyone get that all three affect it; that is, length, cross-sectional area, and temperature all affect the resistance of a wire? I knew the first two because of R = pl/A, and the third I inferred because of the existence of superconductors (low resistance caused by low temperatures).
All of the first three questions were downward/downward. They asked about the force and acceleration, respectively, of a ball at three different points in its trajectory. At any point after the launch, these must always be downward.
The relativity question was that the asteroid had the longest measurement of length.
Lenz’ law question at the end was “you need the magnetic field direction to answer this,” since it only said “perpendicular to the plane of the page,” whereas you need to know whether it’s in or out to determine current flow.
The horizontal distance travelled in the trajectory of the horizontal launch at height h with initial velocity v0 was v0(sqrt(2h/g)).
The question that asked “which lightbulbs’ brightness will be affected” I put all three, but I’m probably wrong.
The one about Galileo was that he wasn’t responsible for discovering that the universe was expanding (lol, that one was obvious even if you didn’t know the other answers).
Those should be a good start to jog people’s memory. Those are all the ones I remember, so maybe those will help come up with more of them.