@mayman - I connected a bulb and a resistor in series for the first experiment
@Mathman97 - For the second harmonic question, I forgot which lines I shaded (too lazy to redo the problem), but I only darkened/circled/whatever they wanted you to do two lines corresponding to the two antinodes…
@glasshours can you please explain why you did that? That doesn’t make sense to me, you didn’t take any measurements.
@mayman - I got the measurements through the voltmeter and the ammeter; I connected the voltmeter parallel to the bulb, and the ammeter in series with the two resistors. Current in a series circuit is constant but voltage isn’t.
@glasshours I did the same except for the the two resistors part, don’t know why you have it there. However, I used a variable resistor for the second experiment.
You remember how there were 2 questions you’re supposed to answer with the experiment, the charge one and the electric potential one. I used power to answer for the electric potential. I that what you did?
@mayman - Isn’t the second question just referring to voltage…?
lol I failed the circuit one, but other than that, I should be fine.
@glasshours I might have misread it.
Thank god others did, too. I had a whole row of C’s and then like tons of D’s. Seems like college board wanted to give us a heart attack this AP season.
Smh I had a whole row of cs then changed them. Why did both object reach the ground at the same time? Good explanation please? I thought that was too simple
I felt that this test was okay for the most part. For the MC question on torque with force of 10N down at point W, did anyone say angular momentum would be maximized if a force of 20N was applied up at W for 60 seconds?
For the circuit one form O, what’s the point of the ammeter? I thought current in a circuit was constant so I just measured the potential difference across a resistor (of similar resistance) and the lightbulb. If the potential difference of the lightbulb consistently fluctuates and does not match the resistance of the resistor, then it should be a whatever lightbulb right?
@SimpleBio - It WAS a really simple question; I just talked about how horizontal velocity is constant, vertical acceleration is constant and the same, and used v=v0+at to sum everything up. Might have mentioned some other things, but everything was a blur haha
@rdeng2614 - I think they wanted you to prove that current in a series circuit is constant using the ammeter
@bobchillax the answer for that one was like 360
Did anyones circuit look like this? - http://gyazo.com/d99d516219189e19c0fce0e3918eabd6
Guys does anyone remember the momentum question with the guy hitting the ball with 820 newtons of force?
@mayman It was something with 820 to the right and less than 820 to the left, or at least that’s what I got.
@chemstar yeah same, also we have the same circuit
@mayman Got any other questions? Maybe we can compare answers!
@chemstar ammeters are placed in series with the resistors/bulbs, not across them.
Did anyone have trouble with the two carts on inclined planes? I thought their momentum’s would cancel out thus making them not go anywhere, basically maintaining their position.