<p>Can anyone guess the curve for this one? I’m really worried for the result now. :/</p>
<p>the ohm’s law one should have been the one with the voltmeter in parallel to the variable resistor (weird arrow), and with the ammeter in series</p>
<p>^ No it was the voltmeter in parrallel with the resistor and the ammeter in series. </p>
<p>As for the covering the bottom half of the lens question, the choice was in which it said the whole image disappears, i’m pretty much sure about it since i did a similar type question in barrons for it and it said the brightness of the image is decreased, and since it didn’t have a choice of brightness is decreased it implied that the image mostly disappeared.</p>
<p>Edifice: they weren’t asking about brightness though - just how much of the actual image remains. And so yes, the brightness goes down, but the entire image still remains.</p>
<p>any predictions on curves?</p>
<p>embargo is lifted let’s do this…for the question on what will cause the greatest velocity before it hits the ground ( it had four arrows, one up, one down, one horizontal, one diagonal), what was the answer?</p>
<p>It was asking speed, not velocity. And all of them had the same speed. Conservation of energy.</p>
<p>what about the two questions with the mug and the thermometer?</p>
<p>I said inner wall expanded faster than the outer wall of the mug.</p>
<p>^Same question ahah. </p>
<p>Anyone remember what property of light the slit experiment shows?</p>
<p>wait what about the thermometer part. like why the level first decreases then increases?
and for the one where the inner one increases faster than the outer wall of the mug, which choice was that: C or D?</p>
<p>Honestly I didn’t think the test was harder, compared to the sparknotes practice tests. And the one with the different angled velocities-- isn’t the one facing downward the one with the highest when it hits the ground? All of them have the same potential energy but the one facing down also has a greater starting kinetic energy (versus the ones that have less starting velocity in the direction of y?).To me, the questions that tripped me up were the ohms law diagram, the laser and speed of light (should’ve caught that) and a couple others( brain dead right now).</p>
<p>Errr, I put that the glass expands before the liquid inside the thermometer could. If you google “thermometer level decreases then rises”, you get roughly the same idea haha.</p>
<p>kikuhana: The wave nature I think.</p>
<p>Yaaay that’s one fewer wrong!</p>
<p>Does anyone remember more of the wave questions? What happens to the wavelength/freq of the guitar strings when one is thicker than the other or when you increase the tension in one? Sounds kinda common sense-y, but I was really doubting myself… (knew I shouldn’t have tried to cram all waves, optics, and modern in a few days -.-)</p>
<p>and ^ for the thermometer one, the glass expands first (contacts water first), causing an increase in volume so that the water level dropped for a second.</p>
<p>@kikuhana: you had to use a combination of velocity = sqrt(Tension/(mass/length)) and fundamental frequency = v/2L and fundamental wavelength = 2L. when one is thicker, the mass is larger, so velocity decreases (answer: frequency decreases, wavelength stays the same). if you increase tension, velocity increases (answer: frequency increases, wavelength stays the same). notice how fundamental wavelength stays the same since it is independent of velocity. you just had to know your formulas for that question</p>
<p>when you increase the tension, wavelength stays the same and frequency increases
im not sure about the other one though…what were the choises??</p>
<p>imaBOSS: THANK YOU FOR MAKING MY DAY YEEEES. You’re positive about your answer, right?</p>
<p>Anyone know what happens to the boy and the sled after he stops?</p>
<p>I don’t get it- why are wongtongtong AND EducationOD both commenting on this thread???</p>