<p>Post all science section questions here.</p>
<p>Peace of cake. I breezed through it. Aiming for a 34!</p>
<p>awful. the last 9 on my sheet were straight c’s since i didn’t wanna waste the time on that chemistry section. My honors chem teacher from last year would kill me if he knew i didn’t even attempt it.</p>
<p>That sciene was a beeotch. I guessed on the entire section with the stands and the balls, or something like that. The frogs and the section with the four students’ theories about methane were pretty easy. But overall I thought this was the hardest section.</p>
<p>I couldnt finish the last section, I just guess all B’s and H’s for the last 4 i think. I think one of them was actually a B or an H so Im happy bout that haha. What was the deal with the string potential energy?</p>
<p>Okay so what did you guys put for the last question? About the Fluorine that was the most electronegative. I put A, but I have a feeling it was D. Thoughts??</p>
<p>a i think shark</p>
<p>Shark it was A since the lowest pH out of all of the acetic acids was 1.44 with like Cl and since F was more acidic then Cl, it would have a lower pH</p>
<p>I think I put A. I put the answer with the smallest number and I <em>think</em> it was right.</p>
<p>I think the string one was the potential energy is increasing because string is being twisted more…</p>
<p>Science isn’t my thing though, so I could be wrong.</p>
<p>yes i picked A (less than 1. whatever)</p>
<p>what did you get as the reason they marked 60 frogs</p>
<p>I ran out of time so i picked like C</p>
<p>Yeah Hopeful_Underdog I put the same with the potential energy so hopefully thats right. What about the distance the frogs were from each speaker or something</p>
<p>Yes. Potential energy definitely increases. What’s happening is torsion. (It’s like tension, but while tension is a pulling force, torsion is a twisting force.) Also, you can think about it in this way: if you released the twisted thing, it would un-twist. The only reason this can happen is if there was potential energy stored in it. So increases. someone please confirm/agree, it’s been a while since I took AP phyics.</p>
<p>EDIT: 0.9 m from each of the people?</p>
<p>from each speaker i put 0.9, which was half the distance in the diagram (1.8)</p>
<p>For the distance–I put 2.5 or 25 or something (whatever the distance was that they were seeing if the frogs came within). I said they marked so that they wouldn’t measure any frog multiple times skewing the data towards that of that particular frog.</p>
<p>I think nardi is right about the distance. Mine was just a guess. I don’t think I even looked at the diagram and that explanation makes sense.</p>
<p>Yeah I put 0.9 as the distance.</p>
<p>Underdog I think your right with the wouldn’t measure any frog multiple times now that I think about it. I said one frog but that wouldn’t make sense unless multiple frogs would get a better representation of the call…</p>
<p>Was it erosion? I think the other choices were mountain-building, metamorphosis, and something else.</p>
<p>I put metamorphosis. Was that wrong?</p>
<p>metamorphosis was right because the rock CHANGED (morph-) into a different one, lol</p>