<p>How much will College Board curve this one? I felt horrible, but I guess I don't have to get anywhere near all of them correct to get a perfect score.</p>
<p>there seemed to be a TON more non mechanics and lot less mechanics than usual. no?</p>
<p>It was like wayyy different from Barrons and Sparknotes… my god my brain cells are fried.</p>
<p>Agreed. I didn’t like it because I’m only taking AP phys this year and we haven’t gotten to non-mechanics stuff.</p>
<p>How many did y’all 1) skip 2) guessed randomly 3) actually knew the answer?</p>
<p>dreams come to naught…</p>
<p>guys, I’d like to ask a thing? I haven’t sent any scores to colleges yet.( I have already take 2 subject tests) So, I just want to send regular sat scores and math lvl 1. no physics. can I do this?</p>
<p>i thought it was easier than most of the practice tests i skipped 5 think i guessed on about 4 and knew the rest. It seemed to have a lot more calculations than i expected.</p>
<ol>
<li>The question with 0.6c spaceship thing</li>
<li>the matching with refraction, reflection, polarization, scattering, etc</li>
<li>the matching about thermal physics (entropy, heat, etc)</li>
<li>rutherford experiment</li>
</ol>
<p>I agree:// I’m also in the beginning of AP physics B so we’ve only covered mechanics. For everything else I only had some basic knowledge after self studying with sparknotes. October was so much easier than this one. Hopefully there’ll be a big curve…</p>
<p>1: I only left one blank because I ran out of time.
2: I probably randomly guessed on 10-15 after eliminating one or two choices.
3: Don’t even want to think about it.</p>
<p>Guess I’ll be retaking again in December.</p>
<p>I skipped a ton (somewhere between 10-15) and probably got around 10 wrong… what do my scores look like?</p>
<p>Is the curve based on overall test scores, or what college board thinks is fair?</p>
<p>was kinetic energy conserved in all three of the projections</p>
<p>Not sure about kinetic energy, momentum is always conserved though. So all three for the question after that.</p>
<p>i put all three for momentum but i think its wrong because i realized on the last one momentum in the x direction wasn’t conserved</p>
<p>Kinetic Energy i skipped because I thought it was II only, but if you consider the process as an elastic collision, then KE is not lost. So, it would be all three. but then it does not say anyways that it was elastic and the diagrams showed it to be non-elastic as the balls did not stick together.</p>
<p>Yes, Momentum was conserved for all three.</p>
<p>@ koreanme</p>
<ol>
<li>The question with 0.6c spaceship thing </li>
</ol>
<p>----- it was greater than 0.6c but less than c</p>
<ol>
<li>the matching with refraction, reflection, polarization, scattering, etc</li>
</ol>
<p>---- i cant remember which were which, but the block question was refraction, and the magnifying glass was also refraction??? i dont really know. and i can’t remember the last one. </p>
<ol>
<li>the matching about thermal physics (entropy, heat, etc)</li>
</ol>
<p>–i can’t remember, more specific please? </p>
<ol>
<li>rutherford experiment </li>
</ol>
<ul>
<li>postively and negatively charged … with equal mass ( i think it was E)</li>
</ul>
<p>AND Anyone know the answer to #68. the question with net unbalanced force and which of the following changes constantly?</p>
<p>@studytogo</p>
<p>i think number 68 was momentum</p>
<p>@studytogo</p>
<p>wasn’t the rutherford one electrons circulating around a nucleus</p>
<p>For the constantly changing I think I put in Potential Energy. I can’t remember the question but I remember that at that moment, I felt extremely confident with potential energy. I don’t know why. Damn.</p>
<p>For the collisions question, kinetic energy and momentum were both conserved for all three. Momentum is always conserved, and for kinetic energy, since energy is a scalar quantity you can actually just find out the individual 1/2mv^2 and add. It does not matter which direction the masses were headed. The kinetic energy added up to 2m in each case, and so was conserved!</p>