Physics II May 2012 Thread

<p>First of all:</p>

<p>It was sososososososos hard, like last time I checked a transformer was a robot in disguise. </p>

<p>I hope everyone else found it as difficult, I omitted approximately 9 and probably got close to 5 wrong, what do you think my score is? I usually get 800's on practice tests in Princeton Review so I am kinda bummed out :/</p>

<h1>You think I should cancel?</h1>

<h1>Lets draw up an answer sheet</h1>

<p>I think i just paid $11 to fail that test. I hated that most of the questions dealt more with concepts than knowing equations.</p>

<p>I know this was supposed to be and easy question but could anybody tell me what they got for the question about the charge in the center of a circle, and the work being done on another charge near it? It was in the beginning of the test. Picture I was like the charge moving toward the center in a straight line, picture II was the charge moved half a circle, and picture III was moved almost a whole circle</p>

<p>charge 1 does the most work. Charge 2 and 3 do not do any work at all because the radius does not change and hence the electric potential is not changing either. Work is a function of electric potential.</p>

<p>Okay thanks…and does anyone know what the correct answer to that question about the compasses was?</p>

<p>Uhh ya, it was the answer with the wire coming out of the point. A current creates a magnetic field in a counter clockwise direction when traveling out of the page.</p>