<p>It's a week before the test!</p>
<p>What should we do?</p>
<p>Any questions and answers posted up here would be welcome!</p>
<p>Well, I've just starting preparing for the test yesterday, I'm taking physics literature and math =]</p>
<p>I'll be glad to answer any questions ;)</p>
<p>I finished barron's book, and tomorrow I'll take the rest of the practice tests.. =]
At school we used to solve questions much much much than this , which is good =]</p>
<p>I have a couple of questions:</p>
<p>how is light "somewhat" polarized when it is reflected from a smooth flat glass surface?
(there is a similar question in the BB for Subject tests)</p>
<p>What is the difference between an elastic collision and an inelastic collision?</p>
<p>Why does any material in a superconducting state have no resistance?
(Please write out any little facts like this one that you can think of off the top of your head. thanks)</p>
<p>I think that the material on this test isn't too difficult, its just that there is so much being tested, which makes it a bit hard.</p>
<p>Thanks for answering my questions.</p>
<p>To pass a slow vehicle within the length of the passing lane, Samr got up well over the speed limit. He then spotted a police cruiser coming around the corner and hit the brakes. If his deceleration was 4.953 m/s2, and it took him 1.2 seconds to get back to 100 km/h, what speed had he reached before spotting the police?</p>
<p>What is the difference between an elastic collision and an inelastic collision? Elastic collision: objects bounce off each other. Inelastic: objects stick.</p>
<p>Why does any material in a superconducting state have no resistance? This will NEVER come up on the test, however here is a rough idea: <b>INTRODUCTION</b></p>
<p>Meadow, is 105.9436 the right answer?</p>
<p>the question about superconductivity was actually one directly from the BB for Subject Tests...lol...</p>
<p>how is light "somewhat" polarized when it is reflected from a smooth flat glass surface?
(there is a similar question in the BB for Subject tests)</p>
<p>This is because always some light is transmitted through, even when reflection takes place.</p>
<hr>
<p>What is the difference between an elastic collision and an inelastic collision?</p>
<h2>In elastic collisions, the bodies rebound, while in the latter, the bodies stick. In elastic collisions, kinetic energy is conserved but not so in inelastic collisions.</h2>
<p>Why does any material in a superconducting state have no resistance?</p>
<p>Conductance is inversely proportional to resistance! If you want to know what actually occurs in the superconducting state, let me know.</p>
<p>how is light "somewhat" polarized when it is reflected from a smooth flat glass surface?
(there is a similar question in the BB for Subject tests)</p>
<p>Polarised parallel to the plane surface.</p>
<hr>
<p>What is the difference between an elastic collision and an inelastic collision?
Wrong. The bodies stick together ONLY for ~<em>perfectly inelastic~</em> collision. Main difference - Elastic conserves kinetic energy, inelastic does not conserve kinetic energy [some KE is converted to potential energy, sound energy, heat energy, yadda yadda]</p>
<p>In june they busted out a fractal question on us out of nowhere. In case it happens again you may want to study up on where fractals occur in nature...</p>
<p>fiona, i talked only to the level of question asked..
Otherwise yes, the coefficient of restitution tells us how inelastic or elastic the collision is.</p>
<p>As a common example, fractals occur in leaves in nature; though they can be seen almost everywhere.</p>
<p>Nowhere on Google can I find a source that states that inelastic (without any qualifiers) indicate that they stick together, and neither do I want to be responsible for the propagation of a fallacy.</p>
<p>define:inelastic</a> collision - Google Search
what</a> is an inelastic collision - Google Search</p>
<p>lol, ok chill! I know that.</p>
<p>no need to glorify google for science ;) hehe... hey guys post more questions if you have any</p>
<p>Fiona is correct, elastic vs. inelastic is determined by whether the kinetic energy is (elastic) or is not (inelastic) the same before and after, and certainly kinetic energy is an SAT-level topic. However, most physicists would consider a reaction that changes the identities of the particles involved to be inelastic regardless of conservation of kinetic energy.</p>
<p>yes i would very much like to know what happens in the superconducting state.</p>
<p>also what are fractals? lol</p>
<p>thanks.</p>
<p>What constants are you expected to know? (I mean memorize, not recognize).</p>