***SAT PHYSICS 2014****

Test Preparation SAT Subject Test Preparation
81

<p>Guys the pendulum question the answer is decreasing the length
T=2pi(l/g) </p>

82

<p>DIdn’t the question ask how to decrease the frequency? I remember seeing that and realizing they tricked me so I changed it the moving to a higher altitude. Where g is smaller thereby increasing the period and reducing the frequency.</p>

83

<p>@IPARAI the frequency one was with the mass hanging from a spring, not a pendulum. </p>

84

<p>@zzztttwww‌: Don’t repeat the question that are already discussed. </p>

<p>

</p>

<p>Did you take the US or International? </p>

85

<p>@KaranMIT
International
Is it even the same test?</p>

<p>I put inclined ramp with frictionless surface</p>

86

<p>@IMTLD1:

</p>

<p>No, apparently, US test are much easier, I’ve heard. </p>

<p>

</p>

<p> That would be correct, lad. </p>

87

<p>I am sorry my friend but such law that states that there would be no accelaration is only applied when the masses are at equlibruim with each other in this case the initial postion must be the same . If the masses were equal it would restore itself to their eequlibrum postion where both masses are at the same height </p>

88

<p>@Mrmostafanasser‌: That’s true if and only if the mass of string and the gravity of string is accounted, but NOT when it is negligible. </p>

89

<p>KaranMIT, international and US tests are the same. Infact, they’re even recycled between one another.</p>

90

<p>Noo my friend what you did was use the law which is (m1-m2)/(m1 +m2)xg =a which accelration is zero so you asumed that m1 and m2 are equal but that rule is used to predict the motion of the particles when they are placed in the same height just like a balance . For example if you place a </p>

91

<p>that question wanted to know when a kinematics equation was applicable. Flat ramp is the only one that works for that. circular ramp can have rotational equations involved, and the ramp without friction doesnt have constant values</p>

92

<p>You can only use kinematic equations when acceleration is constant.</p>

<p>Also refrain from using colored text, please and thank you.</p>

93

<p>@zzztttwww
AND yes, inclined ramp with frictionless surface has constant acceleration
g sin theta </p>

94

<p>So how’d everyone do?</p>

95

<p>640 Math level 2; 620 - Physics; screwed it -_-. I thought the lowest I could get was 700, but the scores were disappointing. Moreover, unfortune has bestowed upon me because I cannot re-take Subject tests any longer. Rest in kill; it’s time to say bye to my dream school ;/ . </p>

96

<p>DO NOT POST TEST QUESTIONS. THIS IS NOT OKAY AND NOT HELPFUL. MODERATOR!!! =; </p>

97

<p>@FizzyIzzy Moderator here. Don’t shout.</p>

<p>As repeatedly stated, discussions about tests is AYOR.</p>

<p><a href=“http://talk.collegeconfidential.com/sat-act-tests-test-preparation/642156-defy-the-college-boards-rules-at-your-own-risk.html#latest”>http://talk.collegeconfidential.com/sat-act-tests-test-preparation/642156-defy-the-college-boards-rules-at-your-own-risk.html#latest&lt;/a&gt;&lt;/p&gt;

98

<p>@ShaneBlakeEy‌ I got 720, so i’m pretty happy. how about you?</p>

99

<p>I got a 790! I was really happy with outcome. I took the test in October and got a 770, so it was a pretty good increase. The most significant increase was in my math, where I went from 760 to 800. I’m so excited! My scores are going to MIT, Carnegie Mellon, and (if I get deferred) Caltech. </p>

100

<p>@rkepp12 what does deffered mean ?</p>