<p>Would anybody be willing to make a consolidated list of answers please? :)</p>
<p>Mrcool, I don’t remember the exact question, but I think that momentum isn’t conserved if there are outside forces acting on the object, such as friction.</p>
<p>Force is definitely 10N. If two objects are hanging from each side of the scale, then each is pulling down on the scale. If these objects had been horizontal (theta = 0) then the force would be 20N. But since the angles (I assumed 30 degrees) were greater than 0, and 10N was the only option less than 20N, I picked 10N. NET force = sin(theta)mg.</p>
<p>Im taking the physics test in june. What are the major equations i should memorize (or should i just remember all of them)? thanks.</p>
<p>born4soccer09145, your best bet is to get an SAT review book and READ THROUGH IT. There were a few factual things, such as what a transformer was, how a cathode ray works, etc. And know waves and optics (personally my weakest section). You should be fine as long as you read your review book! I had a barron’s, and it covered a pretty solid amount. GOOD LUCK!</p>
<p>thanks silveroctopus. i did buy a PR review book. but i mean which formulas are guranteed to show up on the test?? im sure kinematics should show up,right? but what others are guranteed?</p>
<p>i have the Barrons review book but it is written in a way that is quite different from the textbook I use at school.</p>
<p>I’ve never even seen half the equations in the book! Do you even need all those?
(like the copmlicated equations for trajectory of projectiles. Don’t know how to write them here.</p>
<p>Is your school textbook (Holt physics, 1997 edition) and spartknotes good enough for sat II physics revision? I’m aiming for an 800 by the way. I’m still going to take the Barrons and the official practice tests.</p>
<p>How does one recommend studying for this examination?</p>
<p>impetuous, the Barrons practice tests are really crap so you only have the 3 sparknotes tests so use them wisely. The Barron’s book is so much easier than the actual one. So if you can’t get 800 on that, don’t expect to get 800 in the real one.</p>
<p>@Bassir:
I had 3 weeks to prepare for Physics AND math II. I realised that practicing for math was useless because if I tried to try for both, I would have to retake both of them. So in 3 weeks I just read through the topics I had not yet covered in the IB (The course I’m taking at my high school) and memorized the formulae. I personally don’t think it’s too hard - it’s just about memorizing everything - and the good thing is, you don’t have to memorize everything perfectly, since it’s multiple choice. </p>
<p>My suggestion is take a practice test on sparknotes first, see how you do - if you can get 600 without any studying at all, you’re on the right track. I got 620 the first time taking it - I answered everything I can just using my knowledge from the high school course I was taking. I then reviewed all the questions and studied the topics I haven’t covered in the past - it went up to 740. Then all I did was just revise and make sure I remembered all the concepts and names and formulae. I got 760 on the third sparknotes test, and got 800 on the real thing first time.</p>