<p>@ccurser001 planks constatntis 6.68<em>10^-34 and i believe they gave us a frequency like 6</em>10^17. So as long as you remember you subtracted the exponents and then added one bc you had to move over the decimal because 6.68 times 6 is approx 40, then i think you’re okay. </p>
<p>@Fizza777 got that too</p>
<p>Or F = qE, so you’re probably right. ****!
Did by any chance the one with greatest mass have the greatest number of protons?</p>
<p>I thought like this…F=ma, so the bigger the mass the bigger the force for both. :S</p>
<p>Ah sadly no. But I did chose that the switch would be open for that last emf question! </p>
<p>@rm22333, I did that too. It was an easy question.</p>
<p>Ye I know the one with the plank’s constant was easy, but I was like how can 6<em>6 give me a 4 in my answer. I know the arithmetic is simple, but during the test, I didn’t think 6.63</em>6 could give me 40. They should at least allow us a scientific (non-graphing) calculator. Take the one where they asked us for the vertical/horizontal components of that vector. i know it was 1.7 and -2.5, but c’mon!</p>
<p>Did anyone get the one with the 20N thing being pulled up in constant velocity by 2 amperes and 12V???
I figured AFTER the test that I should’ve done: Pelectric = Pmechanic…IV = Fv</p>
<p>what about the x = x + v + 0.5at^2, it was block sliding on an inclined plane, right?</p>
<p>for those who already took the sat physics, what do you predict the curve for this one will be?</p>
<p>@ccuser001. Since all the answers had 4 in them, it was obvious the product would begin with it. Our concern was finding the right exponent. 
As for the components, sin30=1/2 so 3.3sin30 would be something just above the half of 3. The y component was negative because the vector was going down. So we just had to choose the answer in which x=1.7 and y was something negative. </p>
<p>I left this one too! God why didn’t I think of Iv=Fv there? Sad. :(</p>
<p>And yes, that’s what I chose.</p>
<p>Yup inclined plane.</p>
<p>I don’t remember the one with 20N, 2A, and 12V at all for some reason</p>
<p>WHat did you guys put for the diagrams with the magnetic field and the wires</p>
<p>Fizza, was this test harder than other sat physics tests or are they all like this? I never took one before, so if you took, could you tell me what you think about the curve?</p>
<p>magnetic field and wires…the one with the positive and negative terminal, answer was B, currrent as clockwise.</p>
<p>significant numbers: 2 decimal places after the decimal point, right?</p>
<p>The diagrams…I presume the answer was A (not sure of the picture), the first one. </p>
<p>the plane was northwest right? A?</p>
<p>ye northwest, but kazteq, are you talking about the magnetic field surrounding the wire where you had to choose a picture? I’m pretty sure that was B, clockwise current.</p>
<p>I guess I picked B. It was a picture of a magnetic field circling around the wire yes. Then, what was in picture A?
Other questions,glowing ‘wire’ is the brightest…the weird velocity graph that filled the whole page I believe was D (the lines did not go negative)</p>
<p>I put northwest for the plane one</p>
<p>Graph question in part A: Solid water and vapour…? Each answer was A and D
The point which goes to the top: D (??=3=)
mirror: 0.025</p>
<p>No ccuser I haven’t. But I’ve always heard that sat physics is always hard. </p>
<p>And no! The lengths were up to 2 dp but I the significant figures were 3. From what I seem to recall from pr, the significant figures of the answer should be same as the values used. Or was it dp? I can’t remember. :X</p>
<p>I was so confused about that magnetic field question… Answer B was an obvious choice but when I used the right hand rule, the direction of the magnetic lines was opposite…</p>
<p>Which number was that one? Also could you elaborate please.</p>
<p>I’m still trying to figure out where I ran out of time lol… I know it was more than 60… which question was around number 70? U.U</p>
<p>How is 74 “open switch”</p>
<p>If the switch is open, the potential difference between B and A is zero.</p>
<p>The emf of the battery is still non zero.</p>
<p>@Fizza</p>
<p>Charges go from positive to negative. The current is downward, so the magnetic field is counter clockwise.</p>
<p>What did you guys get for 75 with the two weights?</p>
<p>I answered 75 with the logic of a child. I said it was A. @SgtGutter was that what you got?</p>
<p>Also, I can vaguely remember the “open switch” one. What did you say SgtGutter? and why?</p>
<p>@sgtgutter, the pd was across the battery and it can’t ever be zero. The battery has got ‘a positive plate and a negative plate’ so there has to be a pd between them. What did you choose? </p>
<p>Ah well I was very careful about the direction of the current and I still got an opposite direction of the magnetic field…</p>
<p>What was q75? Can someone remind me?</p>