<p>I messed up on the one about the “which one creates this type of image” and it was an image on the oppisite side. I first had just convex mirror then i put convex lens along with it</p>
<p>Just convex mirror. You can get 20 wrong and keep a 700.</p>
<p>Is that good enough for ivy leagues or mit ?</p>
<p>Ohh man. Qhat did you guys get for those precise measurement answers.</p>
<p>What did you guys get for the question that said child is 3.5m in front plane mirror. Adult 7m behind mirror. How far is adult from image of child.
10.5m right?
And also about the picture with a cm ruler with a shaded thing by it.
25.5 +/- .001 cm?
And for the one the Velocity vs Time graph where it started at 20m/s for 1 minute then linearly decreased to 0 m/s at 2seconds.
was the answer for acceleration at t=2, 20m/s^2?</p>
<p>10.5 yes.</p>
<p>The measurement was the one that was 25.5 but was less accurate, because that ruler didn’t measure that accurately (I think). </p>
<p>I recall some 20 related to acceleration… but I honestly have no idea what problem you’re talking about so don’t take my word for it.</p>
<p>What was the fiber optic cable one?</p>
<p>perpendicular</p>
<p>superconductor: i thought it was functioning at high temperature levels. but if low, then the low temp electronic was right.</p>
<p>I chose perpendicular too. Does anyone remember the question about the magnetic field that has one of the answers as " cannot determined because the magnetic field is unknown"( I don’t remember exactly but kind of that)?</p>
<p>Does anyone remember the question with the picture and the reflecting light rays?</p>
<p>i too got 10.5
it was cannot be determined for the magnetic field
and it was not 20m/s. The units were in minutes, so to convert to m/s you do 20/60 which is .33
it was like 25.5 ± .01 or whatever the least accurate one was, you cant do .001 accuracy yon a ruler that doesn’t tell you the hundredths </p>
<p>in regards to the person questioning about a 700- MIT’s minimum has tended to be around a 740 on physics, but in all honesty people w/ 800s wont get in too. If you’ve taken the AP Test and performed well, im sure that getting a 700+ (instead of a 800) will cancel out the impact of it. They get a lot of highly talented students each year and the test scores, while being the first determinant, aren’t the only determinant.</p>
<p>what was the question with a I, II, and III with different rulers?</p>
<p>
</p>
<p>I chose for mechanical parts in engines thinking better over kitchenware because I remembered that some trains in Japan using this technology has surpassed speed of sound in 2005</p>
<p>How was Physics compared to earlier papers if anyone has done them?</p>
<p>^its just a mixture of Latin, English and French. If your good in languages you can crack it lol</p>
<p>I screwed up Physics skipping the last ten or so questions. I really didn’t understand that SAT was testing your cognition speed more than your accuracy, and no one in my school usually takes SAT tests, and I had to self teach myself a lot of stuff that wasn’t covered in the Edexcel specs during the last week. </p>
<p>On the other hand why doesn’t the collegeboard website offer past papers?</p>
<p>For the ruler question I put 25.5 ± 0.2 . I never came across such questions, what the idea behind them. and is my answer right?</p>
<p>Wasn’t the ruler question 26±1cm?
Think about it, the smallest division on the picture was 1cm, so the smallest division a person can make is half the smallest division: 0.5 cm.</p>
<p>No choices were ±0.5cm, you can’t go below that (0.2, 0.1, etc)
BUT, 26 cm ±1cm, yes…</p>
<p>The answer was 3.5 for the adult and child mirror question. I remember a question like that on sparknotes. The images reflect all the way back to their object for plane mirrors.</p>
<p>@mbob99 no it was 10.5. Source: Barrons
@humberthumbert no it was not 26±1 cm because 1) the line showed that it was well behind the 26 mark, assuming it was ±1 cm from 26 would be a fault and incorrect assumption
You KNEW that it was past the 25.5 mark, so the answer had to be some value from there.</p>
<p>@tips1660 the image comes right back to the object for plane mirrors. So you just subtract their differences</p>
<p>@tips1660 Even though it was below 26 cm, the answer is 26 PLUS-MINUS 1cm, which would be 26-1= 25 cm, so its the best statement in terms of uncertainty (the smallest division you can make is 0.5 cm) </p>
<p>Just even thinking about it simply, none of the first four choices were possible because the least uncertainty possible is 0.5 cm, and the first four were 0.1, 0.02, etc.</p>