I really liked this test compared to the last one I took (October). I had a feeling they would put more E and M and Modern Physics. I thought this was test was really fun (I’m going into physics), but even I can admit that my brain wanted to cry
whatd you guys say for the boat one
@collegeguy123456 what was it asking for again?
@yolomaster98 it asked what you can infer about the boat
what was it doing
@collegeguy123456 I think the answer should be boat is faster than waves. Here is a resource.
http://www.district196.org/avhs/dept/science/physics/physicsweb04/AVHSPhysics/waves-notes.html
Hopefully I get it right!
It was moving in the water with a wake behind it.
oh i said it was faster cuz i was thinking about the doppler effect @collegeguy123456. Can anyone else verify?
The boat must be faster, otherwise the water waves would have traveled the same distance, or greater distance, the boat did in the same amount of time.
How many questions can you get wrong and still get 800?
Usually you can lose -12/13 and get 800. But since so many people found this test so hard it could go down to -15
this same test was taken in may 2011 and june 2014 and now 2015. that completes the hattrick…
Just looked at the 2014 thread. This is ridiculous!!!
And i found an explanation for the boat question
For the water wave crest boat problem thing, it had no effect on speed:
“Wake patterns in water[edit]
Waterfowls and boats moving across the surface of water produce a wake pattern, first explained mathematically by Lord Kelvin and known today as the Kelvin wake pattern. This pattern consists of two wake lines that form the arms of a V, with the source of the wake at the point. Each wake line is offset from the path of the wake source by around 19° and is made up of feathery wavelets angled at roughly 53° to the path. The inside of the V is filled with transverse curved waves, each of which is an arc of a circle centered at a point lying on the path at a distance twice that of the arc to the wake source. This pattern is independent of the speed and size of the wake source over a significant range of values.”
It only tells you that the pattern is not affected by the speed of the wake. However, it says nothing about the speed of the waves.
I already verified with my Physics teacher. It was an old AP Physics 1 problem. The answer is boat faster than waves :))
guys dont scare me like that
If anyone could please estimate my score range, I would really really appreciate it:
I left 4 blank.
I could have gotten 7-13 wrong.
Really hoping I get better than a 720 (What I got on this test last month)
@Anubis13 if you got 13 wrong and left 4 your raw score will be 55 . If the curve is lenient(hope so) 55 will be 750. I got a 730 last time 
. This time I left 2 and got 7 wrong so hoping for an 800 
What do all of you think is the maximum number one can get wrong without any omissions and still get an 800?
@Anubis13 I think your score should be close to 770.