AP Physics 2 2018 Free Response Solutions

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[petervanburen]

Just had a chance to look at this as I am reviewing old exams with my students. One note I would point out is that the phase change for question #4 part b would be between the air and oil since the index of refraction for air is less than that of oil. There is no phase change at the oil/water interface since the index of refraction of oil is greater than that for water. Also, the wavelength of light would change in oil which further contributes to the interference described in the problem.

[PenguinPat]

Phew! I think I did really well! Thanks Mr. Fullerton!

[beverlylehr]

Mr Fullerton... Remarkable video re ap physics.. I have watched all of the you tube videos. Okay... I bet your daughters, father, Ron and Mom understand. Please know that i watch in awe !!! Pinky

[Smokie_bear]

26:09 why don’t we include the volume of the steel beams when writing density of water times volume of boat times g? So instead of writing Vb, write Vb plus N Vsteel

[AqwRayAE]

Hey, when are you releasing the solution to the 2018 AP Physics C Mechanics exam ?

[dreadpiratedalton]

Hey Mr.Fullerton thanks for this video, I was just curious in your opinion, how many points they would take off if our final express for the number of steel beams was (Mboat - Pwater*Vd)/Psteel*Vsteel instead of (Pwater*Vd - Mboat)/Psteel*Vsteel, this would give you the correct number just the negative of it(I made a dumb algebra mistake). Thank you