AP Physics 1 review of Torque and Angular momentum | Physics | Khan Academy

In this video, David quickly explains each torque and angular concept and does a sample question for each one. Created by David SantoPietro.

Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.

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[jasonoh]

It’s all so simple until AP Classroom asks a question about a rod attached to an axis with a string hanging which is attached to a pulley which is attached to a block, and there are no numbers

[notkatelyn]

this is my least favorite ap physics 1 unit for sure

[major]

whos here for the 2020 ap physics 1 test

[Limbaugh_]

Havent paid attention all year let’s get this 3 tho baby

[thesuperiorinferior]

Didn't pay attention in class during the entire chapter except hearing a thing or two, watched this and took the test today, felt wonderful I think I may have gotten an A. There is one I know for sure I got wrong and know what I did wrong in hindsight. You know what they say, you're smart about something when you are able to tell when you're wrong.

[MildSatire]

Who’s here for the 2021 AP Physics 1 Exam

[jennymathews]

As USAFA cadet currently on Academic Probation, thank you

[tune]

I’ve been on opium for the last ten days .

[chongchengxu]

Thank you Khan Academy for helping me understand! You are such a life-saver!

[orang]

who's here for the 2023 AP Physics 1 exam? i know i am

[musiclamar]

At 16:36, why is the inertia of the clay ball sticking to the rod not 1/3 ML^2 ?

[celes-p]

praying to at least pass this exam T-T

[benjamin]

Anyone here before the 2022 AP physics test

[prakhyatkethamukkala]

at 10:39 aren't both force vectors still counter clockwise??? I think im stupid

[sarpyalcn]

tomorrow i will take my final exam, i'm on the edge of failing. wish me luck

[georgeredfern]

I really appreciate this video; I have an AP physics 1 final tomorrow and I needed a refresh on angular momentum. This video was perfect!

[gamingseizure]

Me when my teacher for AP Physics 1 only has a degree in history

[zoetarrach]

taking the exam in 3 hrs gang please rise✊✊

[lightningmeteor]

11:05 how did you get 1 for summation of torque if counterclockwise is positive, so wouldn't it be 3-4 = -1??

[stevenlin]

I wonder the I = 2/5 mr² is the inertia for ball not for sphere. In sphere’s case, it seems to me to be 2/3 mr², according to my calculation, and 2/5 mr² for ball.