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

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Khan Academy Physics

Khan Academy Physics

8 жыл бұрын

In this video, David quickly explains each torque and angular concept and does a sample question for each one. Created by David SantoPietro.
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Пікірлер: 110
@jasonoh8403
@jasonoh8403 2 жыл бұрын
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
@psych0-shorts
@psych0-shorts 2 жыл бұрын
LMFAOO
@jayjo8665
@jayjo8665 2 жыл бұрын
@@psych0-shorts not us watching this day before to cram 😭
@psych0-shorts
@psych0-shorts 2 жыл бұрын
@@jayjo8665 LMAOOOO
@psych0-shorts
@psych0-shorts 2 жыл бұрын
@@jayjo8665 did it for chem doing it for physics 😎
@nlhn638
@nlhn638 2 жыл бұрын
Especially when your teacher doesn't actually teach you most of the AP stuff.
@notkatelyn8734
@notkatelyn8734 4 жыл бұрын
this is my least favorite ap physics 1 unit for sure
@Aurora-ps2rg
@Aurora-ps2rg 3 жыл бұрын
@Cade Bentlee why did u hack her insta
@ieatgrass108
@ieatgrass108 3 жыл бұрын
@@Aurora-ps2rg they are both bots lmao.
@Limbaugh_
@Limbaugh_ 3 жыл бұрын
Havent paid attention all year let’s get this 3 tho baby
@flootz6719
@flootz6719 3 жыл бұрын
you know how we do it
@carolinemendell1963
@carolinemendell1963 3 жыл бұрын
we just keep moving forward until all our exam scores are mediocre
@patrickdoyal2950
@patrickdoyal2950 4 ай бұрын
What y’all get
@thesuperiorinferior7844
@thesuperiorinferior7844 3 жыл бұрын
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.
@prodbyp4
@prodbyp4 2 жыл бұрын
how did u do
@thesuperiorinferior7844
@thesuperiorinferior7844 2 жыл бұрын
@@prodbyp4 pretty sure I aced this test last year. Im studying for the AP Physics 2 exam now
@prodbyp4
@prodbyp4 2 жыл бұрын
@@thesuperiorinferior7844 nicee
@nateblake6688
@nateblake6688 Жыл бұрын
I’m in the exact same situation rn😭 test is tomorrow and haven’t done any work
@advancedstudy0
@advancedstudy0 7 ай бұрын
Any new AP Physics updates @thesuperiorinferior7844 ?
@jennymathews4292
@jennymathews4292 3 ай бұрын
As USAFA cadet currently on Academic Probation, thank you
@alexrosales5832
@alexrosales5832 5 жыл бұрын
This is insanely useful
@chongchengxu8506
@chongchengxu8506 2 жыл бұрын
Thank you Khan Academy for helping me understand! You are such a life-saver!
@serenashah9630
@serenashah9630 4 жыл бұрын
godsend. explained so well
@major9062
@major9062 4 жыл бұрын
whos here for the 2020 ap physics 1 test
@user-qt6xi9ny6i
@user-qt6xi9ny6i 4 жыл бұрын
Lol I have 5 hours left
@aidanshea3128
@aidanshea3128 4 жыл бұрын
@Michael Patton 2 hours until i go in
@user-qt6xi9ny6i
@user-qt6xi9ny6i 4 жыл бұрын
@@aidanshea3128 damn wish you luck
@summerblade3790
@summerblade3790 4 жыл бұрын
good luck y’all
@alyzaharris4810
@alyzaharris4810 4 жыл бұрын
Good luck y’all. Don’t know what the heck I’m doing but Fuck it we ball
@charliemartinez7595
@charliemartinez7595 Жыл бұрын
Very clear. Thanks.
@georgeredfern5526
@georgeredfern5526 2 ай бұрын
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!
@tune6000
@tune6000 4 жыл бұрын
I’ve been on opium for the last ten days .
@prequelanimations539
@prequelanimations539 2 жыл бұрын
cramming the day of the test
@MildSatire
@MildSatire 3 жыл бұрын
Who’s here for the 2021 AP Physics 1 Exam
@thesuperiorinferior7844
@thesuperiorinferior7844 3 жыл бұрын
yezzir
@MildSatire
@MildSatire 3 жыл бұрын
@@thesuperiorinferior7844 hell yeah
@thesuperiorinferior7844
@thesuperiorinferior7844 3 жыл бұрын
@@MildSatire feeling confident?
@MildSatire
@MildSatire 3 жыл бұрын
@@thesuperiorinferior7844 hell no
@thesuperiorinferior7844
@thesuperiorinferior7844 3 жыл бұрын
@@MildSatire you got discord bro?
@aidancole5611
@aidancole5611 3 жыл бұрын
Test in 3 hrs let’s go
@prehstawn3130
@prehstawn3130 3 жыл бұрын
test in 30 minutes lets gooo
@aidancole5611
@aidancole5611 3 жыл бұрын
@@prehstawn3130 you got this
@yeme4438
@yeme4438 3 жыл бұрын
Same, goodluck to both
@aidancole5611
@aidancole5611 3 жыл бұрын
@@prehstawn3130 well that sucks
@aryamankukal1056
@aryamankukal1056 Жыл бұрын
howd it go
@twilightbird2842
@twilightbird2842 2 жыл бұрын
ap in 2 days tysm for this
@celes-p
@celes-p Жыл бұрын
praying to at least pass this exam T-T
@I-used-to-be-orcaz
@I-used-to-be-orcaz Жыл бұрын
praying for a 4
@musiclamar4458
@musiclamar4458 4 жыл бұрын
At 16:36, why is the inertia of the clay ball sticking to the rod not 1/3 ML^2 ?
@jarreddrickler298
@jarreddrickler298 4 жыл бұрын
rotational inertia = mr^2; in this case length=r
@musiclamar4458
@musiclamar4458 4 жыл бұрын
Jarred Drickler oof that reply after physics exam
@trevorwallace3266
@trevorwallace3266 3 жыл бұрын
Because you’re treating it as a point mass moving around the axis
@aryanshahu6167
@aryanshahu6167 2 жыл бұрын
Because the total inertia is the inertia of rod + point mass so 1/3 3ML^2 + ML^2 is the total inertia
@stevenlin6106
@stevenlin6106 Жыл бұрын
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.
@nabeeladam3045
@nabeeladam3045 3 жыл бұрын
any way we can download these notes ?
@carultch
@carultch Жыл бұрын
On my computer, there's a "print screen" button, which takes a picture of whatever shows up on a screen, and stores it in memory. Then I can CTRL+V in an image program and save a copy of my screen as an image file. Look up "how to take a screenshot on a __computer type___", if you don't have this button.
@lightningmeteor8757
@lightningmeteor8757 4 ай бұрын
11:05 how did you get 1 for summation of torque if counterclockwise is positive, so wouldn't it be 3-4 = -1??
@medivald2
@medivald2 4 ай бұрын
The direction is negative. However, the magnitude of the acceleration is positive because the rod begins to accelerate rather than deaccelerate
@parky7417
@parky7417 Ай бұрын
its asking for magnitude so it didnt really matter. just looks cleaner. it would be negative if it wasnt asking for magnitude
@gamingseizure
@gamingseizure 4 ай бұрын
Me when my teacher for AP Physics 1 only has a degree in history
@sarpyalcn4074
@sarpyalcn4074 Жыл бұрын
tomorrow i will take my final exam, i'm on the edge of failing. wish me luck
@zoetarrach8301
@zoetarrach8301 Жыл бұрын
taking the exam in 3 hrs gang please rise✊✊
@prakhyatkethamukkala2145
@prakhyatkethamukkala2145 2 ай бұрын
at 10:39 aren't both force vectors still counter clockwise??? I think im stupid
@prakhyatkethamukkala2145
@prakhyatkethamukkala2145 2 ай бұрын
im stupid nvm
@benjamin4624
@benjamin4624 2 жыл бұрын
Anyone here before the 2022 AP physics test
@LeanVolcano
@LeanVolcano 2 жыл бұрын
Mine is in a couple hours and I don't think I've ever seen this unit before, we're gonna do great. And then AP Physics 2 the day after....
@iqrakhanamansari8670
@iqrakhanamansari8670 3 жыл бұрын
Is this 12th grade physics in USA??
@will_mcdermott
@will_mcdermott 2 жыл бұрын
10-12th
@YurFaceMakesMeBarf
@YurFaceMakesMeBarf 2 жыл бұрын
@@will_mcdermott 9th-12th*
@will_mcdermott
@will_mcdermott 2 жыл бұрын
@@YurFaceMakesMeBarf people have different counties
@aryamankukal1056
@aryamankukal1056 Жыл бұрын
ppl usually take it in 11th
@orang1921
@orang1921 Жыл бұрын
who's here for the 2023 AP Physics 1 exam? i know i am
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