Torque: Crash Course Physics #12
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- เผยแพร่เมื่อ 21 พ.ค. 2024
- What is torque? This is one of those things that you may have heard about in passing but never really understood. In this episode of Crash Course Physics, Shini sits down with us to discuss what torque is, how it works, why it works, and what it all has to do with this thing called "moment of inertia."
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I'm learning my whole semester in one day
"you know how physics loves ramps, especially hypothetical ramps" , please tell me something more true than this
passive-aggressive physicists
the key to watching these videos is to pause to think on and rewatch certain moments if you don't grasp them immediately. These videos also help in conjunction with reading or other videos. I'm here because my physics textbook didn't explain what torque was but launched into a 15 page discussion of magnetic torque
Its not that she speaks too fast, its that they expect you to have a background in this, its like a review
The jump cuts don't help either.
I have a back ground in this and its treating the fundamentals like its something we can just skip over. Like the units of torque are crucial to understanding torque. ITS NOT A FORCE!!! is what it tells you. As soon as you say its not a force then the question of what is it really???? can be answered. Thats when you begin to understand it.
@@gusbisbal9803 This is called CRASH COURSE FOR A REASON. SHES SUPPOSED TO HELP REVIEW THE BASIC TOPICS IF YOU WANT SOMEONE TO HOLD YOUR HAND AND WIPE YOUR NOSE FOR YOU, GO TO YOUR TEACHER OR KHAN ACADEMY
For anyone watching Crash Coures physics for the first time:
Dont get tensed by watching these videos.. These videos are best for reviewing the concepts after learning the topics beforehand.. They are not recommended for anyone who wants to learn these concepts afresh.. Dont freak out after watching these videos, it's fine!!
the whole point of crash courses is to get people an understanding of a subject, not to review it
@@kikumayumi9219 Exactly! And that's what disappoints most of us watching the videos..
@@shreyaprakash how so does it disappoint us, this crash course was a great help for me when I watched it
I think you must be having at least some basic understanding of these topics.. My point is that people who want to start learning physics or those who have no background knowledge of the subject will find it extremely hard to grasp the concept.. It's a generalized view..
I really like the way she... torque
HAHAHA
good one brah
OMG AHAHA. THIS SHOULD WE TOP COMMENT
yes he definitely got me xD
loool
"Have you ever pulled a door open? Me too!" I love it. 1:04
The One Ring comes third, but it rules them all!
...and my axe!
RISE!
I have a cock ring
A male chicken ring?
One Ring to rule them all, One Ring to find them,One Ring to bring them all and in the darkness bind them.
I understood none of this. But, I feel smarter after watching this video.
A science lesson with a mario box, the one ring, and a dragon ball.... I'M IN!
KingJokerRock also the ring is from 'lord of the ring'🍻🔥
@@mukundyadav4445 that's why he said "the one ring" that's what it's called
Should've used a power ring from Sonic the hedgehog. Then it would've moved faster down the ramp? 🤔 Lol
my kind of lesson
I have a degree in theoretical physics, and I just adore this series!
These courses are pretty good for brushing up on - or repeating - physics classes, but I don't think they're very useful as a introduction to the subject.
I understand that you need to solve problems to get to the core of physics, but listing a bunch of equations and explain their consequences isn't going going to give most of the audience a deeper understanding (this is an assumption!).
I know the course would be taught in a much slower pace, but for really interested audience with a first hands experience, this is not building a solid foundation (in my opinion). I think it should be a blog post deriving all the equations displayed in the video for those who need a solid understanding of the equations.
Don't take me wrong here, but I think this would please a bigger audience than the current setup.
I agree. I think it would be better if the math were mentioned for reference, but the instruction kept mostly to the conceptual.
I'm not sure how much more conceptual you can get than this...
You may be right in some way, but in my opinion the most important thing is how cool is this vid so people like me, with no background in physics, take interest in this topics
I disagree. Most of the edutainment videos on TH-cam are lacking the solid, somewhat rigorous aspect of that particular branch of science they currently teaches. These CC Physics videos do not: they have it in the form of the necessary math. The best thing about them that they serve not just as introductions, but also -as you have stated- help brushing up on previously attained knowledge, refreshing them.
I'll write the exact same thing i am fond to say about this topic: if you are not interested in the nuances of mathematics, physics is propably not for you.
That's why it's called "crash course". It's not meant to be equal to an actual physics course in a school.
Thisvideojusttaughtmenottousespacebarwhenyouspeak.Thankyou.
And know I realized why my eyes had been looking at an all jumbled.
Thatsnicekeepitup
Mohammedhedidntputaspacebarbeforethankyouitsaperiodthankyouforyourtime
daveimgay
Whyutellingmethat
as usual, it's going to take a week to assimilate and fully understand the video :)
same.
isn't ur face profile from an anime? I think its name is Greed?
King PufflePuff spirited away
Yeah, that's what I thought. xD
King PufflePuff its original name was No Face
I'm giving Crash Course a shout out on my graduation... in 2 weeks!!
I actually really enjoy how this course is set up. It explains the basic concepts behind the equations so that when you go and practice the skills, you have a general idea on how to tackle them. I have to agree with the feedback others have given - you do whizz through the material. However, this medium can handle that, as you can just replay portions of the TH-cam video. Keep up the good work!
Thank you for helping me through my physics assignment. Great video!
I just spent 5 minutes of my life opening and closing my door at difference angles and lever arms
Love it, a very helpful accompaniment to my textbooks. Thank you Crash Course.
I slept through a physics class one time because I was tired, they explained torque. The teacher wouldn't explain it again.
It's been two years, but now I finally understand this concept. Thank you so very much.
to everyone saying that she is talking really fast.. that is because (if you haven't noticed) the channels name is called crash course and hence they have to explain topics quickly. I think that these videos are like reference materials that you can use to understand concepts quickly once you have a brief idea of the concepts.
This video feels like a huge injection of liquid physics into my brain. Thank you!
Im doing Marine Engineering where there is a dynamics module which I did just not understand at all, these videos are so useful.
Thanks.
Moments of silence.. This video has none!
Nope, just inertia
"We have a box, a ring, and a marble."
(Mario cube, LotR ring, and dragonball appear on ramp.) This is gonna be good.
Very detailed explanation. Thank you!!
The one youtube vid i look forward to all week!!! awesome
This series is so good.
This helps a lot, just what I need for exam review!
these physics videos are really helpful especially before my test
now you know you should buy your future wife a box so you guys can have a smoother relationship
Don't forget to put the ring inside the box
@@davet5223 Ayyyyy
this video was very helpful, thanks guys
that helps me a lot .GREAT THANKS for your useful videos.
That was clear and went right in. Thanks
Mr.Green , this kind of videos make crash course my favorite channel.
U explaination is awesome my mind blows up
you explained this way better than my university lecturer, good job!
I could not get through Corona virus distance learning without this. Thank you!
Great one.
Great video!
best best best best best!!!!!
i could not get the chapter while reading from book but crashcourse made me understand it soooooooooooooooooo wel!!!!!
thanks a lot lot
First time using crash course for physics and was expecting hank but I was pleasantly surprised the speed she talks is nice
The short video really did good job to make a brief interview of phsical knowledge.
your videos are awesome now I can understand
7:17 i almost had a heart attack, i sat in the libary and thought it was a school shooting lol
That’s crazy, I thought the box would be last and ring would be first since it looks like a wheels. Thanks Dr Shini Somara!
i am really surprised how you taught that........i didn't ever felt it that easy and intresting......i must say good job
thanks...im finally read for my test tomorow
There's an error at 6:27 the second part of the equation has KErot labeled as "kinetic energy of translational motion" instead of "kinetic energy of rotational motion"
Good video
Thanks a lot mam 😊 . You are awesome
I love all ur crash course video ! This physics is awesome.But I have a request all your physics crash course video are on class 11 topics I would be happy to have some new videos on class 12 topics
ı really liked it ! thank you very muchhhh
Just refreshed and boom
Learning physics from Symmetra
well done
These videos are incredible. They are really helping me with my college course. Thank you! :)
My head has blown up, I wanna cry, and my acne is back after watching one video
Pretty and smart I think I am going to be watching more of these videos
I love you guys
i love you, thank you!!!!!
I love your videos! please keep it up!
May I kindly suggest to take a moment to breath... hehehe the paste is so fast! :) lil breaks :))
hay love the show!!!!!!!!!!
I am studying parallelogram of forces and i cant seem to find the topic on your channel do you have it on the channel and if not will you please do a episode on it please : P
She is gorgeous btw.... And I love her hair 😍
God yes
She is, not that it matter really.
stop objectifying her! she's here to teach physics!
Felds Liscia whatever, everything is relevant
go to India..they literally all look like her.:P:
I love the Elvish characters inscribed on the ring! Now I know why it's difficult to roll a ring into a fiery volcano--it's better to get someone to bite it off your hand and fall instead.
Thanks for helping me out with class 11 physics . Exam tomorrow
kindly also make a video on projectile motion!
thank you
i would love to see one of your videos about the Phoenicians
great!!
I'm 13 in eight grade and I'm watching this because we have to learn about it soon. Im trying to be above everyone else!!!!
pandora started a dubstep song at the beginning of this video. I was so hyped on when this race started.
@5:05 Should it not be "kinetical energy of rotational..." in the bottom equation ?
Watching at 1.5 speed because I'm a physics grad student, but I feel compelled to watch everything Crash Course puts out.
It would be great to have handouts of these lessons
Loved the video but in the case of the ramp, I'm pretty sure that friction between the box and ramp is kinetic, there is relative motion B/w the two surfaces..
that pyshics theme song intro gave me chills just like the philosophy one
This saved my life, thank you 🎷🐛
love it
With all the topics you have explained one physics course at my uni would be covered. Are you planing on continuing with electrostatics or fluids?
perfect for review
As a car guy, I very much appreciated that video. Solid host too
I am sorry, but how would the box get down before the ball or the ring? We already assumed that the surface is frictionless and so there would be no friction force that would cause the ring, or the ball, to rotate. Therefore, there would be no loss( or transformation) of potential energy to rotational energy of either the box or the ball.
𝐓𝐨𝐫𝐪𝐮𝐞 𝐰𝐢𝐧𝐬 𝐫𝐚𝐜𝐞𝐬
This looks threatening.
You explained it amazingly! Thank you so much crash course now I understood the torque😍
i like this
what a beauty
I swear to god no matter what im learning theres a crash course for it
If the ramp only allows static friction and not kinetic friction, then the box shouldn't go anywhere if it doesn't rotate. In order for the box to slide down the ramp it needs kinetic friction. Static friction would mean that the box is stationary.
I'll never watch LOTR the same way again.
Hi this is Arwen I love Crash Course!!!!!
At time 5:07 there's an error in the description of the formula for kinetic energy of rotational motion, it's written translational, like the upper one.
Very interesting. Never seen this comparison before. I’m trying to understand quantum spin by going back to classical analogies. I know I know spin is quantum but what the heck.
great
i just subscribed beacause shini samora
For a video series that has done so well avoiding jargon, this one was just filled with it.
So, what is the difference between torque, angular momentum and moment (as you often hear in engineering). All of them seems to have the same definition i.e. force x distance.
cool!
I'm barely passing AP physics yet I pass all my Duel Credit classes with 100%+ i just- feel dumb. This video is good for reviewing before a test on Torque and Inertia.