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Simple Harmonic Motion: Crash Course Physics #16 

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Bridges... bridges, bridges, bridges. We talk a lot about bridges in physics. Why? Because there is A LOT of practical physics that can be learned from the planning and construction of them. In this episode of Crash Course Physics, Shini talks to us about a particular mistake made in engineering the Millennium Bridge which allows us to talk about simple harmonic motion.
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19 июл 2024

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Комментарии : 619   
@crashcourse
@crashcourse Год назад
We made quiz questions to help you review the content in this episode! Find them on the free Crash Course App! Download it here for Apple Devices: apple.co/3d4eyZo Download it here for Android Devices: bit.ly/3TW06aP
@slyrooster1241
@slyrooster1241 8 лет назад
LOL "simple" harmonic motion I remember doing this in highschool, it was hard AF. Then engineering came and made me wish I was back in high school physics
@FormedUnique
@FormedUnique 4 года назад
@Unsung Songs I'm assuming because engineering is simpler than physics
@DWchan
@DWchan 8 лет назад
D: this all sounds like really interesting stuff, I wish I understood it.
@nissenlam
@nissenlam 8 лет назад
The death eaters also made the bridge swing even worse.
@ariyatabassumabdullah1143
@ariyatabassumabdullah1143 6 лет назад
dangerouspeople1!!!!!!! Voldy made them do it
@gabbiwisteria
@gabbiwisteria 6 лет назад
I thought the dementors caused it
@abhishekpal7978
@abhishekpal7978 6 лет назад
Lol
@anirudhsreeram4015
@anirudhsreeram4015 5 лет назад
They just said Expulso! and called it a day as they watched innocent Muggles spiralling into the Thames in their cars...
@rafayajmal1839
@rafayajmal1839 5 лет назад
bahhbhbahbahhbahahbahhahbbhahbhabhahbhabhahbhabhahbhbhbhabhhabhahbhahbhahbhabhhab
@printvision7663
@printvision7663 7 лет назад
The animation at 3:54 is god sent.
@priyasehgalinfj
@priyasehgalinfj 6 лет назад
Sanjay Kulkarni true!
@HARSHVARDHAN-im2hb
@HARSHVARDHAN-im2hb 6 лет назад
Exactly
@rexbarr_5783
@rexbarr_5783 5 лет назад
This whole video is god sent.
@vivlodia
@vivlodia 5 лет назад
Ifkr
@Vividlyvanilla
@Vividlyvanilla 5 лет назад
I dont get it i mean there pretty good at editing but the whole vid is edited so why is this part good
@emlmm88
@emlmm88 7 лет назад
Great video as always. I know some people are complaining about the speed of these videos, but I actually think it's great to have such an option. For people who learn better through longwinded explanations, they can watch khan academy, and people who learn better through quick and snappy explanations can come here. The great thing about the internet and the technological age is that there has never been a more customizable learning experience. There's something for everyone. Oh and unlike crash course organic chemistry, which barely helped me at all in my first semester of ochem, _this_ series actually will get you through calculus based-physics 1 and 2 in college. I love that you aren't afraid of alienating the fans by actually getting into the technical aspects, and believe that the experience and educational value of these videos has benefited profoundly for it. Keep it up!
@funkygecko
@funkygecko 7 лет назад
differnce is khan academy actually teaches you something.. and doesnt just give general information directed to 10 year olds.
@dharitgabani7032
@dharitgabani7032 4 года назад
emlmm88 enter politics
@realsteel6092
@realsteel6092 4 года назад
The problem is that in order for people to truly learn and remember the topic, they must go into much more detail and take a lot longer to explain it. The details stick instead of having information go in one ear and fly out the other.
@emlmm88
@emlmm88 4 года назад
@@dharitgabani7032 Not sure whether to take that as a compliment or an insult lol.
@Tina-ce4ls
@Tina-ce4ls 7 лет назад
I love the way the period is derived, no calculus required.
@X-3K
@X-3K 8 лет назад
7:05 x=Acos-oh my god-t
@chrischu1285
@chrischu1285 8 лет назад
Oh, my trig teacher would have gotten so angry with that...
@AdityaMehendale
@AdityaMehendale 8 лет назад
Brackets brackets brackets!
@yusufqaddura7103
@yusufqaddura7103 8 лет назад
hilarious
@lukahnapeirogon8197
@lukahnapeirogon8197 8 лет назад
NERDS!!!!
@petergeramin7195
@petergeramin7195 8 лет назад
i don't get it.
@mangotangochick
@mangotangochick 6 лет назад
I honestly loved this so much. I missed a few lessons at school on simple harmonic motion and for physics I like to see how the ideas connect and don't really like just being thrown a bunch of equations and being expected to use them with no context at all. Loved this. Related all the equations beautifully + increased my appreciation for physics xox
@leophoenixmusic
@leophoenixmusic 5 лет назад
8:25 “today learned about *basically everything in SHM* in the space of about 5 seconds”
@skreegoorb
@skreegoorb 8 лет назад
The equation animations are marvelous. Thanks for the video.
@kolbeowen3052
@kolbeowen3052 4 года назад
I love how fast she talks. I can understand better than slow boring talking.
@StewartTylerMay
@StewartTylerMay 8 лет назад
It's awesome how all this correlates to musical frequencies--amplitude, resonance, oscillation. I can't wait to see your upcoming episodes on waves.
@reginawong4628
@reginawong4628 5 лет назад
The pace is too fast for someone new to the channel but once you are used to it, you'll find it just right! I loved he videos and it's always been helping me with my Physics!
@jlou1215
@jlou1215 7 лет назад
That graph comparing the simple harmonic motion of the spring with the reference circle clears everything up for me!!!! THANKS!!!!!!
@eliebarbar403
@eliebarbar403 5 лет назад
Physics 220 final in about 12 hours and you're saving my life right now
@ayushijain8671
@ayushijain8671 6 лет назад
Excellent, damn useful for quick revision without having to read the whole chapter all over. Sticks to its name 'crash course'. Thanks!
@saun_sa
@saun_sa 4 года назад
imagine this person in her childhood answering teacher's questions
@scienceandmind3065
@scienceandmind3065 8 лет назад
Again a really nice video, I like the graphical examples for physical/mathematical expressions. As someone working in a university's institute for physical chemistry I know how many students even in higher semesters struggle with those topics. I really hope you make videos about thermodynamics, kinetic and quantum mechanics.
@yourroyalhighness6297
@yourroyalhighness6297 4 года назад
Can't we take a moment and notice that this lady is very intelligent to be able to teach all of these physics episodes?
@mattwaelder
@mattwaelder 8 лет назад
the pace of these seem a bit fast, even for someone familiar with basic physical properties
@chowtom5174
@chowtom5174 8 лет назад
That's why I keep pausing and/or rewinding the video
@rileypurcell2159
@rileypurcell2159 8 лет назад
It's the benefit of the format.
@999is666upsidedown
@999is666upsidedown 8 лет назад
Online videos of education are purposeful made at such a pace. The intent is that for someone trying to learn via video, as opposed to learning via teacher in a class room, you can stop, rewind and watch the video at any point and any number of times. So for a broad audience, people that pick up more quickly, and those more slowly, can all utilize the medium.
@thelivingglitch307
@thelivingglitch307 8 лет назад
Is .5 speed still too much?
@binaryvoid0101
@binaryvoid0101 6 лет назад
...and scene
@deblimp
@deblimp 8 лет назад
Really great video. I never saw a derivation for w=sqrt(k/m) without setting up the equations of motions and just using calc. That was really cool to see. The analogy with circular motion is something I don't remember seeing but I think thats a really great way to visualize it. 'We'll be talking about waves in our next three episodes' Hype I'm looking forward to it!
@Carrot3734
@Carrot3734 8 лет назад
I wish I had this episode when studying for my final high school physics exam last year, crash course is incredible.
@solutioninn
@solutioninn Год назад
Excellent presentation of the topic with accurate animation and the real world example in the start of the video. Keep it up.
@kascallinicharles5175
@kascallinicharles5175 11 месяцев назад
thank you so much for creating this course, as a student I have been struggling with physics for several years of my study. But these impressive work just brought physics home to me. Again, I appreciate the efforts the team has pour into this, love your work. Keep it up!
@mithilsenthilkumar3469
@mithilsenthilkumar3469 4 года назад
A huge thanks to the creators of this video for it helped me a lot. Congrats team you are doing a wonderful job. Keep going. Yay
@EZDODDS
@EZDODDS 11 месяцев назад
These videos are so amazing for anyone studying introductory physics. Thank you so much Crash Course and Shini
@GrazyGirl1999
@GrazyGirl1999 6 лет назад
thank you !! physics made easy ;) I finally understood this concept
@shwetakamble6623
@shwetakamble6623 6 лет назад
I just love the way you explain...keep it up ...I just wanted to request you that Will you please explain "undamped ,critically damped & over damped vibration" in your next video?
@andrewolesen8773
@andrewolesen8773 8 лет назад
That was a much easier to understand explanation of simple harmonic motion than anything I heard in uni. But then again we needed to know how to manipulate the differential equations behind all of this.
@ADAMSIVES
@ADAMSIVES 6 лет назад
Her beauty eclipses anything that physics can achieve.
@MegaGamingGold
@MegaGamingGold 8 лет назад
Hey!! I love these videos! Yhey teach me things that my school doesn't have time for!
@NeoRetroX
@NeoRetroX 7 лет назад
I learnt more than in 3 weeks of classes.. thx :)
@angeldude101
@angeldude101 8 лет назад
As a tauist, I can't help noticing all of those 2pi's.
@miri_kess
@miri_kess 8 лет назад
+
@gyoungsulee9234
@gyoungsulee9234 8 лет назад
+
@jatinkaushal8867
@jatinkaushal8867 8 лет назад
Yesss!!!! They were driving me nuts!!!
@Roll587
@Roll587 8 лет назад
+
@bjb2738
@bjb2738 8 лет назад
Yeah, except that diameter is absolutely useless in math. There are infinite shapes with a uniform diameter, but only one, the circle, with uniform radius. If you want to talk about how things move in time, you're talking about eigenfunctions of the derivative, which give you exponentials, which give you trig functions, which are expressed in terms of the radius of the circle and the circle constant, τ. From harmonic motion, to periodicity of trig functions, to the complex exponential, to Fourier transforms, τ shows up as the fundamental circle constant. Only when a factor of a half is involved does π appear by itself.
@BadlceCream
@BadlceCream 6 лет назад
0.75x is the perfect speed
@goldencrown6388
@goldencrown6388 6 лет назад
Bad Ice Cream omg yeahhh that's a lot better
@CamaradaArdi
@CamaradaArdi 5 лет назад
I just learned simple harmonic motion in 10 minutes. What a great video
@alexatennyson9822
@alexatennyson9822 Год назад
I love the way you talk faster, don't change it ma'am, you make an hour video in some minutes, it saves our time
@chronicandironic8701
@chronicandironic8701 4 года назад
Oh my god I never thought I’d be able to watch a Crash Course with someone speaking at a normal rate instead of 2000 words per second
@jamespeetz4008
@jamespeetz4008 4 года назад
This video made me realize how bad my physics teacher is at lectures
@saeedahmedjamali7235
@saeedahmedjamali7235 11 месяцев назад
very informative and comprehensive. I like that you focus more on concept rather that just memorizing formulae.
@supersonic174
@supersonic174 5 лет назад
this is how cram lots of information in before a physics class, very helpful
@simonbranchaud9886
@simonbranchaud9886 8 лет назад
Hello! Thank you for a great video! I'm a physics teacher, I would like to know if I could use short parts of this video inside a video I am making on the same subject. My video will be in french.
@CompanyMan4
@CompanyMan4 7 лет назад
This person should be given award, really helped me a lot!!!
@1gmpl
@1gmpl 5 лет назад
Amazing! thanks you so much! I just sat with a notebook and write what you were explain! 1000 times better then my own Professor!
@mehuljain4722
@mehuljain4722 4 года назад
That’s a fast whooping time saving, concept clearing awsm video. All basic concepts are there....I learnt that in school in 90 mins....she did this in 10 mins....wow...
@jas4768
@jas4768 7 лет назад
How does a particle (like the ball on the spring) exhibit an angular speed (omega) if its trajectory is linear? Also, wouldnt omega constantly be changing due to the changing velocity?
@michaelspurlock3096
@michaelspurlock3096 8 лет назад
Excellent explanation and graphics. Thanks.
@Lee_yourboylee
@Lee_yourboylee 8 лет назад
This is very good. For those saying it's too fast.....well, i too have to pause and rewind quite a few times so that i can understand the material, but i don't think that detracts from it. There's a limit to how easy these guys can make it. Physics requires thought. Great job, Crash Course. Keep 'em coming!
@savalavaloy3549
@savalavaloy3549 8 лет назад
Today I said to myself I would do my physics homework, then I went on RU-vid for an hour. Funny enough, I actually learnt physics today which was my original plan :D Thanks, crash course! I actually needed to learn this and my physics teacher is not good at all!
@TalesCanada
@TalesCanada 7 лет назад
perfect maam .i am an engineering student and you were amazing :)
@albaniz
@albaniz 8 лет назад
Still nice to watch crash course. You rock! Merci!
@JohnSmith-dh1jj
@JohnSmith-dh1jj 7 лет назад
amazing video, take in mind you should have read all about SHM before watching, for this is only for better understanding and falling in love with physics. not learning from scratch for most people
@EMAngel2718
@EMAngel2718 8 лет назад
I think it would be a good idea to start using parentheses when displaying the equations. As it is [using w for omega], cos w t looks a lot like cos(w)*t.
@loosekanen
@loosekanen 8 лет назад
This video was my first month of University Physics. It starts off so fun and easy...
@kishorejai9932
@kishorejai9932 7 лет назад
it may be fast but had a detail explanation about the topic thank you for your explanation. AND CAN YOU PLEASE SHARE ME WHICH SOFTWARE HAD BEEN USED FOR MAKING THE ANIMATION ?
@sea5205
@sea5205 4 года назад
I love this woman’s crash courses💜
@mengjunwei1169
@mengjunwei1169 7 лет назад
Question: at 7:05 if you were to translate this equation to the oscillating ball on a spring, would omega be just velocity max?
@SotamiesTrolli
@SotamiesTrolli 8 лет назад
Check out some clips about the tacoma narrows bridge, that's an extreme case of what oscillations can do to a badly designed bridge.
@crashcourse
@crashcourse 8 лет назад
We did a Crash Course Kids episode all about that bridge. TERRIFYING FOOTAGE!!! - Nick J.
@QueenCallisto
@QueenCallisto 8 лет назад
+CrashCourse Where is the video 📹?
@crashcourse
@crashcourse 8 лет назад
Right Here - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-TcUX6eNT2j4.html
@gigabyte2248
@gigabyte2248 8 лет назад
The Tacoma Narrows bridge failed due to aeroelastic flutter, not resonance (at least, according to the mechanics professor from my degree). Aeroelastic flutter is a positive feedback effect: as the bridge oscillated and tilted, the wind striking it at an angle exerted a force. As the force cause the oscillation amplitude to increase, the bridge deformed to a steeper angle, exerting more force and deforming it to an even steeper angle until... well, y'know
@stormkern
@stormkern 8 лет назад
Minute Physics has a great video explaining how the Tacoma Narrows case is not due to resonance.
@dassajuarez6628
@dassajuarez6628 8 лет назад
Great video! Slightly fast paced, but nothing a little pausing and rewinding can't do. Don't understand some of the people that of they don't understand everything on the first moment they just go whining around that it's too fast. Hopefully they won't expect someone to cater on their learning preferences when they are in college.
@SAMURIADI
@SAMURIADI 7 лет назад
7:06 it sounds like they did 2 recordings and put them together when she says omega
@ajayabhimanyu8840
@ajayabhimanyu8840 Год назад
Thanks a lot for everything. ❤️❤️
@cordieliajane
@cordieliajane 8 лет назад
All of you are such wonderful teachers ^_^. I understand this!
@pradeeppaudel4826
@pradeeppaudel4826 7 лет назад
awesome video and the narrator is just brilliant!!!!! Her eyes tell all the equations of SHM.. but it was quite hard to catch up the pace of the video
@aniketkumbharikar6086
@aniketkumbharikar6086 4 года назад
Good Explanation on the Topic ...!!I am Loving it....😊😊👍
@KangHyunChu
@KangHyunChu 8 лет назад
There is one more noteworthy analog between the simple harmonic motion and the uniform circular motion; the restoring force by the elastic spring matches to the projected centripetal force.
@dr.greasy1162
@dr.greasy1162 4 года назад
Why do moving back and forth, and moving in a circle look the same on a graph of position versus time?
@raven2269
@raven2269 7 лет назад
I have a test this Sunday and crash course is my only support
@uchihamadara6024
@uchihamadara6024 6 лет назад
Got a quiz on this tomorrow, wish me luck
@Daniel_Daigle
@Daniel_Daigle 4 года назад
wish I saw this before my first-year physics because this is golden
@jacksontaylor5708
@jacksontaylor5708 6 лет назад
Good video. In my physics class we were given these equations and it’s good to know why👍
@ShakalDraconis
@ShakalDraconis 8 лет назад
I think this is the first discussion of Physical Harmonics I've ever seen that didn't bring up the Tacoma Narrows Bridge.
@alkingshefo
@alkingshefo 7 лет назад
you lastly gave me a hint about the relation x=Acos(wt) i took it without understanding thanks alot
@dukesook
@dukesook 7 лет назад
These videos are amazing.
@volimsamopare6946
@volimsamopare6946 5 лет назад
3:32 best explanation ever
@fathimauvais2112
@fathimauvais2112 7 лет назад
Could u explain the difference between the first harmonic and the second harmonic and so on?
@fatimaashfaq6325
@fatimaashfaq6325 6 лет назад
Had to enable subtitles coz of the speedy explaino , anyways thank you! 😊
@emeyemeeye2787
@emeyemeeye2787 8 лет назад
Thank you so much Crash Course!
@alexplastow9496
@alexplastow9496 6 лет назад
Certainly more helpful than my physics textbook
@ayamoudallel8057
@ayamoudallel8057 5 лет назад
Thank you so much, you are amazing!
@chandraswaroop2061
@chandraswaroop2061 7 лет назад
hi shini i find this lesson very helpful and is easy to understand in few mins than my bloody nasty .... teacher thank you a lot
@simranc7690
@simranc7690 6 лет назад
Bruh saaaaammme
@fatimaisra9143
@fatimaisra9143 4 года назад
did they switch the sound of the ring and the sound of the spring? 1:54 3:55
@funkysagancat3295
@funkysagancat3295 5 лет назад
Does anyone know some weird SHM aplications? I' m looking something beyond pendulums, strings, bridges, eardrums, water tubes etc...
@JM-gu7jx
@JM-gu7jx 8 лет назад
JUST IN TIME!! YOU ROCK
@SHabbIZZLEx
@SHabbIZZLEx 5 лет назад
gotta say though.....epic intro animations u got there. Kudos~
@anujsinghchauhan24
@anujsinghchauhan24 6 лет назад
Can someone explain me why did they take Vmax at 5:00, I mean that it's not always maximum every time?
@srinivasan7892
@srinivasan7892 4 года назад
How can you relate spring constant (k) with wave?? i,e) T= 2π√(m/K) ???
@NoActuallyGo-KCUF-Yourself
@NoActuallyGo-KCUF-Yourself 4 года назад
So . . . why didn't the engineers of the 2001 Millennium Bridge learn the lesson from the 1940 Tacoma Narrows Bridge?
@magda_mf
@magda_mf 4 года назад
Why is there angular velocity in simple harmonic motion if there are no angles but just a straight line on which the object moves (at least in the given example)? Or did I understand something incorrectly?
@johndemirci3984
@johndemirci3984 6 лет назад
wish ic ould enjo my classes as much as i enjoy watching these videos
@shadynemat9741
@shadynemat9741 5 лет назад
perfect video, good job
@alishamajeed8131
@alishamajeed8131 5 лет назад
great lesson thank you so much
@SuperPSG10
@SuperPSG10 8 лет назад
if the ecuation for the position of the marble is a cos the marble will allways be on the top turning point at t=0. but what if the marble is anywhere else at t=0? is this a stupid question? thx
@alfaguru7497
@alfaguru7497 4 года назад
Hello mam I am from India&first time i watched your video which was very good to understand this lession. THANKS A LOT OF
@charliefielding2297
@charliefielding2297 7 лет назад
Scientist: Half the time they're revolutionizing the world's view of itself, the other half it's playing with a slink.
@pandorasmind4735
@pandorasmind4735 7 лет назад
if u try hard enough to figure out something new... u will never figure anything. BUT if u are strong sighted and can notice something new from different "accidents" in ur experment u will 100% figure out something new. Most scientist set many hundreds of perfect experiments but they get wat they need with the faulty ones (mostly).
@user-hs7qg5tt8t
@user-hs7qg5tt8t 7 лет назад
from 4;00 that eg is mind-BLOWING
@samiulhaq3570
@samiulhaq3570 4 года назад
Mam what type of software you are using for the animation of Physics concepts
@kirtankoro
@kirtankoro 6 лет назад
Hi, QUESTION: What is the difference between Simple Harmonic Motion, (Complex) Harmonic Motion, Periodic Motion, Aperiodic Motion? Is Complex Harmonic Motion and Periodic Motion the same thing? I just try to search on it and find nowhere a clear answer on that. My assumption: Simple harmonic motion x(t) can be described as x(t)=Asin(ωt+φ). And a periodic motion (i assume that it's the same as harmonic motion) can be described as a sum of simple harmonic motions, where ω_k/ω_l for k,l∈Z+ is a rational number. And The motion is aperiodic, if this ratio two omegas is irrational. Am i right? :///
@noblehazards9713
@noblehazards9713 6 лет назад
I don't think I'll be able to become an engineer. Physics 1 by itself is so much hell.
@StudywithmeinPakistan
@StudywithmeinPakistan 8 месяцев назад
Great video
@at.8887
@at.8887 8 лет назад
Already had my exam, this could have helped me :((
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