1. Periodic Oscillations, Harmonic Oscillators

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  • Опубліковано 17 кві 2018
  • MIT 8.03SC Physics III: Vibrations and Waves, Fall 2016
    View the complete course: ocw.mit.edu/8-03SCF16
    Instructor: Yen-Jie Lee
    In this lecture, Prof. Lee discusses the mathematical description of the periodic oscillation and simple harmonic oscillators. The first 5 minutes are devoted to course information.
    License: Creative Commons BY-NC-SA
    More information at ocw.mit.edu/terms
    More courses at ocw.mit.edu

КОМЕНТАРІ • 126

  • @chrissharkey6056
    @chrissharkey6056 3 роки тому +15

    I love physics teachers that can't contain their love of physics

  • @vivekkumarpandey9182
    @vivekkumarpandey9182 6 років тому +61

    He is really awesome teacher. Style of teaching is mind blowing .....I love to watch these lecture

  • @vib_di
    @vib_di 4 роки тому +35

    I really want to learn Physics, and this Content is Really Very Helpful and easy. Thank you MIT a lot, I hope that one day I'll be there at MIT and can thank all the Professors and Faculty and even students for offering this help to for free.

  • @unclefreddy2009
    @unclefreddy2009 6 років тому +114

    MIT is just the best. Love these courses.

    • @aishwaryas7044
      @aishwaryas7044 5 років тому +3

      Totally agree with that!

    • @Happyman-od7zp
      @Happyman-od7zp 4 роки тому +2

      Me too!

    • @samiru6521
      @samiru6521 3 роки тому

      @@Happyman-od7zp yup. u r right. but i wouldnt understand this class without subtitles , hahaha. i think , our teacher is from china .

    • @peterkovinski8476
      @peterkovinski8476 3 роки тому +1

      Not all. But this one is pretty good

  • @berketozlu
    @berketozlu 3 роки тому +7

    that Taylor expansion really expended my mind! Just Wow! How the non-linear part effects the movement...

  • @amardeepjhala6922
    @amardeepjhala6922 3 роки тому +9

    This is the most beautiful course I have found on oscillations and waves, beautiful mathematics there are so many things that I got to understand for the first time like why we always say find freq. Of small oscillators. Why do we use exponential functions . It was the best, thank you so much for this lecture.

  • @PhoenixMaster123
    @PhoenixMaster123 4 роки тому +28

    this is why i love opencourseware, you get a whole uni degree without going to uni XD

  • @icatomitsah7149
    @icatomitsah7149 4 роки тому +3

    I love the way Prof. Yen-Jie Lee explains the topic. ;)

  • @akhilanr1233
    @akhilanr1233 3 роки тому +1

    i could spend the day watching these. I loved the lecture

  • @mohammedkarim8627
    @mohammedkarim8627 5 років тому +4

    thank you for the course , and the subtitles

  • @Meow_yj
    @Meow_yj 3 роки тому +1

    The exponential function is so cool ! Very good explanation.

  • @BoZhaoengineering
    @BoZhaoengineering 5 років тому +2

    Invaluable resources. As a practicing engineer, this topic is not only must have but very interesting to learn. Superb

  • @commodorekitty
    @commodorekitty 4 роки тому +2

    Watching this during the coronavirus pandemic. Thanks for posting the lecture videos!

  • @7177YT
    @7177YT 5 років тому +2

    He's got those quirky one-liners, I find very endearing lol. The didactic quality is very high too. well done!

  • @adriadi4986
    @adriadi4986 4 роки тому +1

    Here is a group for discussion on this course: facebook.com/groups/1088712164828659/
    please join so that we can learn together!

  • @muhammadadel2850
    @muhammadadel2850 4 роки тому +3

    thanks a lot MIT, very helpful lecture and discussed the uncleared information.

  • @spiralofinspiration3653
    @spiralofinspiration3653 2 роки тому

    Love this man's energy

  • @tmo314
    @tmo314 6 місяців тому +1

    This Professor has an amazing teaching style and attitude 😁

  • @mertkurttutan2877
    @mertkurttutan2877 6 років тому +4

    At 10.50, the subtitle is "Therefore, there will be no more force.". But, it should be "Therefore, there will be normal force." if I am not mistaken. In the following sentence, the same thing happens. I want to thank MIT for these courses.

  • @jackdeago3639
    @jackdeago3639 Рік тому

    Thank you so much. MIT is the top of the world

  • @joaocosta3506
    @joaocosta3506 2 роки тому

    great lecturer, really good introduction to waves

  • @puneetpst
    @puneetpst 5 років тому +2

    Brilliant lecture!

  • @maunil108
    @maunil108 4 роки тому +1

    So awesome lecture. Very useful.

  • @asifiqbal3070
    @asifiqbal3070 6 років тому +2

    Walter Lewin Vs Yen-Jie Lee ? Dont know who is the best !! Awesome !! Wish Other Unis do the same online open course !! . So that we can get to know more awesome professors .Binge Watching The same course several time at a regular interval (lets say every2 week or every 2 month) is sure helpful. But i found the courses more helpful if the same course is watched several times but with diff. instructor. Give it a try if you havent already (Assuming you have time ) : it helped me a lot especially in case of increasing learning efficiency.

  • @junyangliu4812
    @junyangliu4812 6 років тому +3

    wonderful!

  • @royroyal1214
    @royroyal1214 3 роки тому

    awesome class i loved it

  • @maryamkhakbaz3316
    @maryamkhakbaz3316 6 років тому +2

    thanks a lot MIT

    • @JimBobe
      @JimBobe 5 років тому

      @Kiran Sengal i disagree

  • @nilberthsouza
    @nilberthsouza 2 роки тому

    There were a few moments when I had some questions, but overall I was able to understand everything.

  • @theyasi
    @theyasi 4 роки тому +1

    Thank you!

  • @antoniosales3059
    @antoniosales3059 7 місяців тому

    thk u MIT and Professor... awsome.

  • @victorgustavocardosoprata657
    @victorgustavocardosoprata657 5 років тому +1

    That's really good

  • @Tito.Tuta3
    @Tito.Tuta3 6 років тому +3

    good job

  • @physicspoint3356
    @physicspoint3356 2 роки тому

    May God bless you sir

  • @khalidhakimi93
    @khalidhakimi93 Рік тому

    49:48 i have never seen such an amazed look like that haha, great teacher

  • @TheRothmetal
    @TheRothmetal 5 років тому +68

    Some people rob banks, purchase share etc. to get rich, I am richening my brain watching MIT lectures

    • @berketozlu
      @berketozlu 3 роки тому +4

      Dinlediğim en kaliteli fizik derslerinden bu arada ya

    • @boblingerbottom
      @boblingerbottom 9 місяців тому +1

      Ok kid

  • @kevincaijiayi
    @kevincaijiayi 2 роки тому

    Very good!

  • @LydellAaron
    @LydellAaron 2 роки тому

    Oh, man, this is Gold. Eq 40:40 had to sink in.

  • @steveying1305
    @steveying1305 10 місяців тому

    Very good video

  • @BikramPoddar7
    @BikramPoddar7 5 років тому +1

    I don't understand why 2nd spring is used in the demonstration of horizontal motion of the mass?

    • @amlanlmao
      @amlanlmao Рік тому

      essentially it constrains the block to move in a translational path, plus it increases the net force on the block.

  • @rounaksinha5309
    @rounaksinha5309 3 роки тому

    IS THE PHENOMENON OF PLASTIC LIMIT ALSO RELATED TO TAYLOR EXPANSION OF POLYNOMIAL V(X)?

  • @thanhdattran7046
    @thanhdattran7046 4 роки тому +1

    In my opinion at 28:50 the graph is not drawn correctly. Because the maximum velocity is at x = 0 instead of the smallest at x = 0. What is your opinion ?

    • @MrUwU-dj7js
      @MrUwU-dj7js 4 роки тому +1

      You're right about velocity, but that graph is not Velocity vs X, but Potential Energy vs X

    • @thanhdattran7046
      @thanhdattran7046 4 роки тому +1

      @@MrUwU-dj7js ok, thank you

  • @azizahkasim5267
    @azizahkasim5267 6 років тому +55

    I always watch this kind of things and pretending that I can understand it

    • @mentorman6285
      @mentorman6285 6 років тому

      ha haaaaa - I'm dead Azizah

    • @qubitcircuit5784
      @qubitcircuit5784 5 років тому +8

      It's not difficult to understand but it does have pre requisits , and it takes some time to rationalise the points being made

    • @BoZhaoengineering
      @BoZhaoengineering 5 років тому

      Qubit Circuit agreed. Rationalize points from the math.

  • @firestix8492
    @firestix8492 4 роки тому +3

    Anyone knows how frequent these lectures are in the actual course? Like how many times would students receive such a lecture per week

    • @mitocw
      @mitocw  4 роки тому +7

      The class met 2 times per week for 1.5 hours per session; 27 sessions total for lectures. There were also recitations available and they met 2 times per week for 1 hour per session; 28 sessions total. For more info, see MIT OpenCourseWare at: ocw.mit.edu/courses/physics/8-03sc-physics-iii-vibrations-and-waves-fall-2016/instructor-insights/. Best wishes on you studies!

    • @gracepancalstatela4422
      @gracepancalstatela4422 2 роки тому

      Thanks MIT. Great contribution to society!

  • @iAbdullahHanif
    @iAbdullahHanif 4 роки тому +1

    may i have Physics note including topics such as simple harmonic motion any any more i need notes from MIT

    • @mitocw
      @mitocw  4 роки тому +4

      The notes and other materials from this course are available on MIT OpenCourseWare at: ocw.mit.edu/8-03SCF16. To see what MIT OCW has for physics, see the course finder at: ocw.mit.edu/courses/find-by-topic/#cat=science&subcat=physics. Best wishes on your studies!

  • @newb_embedded040
    @newb_embedded040 5 років тому +1

    Do course 6 students at MIT take 8.03 ? Is it required ?

    • @rung.warittha
      @rung.warittha 5 років тому +1

      No, it is not required. For physics, every undergrad is required to take (or pass the exam of) 8.01 and 8.02

  • @Rgrazia1
    @Rgrazia1 8 місяців тому

    What about friction?

  • @darkpikachu_.
    @darkpikachu_. 5 років тому +1

    Why aren't there any 8.02 videos?

    • @mitocw
      @mitocw  5 років тому

      They were removed from our channel. Here is why: news.mit.edu/2014/lewin-courses-removed-1208. We are currently working on a replacement.

  • @obsidiantechz1371
    @obsidiantechz1371 4 роки тому +1

    How to make surface frictionless?

    • @MohdSFaiz-kd4uv
      @MohdSFaiz-kd4uv 3 роки тому

      Blow the surface with laminar flow of air as demonstrated in experiment

  • @hadrianuslau9627
    @hadrianuslau9627 2 роки тому

    10.58, whay friction force did not include in this diagram?

    • @amlanlmao
      @amlanlmao Рік тому

      they considered an ideal environment without damping forces

  • @cansomer6433
    @cansomer6433 4 роки тому +1

    Isn’t omega angular frequency and not velocity please tell if I’m wrong (probably yes I am).

    • @adriadi4986
      @adriadi4986 4 роки тому

      Are you taking this course? If yes then please come to this group facebook.com/groups/1088712164828659/
      so that we can discuss questions together.
      And omega is angular velocity which is also called angular frequency.

    • @amlanlmao
      @amlanlmao Рік тому

      they mean the same thing

    • @Dineshlr10
      @Dineshlr10 7 місяців тому

      Omega is symbol for angular velocity as well but the meaning differs angular velocity is change in angular displacement in two dimensional motion like circular motion but angular frequency is like no of times or oscillations the circular motion or for simplicating pendulum will have both angular velocity and angular frequency because it's is two dimensional motion and the action repeats that is angular frequency

  • @scienceandphilo
    @scienceandphilo Рік тому

    What will happen if we understand nature?

  • @davidjuliang
    @davidjuliang 5 років тому +2

    At 42:30, he said that x(t) = Re[A*cos(omega*t+phi) +i*f(t)], but this is the same as x(t) = A*cos(omega*t+phi) since Re[i*f(t)] is zero if f(t) is real. Therefore, the Re[x] vs Im[x] plot that he shows is wrong. I think he meant x(t) = A*cos(omega*t+phi) +i*f(t).

  • @johnyeap7133
    @johnyeap7133 Рік тому

    underrated

  • @casedup
    @casedup 8 місяців тому

    what happened to physics I and II @MIT???

    • @mitocw
      @mitocw  8 місяців тому

      ocw.mit.edu/courses/8-01sc-classical-mechanics-fall-2016
      ocw.mit.edu/courses/8-02-physics-ii-electricity-and-magnetism-spring-2007
      Best wishes on your studies!

  • @hendriaditjandra6418
    @hendriaditjandra6418 5 років тому +2

    "to make my life easier" I died XD

  • @alexandergarcia6479
    @alexandergarcia6479 4 роки тому +3

    if Re means the real part of the expression at 47:00 why you don't you name it just Acos(...)?

    • @joshuaronisjr
      @joshuaronisjr 4 роки тому +1

      He does! That was the second way in which he wrote the equation!

  • @davidvalle3068
    @davidvalle3068 6 років тому +5

    Still using those premium chalks I see

  • @user-ut9yb1wp1l
    @user-ut9yb1wp1l 2 роки тому

    I love

  • @nonhereticalmanofculture5401
    @nonhereticalmanofculture5401 3 роки тому

    Why a is X initial and b is 0? Is b equal to X single dot?

  • @madhukeshwarad1973
    @madhukeshwarad1973 4 роки тому +1

    21:36 nice

  • @Dineshlr10
    @Dineshlr10 7 місяців тому

    Every body try to be one state so to resist the change it is oscillating I think so

  • @saudmolaib2764
    @saudmolaib2764 6 років тому +4

    It's good to watch at 1.5x speed!

  • @forheuristiclifeksh7836
    @forheuristiclifeksh7836 5 місяців тому

    3:04

  • @williambradley835
    @williambradley835 Рік тому

    Second only to Walter Lewin. Great Lecture

  • @dhruvk9123
    @dhruvk9123 2 роки тому

    is this covers the entire course from start to end ?
    what should I watch walter lewin course or this ?
    please answer

    • @mitocw
      @mitocw  2 роки тому +1

      This course is complete, see ocw.mit.edu/8-03SCF16 for the course materials. Honestly, either series would work. While we no longer have the Water Lewin course materials available on our site, you should be able to find it elsewhere. Best wishes on your studies!

  • @eigenfeynman9890
    @eigenfeynman9890 2 роки тому

    The only flaw in this perfect lecture, 52:49, iykyk

  • @NujudMoha
    @NujudMoha 6 років тому +1

    For which level is that course?

    • @sing759
      @sing759 6 років тому

      undergraduate

  • @higgs_boson2231
    @higgs_boson2231 3 роки тому

    I love this guy, but Lewin is still number one.

  • @gustavovera6982
    @gustavovera6982 3 роки тому

    woooow

  • @swayamjha3988
    @swayamjha3988 Рік тому

    10:23

  • @varunghanghas5588
    @varunghanghas5588 4 роки тому +1

    Fair enough😂😂

  • @eigenliu
    @eigenliu 2 роки тому

    Best and funny guys, hahahahahaha

  • @mp3lwgm
    @mp3lwgm 2 роки тому +2

    Not a substitute for Walter Lewin

  • @deanthurman4916
    @deanthurman4916 3 роки тому

    I have seen Newton in a vision

  • @utkarshkapil
    @utkarshkapil 6 років тому +1

    481

  • @iitianakbfacultymaths8260
    @iitianakbfacultymaths8260 3 роки тому +1

    Nice 👍👍
    #IITianAKB_online_MATHS_BRAND

  • @mychannelofawesome
    @mychannelofawesome 4 роки тому

    everything is a harmonic oscillator

  • @AimanDhai
    @AimanDhai 2 роки тому

    if youre here coz of you dont understand a thing in class welcome to the club

  • @pmemoli9299
    @pmemoli9299 3 роки тому

    senpai

  • @abzshaker
    @abzshaker 3 роки тому

    i am just gonna pretend that i understood everything

  • @davidvalle3068
    @davidvalle3068 6 років тому +1

    Second

  • @PawanSingh-ch5tm
    @PawanSingh-ch5tm 6 років тому +6

    its little difficult to understand his english.

  • @maddenturkey2376
    @maddenturkey2376 6 років тому +1

    First!

  • @dhomini1140
    @dhomini1140 6 років тому +1

    fifith

  • @deanthurman4916
    @deanthurman4916 3 роки тому

    In the most respectfully manor I can create in a few sentences I would ask you nicely to eliminate the word ok from your vocabulary ok, it’s driving me nuts ok I could be I’m the only one this affect ok I may just be to critical after all this is a free course that I enjoy tremendously ok, but for some reason I find myself wanting to only listen to how many times you say ok, it’s quite a few. Sorry to use the ok so much in my request but I thought it might help get my point across , ok okie dokie

  • @robertbidochon4980
    @robertbidochon4980 4 роки тому +1

    Quite hard to follow due to the Chinese accent. Not as bad as Hong Liu, but still difficult to understand.

    • @mitocw
      @mitocw  4 роки тому +2

      +Robert Bidochon
      All newer OCW videos have full captions that you can turn on if you're having trouble understanding the professor. Use the "English - CC" which should be the default, as the auto-generated version often have glaring mistakes. Good luck with your studies!

    • @srinikethvelivela9877
      @srinikethvelivela9877 3 роки тому

      @@mitocw thanks mit 😊

  • @user-fo6ey4jf6j
    @user-fo6ey4jf6j 6 років тому +1

    Omg his speaking is really...

  • @ilsimi3599
    @ilsimi3599 9 місяців тому +1

    Not bad, but Lewin's lectures were better, sorry

  • @vaster1142
    @vaster1142 3 місяці тому +1

    Math is ruining physics

  • @TheBigBangggggg
    @TheBigBangggggg 5 років тому +3

    I prefer a lecturer with a better knowledge of the language. No US-citizen who can teach this stuff?

    • @joerando385
      @joerando385 4 роки тому +15

      Or maybe what MIT is trying to show you is that it's possible to have good education that goes across language and cultural barriers. If you had troubling following the lecture it's probably not because the language.

    • @srinikethvelivela9877
      @srinikethvelivela9877 3 роки тому +1

      Its because your not good at math

    • @paulchen355
      @paulchen355 2 роки тому

      I am guessing most ppl who have superier knowledge plus language skills are all gone to competitive industry.. Foreign professors are becoming the norm even in most top tier universities.

    • @TheBigBangggggg
      @TheBigBangggggg 2 роки тому

      @@joerando385 You are number 1 with a personal remark; people seem to like that. Dear o dear. But teaching is about transferring knowledge in the best way you can. This isn't the best way. Simple as that!

    • @TheBigBangggggg
      @TheBigBangggggg 2 роки тому

      @@srinikethvelivela9877 You are number 2 with a personal remark. Dear o dear. Well, you give a "fine" impression of yourself :-(