1. Periodic Oscillations, Harmonic Oscillators

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  • Опубликовано: 17 апр 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

Комментарии • 126

  • @chrissharkey6056
    @chrissharkey6056 3 года назад +15

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

  • @berketozlu
    @berketozlu 3 года назад +7

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

  • @vib_di
    @vib_di 4 года назад +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.

  • @amardeepjhala6922
    @amardeepjhala6922 3 года назад +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.

  • @vivekkumarpandey9182
    @vivekkumarpandey9182 6 лет назад +61

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

  • @icatomitsah7149
    @icatomitsah7149 4 года назад +3

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

  • @7177YT
    @7177YT 5 лет назад +2

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

  • @Meow_yj
    @Meow_yj 3 года назад +1

    The exponential function is so cool ! Very good explanation.

  • @unclefreddy2009
    @unclefreddy2009 6 лет назад +114

    MIT is just the best. Love these courses.

    • @aishwaryas7044
      @aishwaryas7044 5 лет назад +3

      Totally agree with that!

    • @Happyman-od7zp
      @Happyman-od7zp 4 года назад +2

      Me too!

    • @samiru6521
      @samiru6521 3 года назад

      @@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 года назад +1

      Not all. But this one is pretty good

  • @commodorekitty
    @commodorekitty 4 года назад +2

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

  • @akhilanr1233
    @akhilanr1233 3 года назад +1

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

  • @TheRothmetal
    @TheRothmetal 5 лет назад +68

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

    • @berketozlu
      @berketozlu 3 года назад +4

      Dinlediğim en kaliteli fizik derslerinden bu arada ya

    • @boblingerbottom
      @boblingerbottom 9 месяцев назад +1

      Ok kid

  • @BoZhaoengineering
    @BoZhaoengineering 5 лет назад +2

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

  • @tmo314
    @tmo314 6 месяцев назад +1

    This Professor has an amazing teaching style and attitude 😁

  • @mohammedkarim8627
    @mohammedkarim8627 5 лет назад +4

    thank you for the course , and the subtitles

  • @PhoenixMaster123
    @PhoenixMaster123 4 года назад +28

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

  • @muhammadadel2850
    @muhammadadel2850 4 года назад +3

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

  • @asifiqbal3070
    @asifiqbal3070 6 лет назад +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.

  • @jackdeago3639
    @jackdeago3639 Год назад

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

  • @joaocosta3506
    @joaocosta3506 2 года назад

    great lecturer, really good introduction to waves

  • @spiralofinspiration3653
    @spiralofinspiration3653 2 года назад

    Love this man's energy

  • @mertkurttutan2877
    @mertkurttutan2877 6 лет назад +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.

  • @puneetpst
    @puneetpst 5 лет назад +2

    Brilliant lecture!

  • @maunil108
    @maunil108 4 года назад +1

    So awesome lecture. Very useful.

  • @nilberthsouza
    @nilberthsouza 2 года назад

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

  • @rounaksinha5309
    @rounaksinha5309 3 года назад

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

  • @royroyal1214
    @royroyal1214 3 года назад

    awesome class i loved it

  • @junyangliu4812
    @junyangliu4812 6 лет назад +3

    wonderful!

  • @antoniosales3059
    @antoniosales3059 7 месяцев назад

    thk u MIT and Professor... awsome.

  • @khalidhakimi93
    @khalidhakimi93 Год назад

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

  • @theyasi
    @theyasi 4 года назад +1

    Thank you!

  • @victorgustavocardosoprata657
    @victorgustavocardosoprata657 5 лет назад +1

    That's really good

  • @Tito.Tuta3
    @Tito.Tuta3 6 лет назад +3

    good job

  • @physicspoint3356
    @physicspoint3356 2 года назад

    May God bless you sir

  • @adriadi4986
    @adriadi4986 4 года назад +1

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

  • @BikramPoddar7
    @BikramPoddar7 5 лет назад +1

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

    • @amlanlmao
      @amlanlmao Год назад

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

  • @steveying1305
    @steveying1305 10 месяцев назад

    Very good video

  • @maryamkhakbaz3316
    @maryamkhakbaz3316 6 лет назад +2

    thanks a lot MIT

    • @JimBobe
      @JimBobe 5 лет назад

      @Kiran Sengal i disagree

  • @LydellAaron
    @LydellAaron 2 года назад

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

  • @Rgrazia1
    @Rgrazia1 8 месяцев назад

    What about friction?

  • @iAbdullahHanif
    @iAbdullahHanif 4 года назад +1

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

    • @mitocw
      @mitocw  4 года назад +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!

  • @kevincaijiayi
    @kevincaijiayi 2 года назад

    Very good!

  • @scienceandphilo
    @scienceandphilo Год назад

    What will happen if we understand nature?

  • @hadrianuslau9627
    @hadrianuslau9627 2 года назад

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

    • @amlanlmao
      @amlanlmao Год назад

      they considered an ideal environment without damping forces

  • @newb_embedded040
    @newb_embedded040 5 лет назад +1

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

    • @rung.warittha
      @rung.warittha 5 лет назад +1

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

  • @darkpikachu_.
    @darkpikachu_. 5 лет назад +1

    Why aren't there any 8.02 videos?

    • @mitocw
      @mitocw  5 лет назад

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

  • @thanhdattran7046
    @thanhdattran7046 4 года назад +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 года назад +1

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

    • @thanhdattran7046
      @thanhdattran7046 4 года назад +1

      @@MrUwU-dj7js ok, thank you

  • @obsidiantechz1371
    @obsidiantechz1371 4 года назад +1

    How to make surface frictionless?

    • @MohdSFaiz-kd4uv
      @MohdSFaiz-kd4uv 3 года назад

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

  • @firestix8492
    @firestix8492 4 года назад +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 года назад +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 года назад

      Thanks MIT. Great contribution to society!

  • @casedup
    @casedup 8 месяцев назад

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

    • @mitocw
      @mitocw  8 месяцев назад

      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!

  • @azizahkasim5267
    @azizahkasim5267 6 лет назад +55

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

    • @mentorman6285
      @mentorman6285 6 лет назад

      ha haaaaa - I'm dead Azizah

    • @qubitcircuit5784
      @qubitcircuit5784 5 лет назад +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 лет назад

      Qubit Circuit agreed. Rationalize points from the math.

  • @cansomer6433
    @cansomer6433 4 года назад +1

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

    • @adriadi4986
      @adriadi4986 4 года назад

      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 Год назад

      they mean the same thing

    • @Dineshlr10
      @Dineshlr10 7 месяцев назад

      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

  • @nonhereticalmanofculture5401
    @nonhereticalmanofculture5401 3 года назад

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

    • @amlanlmao
      @amlanlmao Год назад

      sin(omega*0) is zero

  • @johnyeap7133
    @johnyeap7133 Год назад

    underrated

  • @hendriaditjandra6418
    @hendriaditjandra6418 5 лет назад +2

    "to make my life easier" I died XD

  • @davidvalle3068
    @davidvalle3068 6 лет назад +5

    Still using those premium chalks I see

  • @madhukeshwarad1973
    @madhukeshwarad1973 4 года назад +1

    21:36 nice

  • @davidjuliang
    @davidjuliang 5 лет назад +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).

  • @Dineshlr10
    @Dineshlr10 7 месяцев назад

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

  • @alexandergarcia6479
    @alexandergarcia6479 4 года назад +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 года назад +1

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

  • @saudmolaib2764
    @saudmolaib2764 6 лет назад +4

    It's good to watch at 1.5x speed!

  • @user-ut9yb1wp1l
    @user-ut9yb1wp1l 2 года назад

    I love

  • @NujudMoha
    @NujudMoha 6 лет назад +1

    For which level is that course?

    • @sing759
      @sing759 6 лет назад

      undergraduate

  • @williambradley835
    @williambradley835 Год назад

    Second only to Walter Lewin. Great Lecture

  • @eigenfeynman9890
    @eigenfeynman9890 2 года назад

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

  • @forheuristiclifeksh7836
    @forheuristiclifeksh7836 6 месяцев назад

    3:04

  • @dhruvk9123
    @dhruvk9123 2 года назад

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

    • @mitocw
      @mitocw  2 года назад +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!

  • @gustavovera6982
    @gustavovera6982 3 года назад

    woooow

  • @higgs_boson2231
    @higgs_boson2231 3 года назад

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

  • @varunghanghas5588
    @varunghanghas5588 4 года назад +1

    Fair enough😂😂

  • @swayamjha3988
    @swayamjha3988 Год назад

    10:23

  • @eigenliu
    @eigenliu 2 года назад

    Best and funny guys, hahahahahaha

  • @iitianakbfacultymaths8260
    @iitianakbfacultymaths8260 3 года назад +1

    Nice 👍👍
    #IITianAKB_online_MATHS_BRAND

  • @mp3lwgm
    @mp3lwgm 2 года назад +2

    Not a substitute for Walter Lewin

  • @deanthurman4916
    @deanthurman4916 3 года назад

    I have seen Newton in a vision

  • @AimanDhai
    @AimanDhai 2 года назад

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

  • @mychannelofawesome
    @mychannelofawesome 4 года назад

    everything is a harmonic oscillator

  • @pmemoli9299
    @pmemoli9299 3 года назад

    senpai

  • @utkarshkapil
    @utkarshkapil 6 лет назад +1

    481

  • @abzshaker
    @abzshaker 3 года назад

    i am just gonna pretend that i understood everything

  • @PawanSingh-ch5tm
    @PawanSingh-ch5tm 6 лет назад +6

    its little difficult to understand his english.

  • @davidvalle3068
    @davidvalle3068 6 лет назад +1

    Second

  • @deanthurman4916
    @deanthurman4916 3 года назад

    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

  • @dhomini1140
    @dhomini1140 6 лет назад +1

    fifith

  • @maddenturkey2376
    @maddenturkey2376 6 лет назад +1

    First!

  • @robertbidochon4980
    @robertbidochon4980 4 года назад +1

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

    • @mitocw
      @mitocw  4 года назад +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 года назад

      @@mitocw thanks mit 😊

  • @ilsimi3599
    @ilsimi3599 9 месяцев назад +1

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

  • @user-fo6ey4jf6j
    @user-fo6ey4jf6j 6 лет назад +1

    Omg his speaking is really...

  • @vaster1142
    @vaster1142 3 месяца назад +1

    Math is ruining physics

  • @TheBigBangggggg
    @TheBigBangggggg 5 лет назад +3

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

    • @joerando385
      @joerando385 4 года назад +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 года назад +1

      Its because your not good at math

    • @paulchen355
      @paulchen355 2 года назад

      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 года назад

      @@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 года назад

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