Equation for simple harmonic oscillators | Physics | Khan Academy

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  • Опубликовано: 28 июл 2016
  • In this video David explains the equation that represents the motion of a simple harmonic oscillator and solves an example problem. Created by David SantoPietro.
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Комментарии • 121

  • @Ureyeuh
    @Ureyeuh 6 лет назад +88

    This guy is incredibly good at explaining physics concepts. This is the best SHM video I've found on RUclips.

  • @rouxadrien612
    @rouxadrien612 7 лет назад +118

    awesome explanation, you just saved a french first year mecanical engineering student

    • @asad.h
      @asad.h 6 лет назад +9

      wow we do this at a level

    • @Warrior1754
      @Warrior1754 5 лет назад +3

      A-H Brawls! Malaysians do this at preU as well!

    • @kaamilmirza6963
      @kaamilmirza6963 5 лет назад +13

      We have this stuff for high school ,lol ,We are as good as dead

    • @milesaasher6979
      @milesaasher6979 5 лет назад +5

      high-five ya'll A levelz @_@

    • @riyadhhussain5396
      @riyadhhussain5396 5 лет назад +17

      In Bangladesh, we do this stuff from kindergarten

  • @HarrieZ
    @HarrieZ 3 года назад +9

    Holy cow, I'm learning this in Vietnam as a Highschool 12th grader, it's confusing and giving me a hard time, this actually just answered all of my questions. And give me answer for question I didn't know I need! Thank you

  • @avp2742
    @avp2742 6 лет назад +35

    Wonderful explanation. Hit the nail on exactly what I was struggling with. Thanks for your help, David!

  • @maikkempen6688
    @maikkempen6688 6 лет назад +12

    The lessons on Khan Academy are very useful and clear! Keep up the good work!

  • @JP-xm3qf
    @JP-xm3qf 5 лет назад +2

    Thank you very much David!. I got confused on the "re-setting part of the equation" but thanks to you it was much clearer!.

  • @richphero106
    @richphero106 3 года назад +1

    I do not know how I didn't see this as just a high school senior-level math problem... literally learned this in trig... thank you!

  • @bluefoxf5963
    @bluefoxf5963 3 года назад +3

    Great explanation! Thank you! This function is beautiful when you completly realize how it works!

  • @Tobstarrilez
    @Tobstarrilez 7 лет назад +3

    This is amazing thanks!

  • @humairatabassum6236
    @humairatabassum6236 Год назад +1

    As a jee aspirant and a 12th grader i can't express how amazing this video is. Made me learn the formula just by simple logic 👍🏻📚

  • @bigbull604
    @bigbull604 3 года назад +1

    Perfect explanation than any video on youtube till now

  • @sarahsahibqran2198
    @sarahsahibqran2198 6 лет назад

    Thank you so much this video has helped me finally solve a very tough mechanics problem.

  • @beenamachhami3762
    @beenamachhami3762 5 лет назад +2

    couldn't be explained better. thanks.

  • @christianmendez4529
    @christianmendez4529 2 года назад

    this vid on harmonics is the one I understand the most. thanks a lot!

  • @fatimafnch4395
    @fatimafnch4395 7 лет назад +3

    You're awesome ✌🏻

  • @MrNurseinTExas
    @MrNurseinTExas 6 лет назад +1

    this is what I needed for a starfield simulation elliptical-orbit I am working on for my game... thanks!

  • @bereketmolla7592
    @bereketmolla7592 4 года назад +3

    I know this is from three years ago, but you can express the graph that you gave as an example in terms of sine, assuming you shifted the whole graph to the right 1 unit (sec) so it would be like : 3sin ( (2*PI/4) (t-1) )

  • @vivekgupta3692
    @vivekgupta3692 4 года назад

    It helps me a lot .....Thanks david sir

  • @physicsjunior4192
    @physicsjunior4192 6 лет назад +1

    Thank u a lot.....

  • @mariaangelicalopezrodrigue4746
    @mariaangelicalopezrodrigue4746 3 года назад

    Eres increible! gracias!

  • @gokulram9188
    @gokulram9188 4 года назад

    Thanks a lot ! i understood in the first shot ! much easier to understand than my text ! thx again !

  • @juliakim8226
    @juliakim8226 6 лет назад

    Thank you!

  • @goopinspace473
    @goopinspace473 Год назад

    Beautifully explained. You just saved a student's life

  • @dimlighty
    @dimlighty 2 года назад

    Thank you for making it easy to understand.

  • @Chlrintruc
    @Chlrintruc 3 года назад

    Absolute mad lad. You’re my hero m8

  • @ventjemazzel8822
    @ventjemazzel8822 4 года назад

    Many thanks for your clear explanation; now I finally understand it and don't have to memorize it.

  • @nicholasbraud1986
    @nicholasbraud1986 6 лет назад +5

    7:33, literally answered the exact question I needed, how to get angular velocity out of velocity.

  • @akhilka1926
    @akhilka1926 4 года назад

    Just superb!

  • @AdityaSingh-zy5nw
    @AdityaSingh-zy5nw 5 лет назад

    THANKS A LOT !!

  • @muhammadosama8308
    @muhammadosama8308 4 года назад

    Really helpful video thanks alot

  • @nandikakaul6979
    @nandikakaul6979 4 года назад

    Beautiful!

  • @kabouch
    @kabouch 3 года назад +1

    9:04 In my humble opinion, using 2pi/2 could be simply illustrated in terms of horizontal dilation i.e 2pi*λ=T so that λ=T/2pi, and hence 1/λ=2pi/T.

  • @galtrost5186
    @galtrost5186 Год назад

    You are a G my dude. Saved me so much time and energy.

  • @shahir1395
    @shahir1395 3 года назад

    Absolute legend!!!

  • @katayoonkalaeirad2238
    @katayoonkalaeirad2238 6 месяцев назад

    Duuuuuuuuuuuuuuude!!!! This was AMAZING! just a.m.a.z.i.n.g.
    THANK YOU

  • @georgematousek9193
    @georgematousek9193 4 года назад

    Cool explanation. ..definitely wasn't bored

  • @fahmidaafreen9855
    @fahmidaafreen9855 Год назад

    This was super helpful!!!!! TYSM

  • @yiwang6898
    @yiwang6898 2 года назад +1

    awesome explanation!

  • @mentalpeace2550
    @mentalpeace2550 2 года назад

    This guy is a Godsend!

  • @sahilsea1161
    @sahilsea1161 5 лет назад

    Just awesome

  • @derrick_rj.5035
    @derrick_rj.5035 2 года назад

    Thanks a lot ...

  • @zizo-ve8ib
    @zizo-ve8ib 4 года назад

    If not for my large number of saved liked videos I would've given a like to almost every single video you make 😂 , thanks allot really you saved me

  • @harshguptaxg2774
    @harshguptaxg2774 2 года назад +1

    Best explanation !

  • @alldabbing8930
    @alldabbing8930 10 месяцев назад

    Excellent teaching sir!

  • @robinsinhaxii-a3848
    @robinsinhaxii-a3848 5 лет назад +1

    wow. Wow. WOW

  • @TheElectromagno
    @TheElectromagno 15 дней назад

    very good lesson

  • @boblee8813
    @boblee8813 3 года назад +1

    Explanation couldn't be better than this.

  • @call.me.dexter
    @call.me.dexter 5 лет назад

    beaautifulll................

  • @ritikrajput5546
    @ritikrajput5546 2 года назад

    Best video to learn shm on yt

  • @shemi404
    @shemi404 6 лет назад +3

    thank u saved me from my exam. Im a 11th grade student but STILL dont know whats the correlation of sin, cos, tan and why we use em. My physic teacher is just telling the formula, what should we use to replace the variables and viola test time. i liked science a lot but i tihnk i just lose my hope at this point.

    • @dimlighty
      @dimlighty 2 года назад

      I hope you're doing good now.

  • @orcathekillerwhale4655
    @orcathekillerwhale4655 3 года назад

    AWSOME

  • @dinglerdangler
    @dinglerdangler 3 года назад

    thanks

  • @Poopoo-ut5ku
    @Poopoo-ut5ku 4 года назад +2

    What app do you use for the visuals?

  • @juvinalung1499
    @juvinalung1499 4 года назад +6

    Hello sir! I would like to know about the usage of phase constant(phi) in SHM equation.

    • @parthokarmaker5043
      @parthokarmaker5043 3 года назад +1

      phase constant indicates that the graph looks like sin or cosin

  • @HeidiBelc
    @HeidiBelc 2 месяца назад

    khan academy i love you

  • @myriama5590
    @myriama5590 3 года назад +1

    How can we find the pseudo period, any answer please ?!

  • @ms.3124
    @ms.3124 4 года назад

    nobody:
    Khan Academy@ 9:23: PERIOD !

  • @gauharkengshilik
    @gauharkengshilik Год назад

    This eplanation is a real period!

  • @serene9532
    @serene9532 6 лет назад +3

    4:28 *please help!*
    How can we put *t= 2pi* when t is *time* and 2pi radians is the *displacement/angle travelled* ? How are we equating these different physical quantities together?

  • @lennonlim8168
    @lennonlim8168 6 лет назад +5

    May I know why is the position graph starts at the maximum. Isn't it suppose to start at the point zero and form a sin graph?

    • @sarimkidwai2218
      @sarimkidwai2218 6 лет назад +3

      Basically to bring the mass on the spring into motion, you have to pull it back a bit first right? So it's already displaced by how much you pull it back. That initial displacement is why at time=0, the graph has an amplitude maximum. And since the graph intersects the Y axis, (in this case the horizontal position X) at a Maximum at time=0, it'd have to be a cosine function.

    • @chrisbotos
      @chrisbotos 4 года назад

      @@sarimkidwai2218 You can also have another mass hit this mass when it's still and give it a Velocity. It really just depends on when you start the time ,but in physics we generally start the time at the moment the mass has x=0 and V=+Vmax

  • @aqsatanveer361
    @aqsatanveer361 7 лет назад +9

    thanks u saved a student from pakistan

  • @manthansadekar5076
    @manthansadekar5076 4 года назад +1

    Man I am a 9th grade. Your explanation has made me understand the concepts of 11th and 12th grade with ease

    • @dimlighty
      @dimlighty 2 года назад

      woah! You were studying this in 9th class! Are you studying college stuff now?

  • @JosueA_455
    @JosueA_455 2 года назад

    If frequency increases in SHM, so does the acceleration. But does it make sense that high frequencies impose such a high acceleration? How do you account for this biased acceleration given by high frequencies. For instance, for SHM, a=( 2*pi*f)^2. How do you account for the fact that lower frequencies have more detrimental effects that high frequencies?

  • @quranmedia691
    @quranmedia691 Год назад

    HELLO IAM LEARNING FROM SOMALIA THANKS

  • @serene9532
    @serene9532 6 лет назад +1

    7:23 why are we putting delta theta as 2pi? Coz as soon as the oscillator comes back to its original position at time T, the displacement is 0 and not 2pi? I'd be extremely thankful to anyone who can explain🙏

    • @blissfulfragrance2511
      @blissfulfragrance2511 6 лет назад

      icecream +f

    • @blissfulfragrance2511
      @blissfulfragrance2511 6 лет назад

      Govinda S well even if we consider the angular aspect, it object will be at the exact same spot again, (after going around the circle once), so wouldn't the *angular* as well as *linear* Displacement be 0, although the angular Distance travelled may be 2π radians or 360°?🤔🤔🤔

    • @serene9532
      @serene9532 6 лет назад

      Govinda S hey thank you for replying!
      Ah yes I have this same question as the person above👆👆👆

  • @abdoomar-jx9pm
    @abdoomar-jx9pm 3 года назад +2

    when you understand it so well that u need the guy to just continue talking.

  • @marcim5172
    @marcim5172 4 года назад

    I had to come here to get an answer for pendular motion. Teachers are afraid to teach us calculus, they know not what capable of we are (junior high btw)

  • @nanoh3962
    @nanoh3962 3 года назад

    How to know if use sin or cos?!

  • @internetuser9315
    @internetuser9315 7 лет назад +2

    #HELP#... how to know if a given equation represents a SHM or just a periodic motion,,pls help!!!!!!

  • @seamusfing
    @seamusfing 5 лет назад

    i love you

  • @Karan-uu3id
    @Karan-uu3id 6 лет назад

    👍

  • @camerashysd7165
    @camerashysd7165 Год назад

    you forgot to add the phase angle

  • @blissfulfragrance2511
    @blissfulfragrance2511 6 лет назад

    Wait is it sik-lik or saaik-lik processes??

  • @tydang8335
    @tydang8335 6 лет назад

    I wanna have vietsub

  • @vuleogamer2013
    @vuleogamer2013 Год назад

    tthks

  • @comic4relief
    @comic4relief 7 лет назад +1

    Why do you keep emphasizing that you don't put in anything for the unknown?

  • @changyuan5404
    @changyuan5404 6 лет назад

    I'm not really cl ver

  • @trollexgrith7732
    @trollexgrith7732 4 года назад

    Struggle to locate the cursor

  • @cardinalityofaset4992
    @cardinalityofaset4992 3 года назад +1

    But 2pi is equal to six wtf?

  • @user-zt8zz9zu5m
    @user-zt8zz9zu5m 6 лет назад +6

    Please translate in arabic ppplllleeeaaaassseeee :(

    • @siyayas9134
      @siyayas9134 4 года назад

      يا عزيزتي .. يجب تعلم الانجليزية لانها مهمة جدا في لحظات كهذه .... مر عام .. رمضانك مبارك

    • @user-zt8zz9zu5m
      @user-zt8zz9zu5m 4 года назад +1

      Siya Yas مر عامين، عند كتابتي لتعليق كنت في اول سنه لي بالجامعه ولا افقه شيئاً باللغه الانجليزية.. الان بقي لي سنه واتخرج من تخصص كله باللغة الانجليزيه والله ياسرع الايام 🥺 ورمضانك مبارك

    • @siyayas9134
      @siyayas9134 4 года назад

      @@user-zt8zz9zu5m ماشاء الله تبارك الله ...💙

  • @eintroll8792
    @eintroll8792 2 года назад

    Unfortunately you are looking for y and not the x axis.

  • @benjasilva8734
    @benjasilva8734 3 года назад

    this was so baad dude i love khan academy but you just made it seem like we use this equation because it works on 0 and 1 and it behaves simillarly to what this hand drawing of movement looks like

  • @xAsSaSsInZx1
    @xAsSaSsInZx1 4 года назад +2

    This shit is 5th grade in Serbia wtf

    • @kanishk9490
      @kanishk9490 2 года назад

      thats a shame. I did this when i was 12 months old.