Standing waves on strings | Physics | Khan Academy

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Khan Academy Physics

Khan Academy Physics

Күн бұрын

Пікірлер: 282
@Fahimsy3d
@Fahimsy3d 4 жыл бұрын
You make lives of students very easy all around the world and we cannot ever explain in words how much you mean to all of us.
@Randiiii
@Randiiii 2 жыл бұрын
Oh my gosh, i dont know why it was so hard for me to understand this concept when my teacher taught it, probably because i was half asleep, but you've made it so easy to understand through this video. Thank you so much, i loved the way you explained it!
@mrjollyguy25
@mrjollyguy25 6 жыл бұрын
Honestly why can't physics professors teach like this?
@hussam9044
@hussam9044 6 жыл бұрын
They do...
@FaizaanDatoo
@FaizaanDatoo 6 жыл бұрын
They're teaching on their feet
@geico105
@geico105 6 жыл бұрын
Because they take the things they’ve mastered for granted.
@PAA-ne3pc
@PAA-ne3pc 5 жыл бұрын
They do but it's the students who don't concentrate because its not a video and it's long
@hikariwuff
@hikariwuff 5 жыл бұрын
YES
@MCCloneCraft
@MCCloneCraft 6 жыл бұрын
“This guy is the big daddy”
@ProEpicGuya76c007
@ProEpicGuya76c007 4 жыл бұрын
scrub 8 think you should reconsider about what u said ... 😂😂😂😂
@sanhitasaxena1542
@sanhitasaxena1542 3 жыл бұрын
This is the comment I was looking for 😂
@yanpingyuan3903
@yanpingyuan3903 3 жыл бұрын
I can not help laughing
@dbf72829
@dbf72829 Жыл бұрын
Amen
@noooodles6631
@noooodles6631 9 ай бұрын
Dont forget "alpha guy" 😂
@wanzhuzhao9439
@wanzhuzhao9439 7 жыл бұрын
I was thoroughly confused after lecture today and I am so glad to have found this video, it was not that complicated
@lizzyberg1082
@lizzyberg1082 7 жыл бұрын
Jinnie Tinianow lol just imagine if your teacher saw your comment :,)
@wanzhuzhao9439
@wanzhuzhao9439 7 жыл бұрын
lol, i think it's more because of communication styles. My professor was actually pretty good once you get use to the style, but we covered this in the beginning of the semesters and I didn't understand her at all.
@lizzyberg1082
@lizzyberg1082 7 жыл бұрын
Jinnie Tinianow yeah,some teachers like this one they know exactly how to teach every student ,thats the skill!
@hussam9044
@hussam9044 6 жыл бұрын
Wait you take this stuff in college? I was just watching this video so I can do my retake exams, I am still in private school... How deep does Cambridge teach it's students? I am just an overseas student studying in a British system Under Cambridge. My class is called 12 AL (Advanced Level). That's what Cambridge calls us, AS and A Level students...
@aminulhussain2277
@aminulhussain2277 2 жыл бұрын
@@hussam9044 University level physics is much harder than this.
@xiaoyu3644
@xiaoyu3644 5 жыл бұрын
Finally a guy who knows how to explain things! BEST TEACHER AWARD. Sick of people who are like this is this and that is that but dont explain how it works. So you explained well thank you.
@yoihenbath
@yoihenbath 10 ай бұрын
This is so good that I wanna cry I didn't understand this now I do ❤❤❤❤❤
@sooodarncrazy4817
@sooodarncrazy4817 6 жыл бұрын
I can honestly tell you that if I become the next Stephen Hawking, I will credit you as I receive my Nobel prize.
@ashishkumarjha3851
@ashishkumarjha3851 6 жыл бұрын
Sooodarncrazy But, Stephen Hawking doesn't won Nobel!
@ashishkumarjha3851
@ashishkumarjha3851 5 жыл бұрын
@@annoyingfelix5873 It's not my native language. I learn it only for specific purpose.
@ashishkumarjha3851
@ashishkumarjha3851 5 жыл бұрын
@@annoyingfelix5873 So! I hope you will understand it!
@ashishkumarjha3851
@ashishkumarjha3851 5 жыл бұрын
@Kat Thanks Kat
@xNatsuuu
@xNatsuuu 5 жыл бұрын
I will think about nobel Prize later and use this to clear my entrances first 😅
@kavishsunassee5114
@kavishsunassee5114 5 жыл бұрын
Thank you Khan Academy... You make life way more simple... Love you...😍😍😍
@jessicaxhumari4483
@jessicaxhumari4483 3 жыл бұрын
David, I exclusively watch your physics videos. No one can match your teaching ability. Thank you and you're welcome.
@beatsme3146
@beatsme3146 3 жыл бұрын
You explained something my modules can't. It literally asks me to hum at the frequency of an electric fan and write my observations. How am I supposed to write my observations when It didn't explain what concept of physics should I base my observations on? I don't want my answer to sound ridiculous and irrelevant to standing waves and so I searched this. Glad it helped a lot.
@GamerMarshall-567
@GamerMarshall-567 9 ай бұрын
this is great education man im in grade 7 but i know this will help thank you!!
@atauygur8104
@atauygur8104 3 жыл бұрын
I can not thank enough to Khan Academy as a whole, when I see a video from Khan Academy exists about the subject I am trying to learn, I become relieved. A black background with colorfoul lines on it never became this good.
@munibali2242
@munibali2242 6 жыл бұрын
tbh David Santo Pietro is the best in all of khan academy in terms of his ability to explain
@kyubeenkim9360
@kyubeenkim9360 2 жыл бұрын
OMG, lifesaver - thank you so much for the video
@ashishgurung1417
@ashishgurung1417 6 жыл бұрын
2 minutes into the video and i know this is going to be great . Thank u for such simplified and beautiful content
@ghaissaleem7136
@ghaissaleem7136 3 жыл бұрын
The "day before the exam" studying moment
@spectral282mcoc
@spectral282mcoc 2 жыл бұрын
Dancing Waves concept is easy. Thanks to you sir!
@박재성-k7h
@박재성-k7h 5 жыл бұрын
This is the best lecture that I've ever heared.
@Tollia123
@Tollia123 2 жыл бұрын
Finally someone who actually makes it possible to understand this.
@08athakwaninandish16
@08athakwaninandish16 2 жыл бұрын
भौतिकी के इस विषय का काफि अच्छा विवरण देने के लिए शुक्रिया! ⭐️ Thanks mann, for the explicit explanation of this concept of Physics ! ⭐️
@swatidixit6459
@swatidixit6459 3 жыл бұрын
Thanks a lot Sir. I can try solving more questions! As my basic is clear now! Ur 13 min. Saved my 1 hour. Once again thanks for this amazing session 🙏
@qaisar.sulaiman
@qaisar.sulaiman Жыл бұрын
Extremely common khan academy W
@dynamelo8351
@dynamelo8351 5 жыл бұрын
We need more of this style of teaching for everything study, at least online.
@mt479
@mt479 Ай бұрын
So smooth, so understanding, so beautifully demonstrated.
@210sn
@210sn 6 жыл бұрын
one of the simplest presentation on this topic.thanks khan academy..keep posting this type of videos.
@iamisratjahan1975
@iamisratjahan1975 Жыл бұрын
Best video hands down on this topic on KZbin!
@fraserr8269
@fraserr8269 8 жыл бұрын
Fantastic video! This guy is awesome!
@eroneous3917
@eroneous3917 6 жыл бұрын
Much simpler than I thought. You made this very easy to digest. Thanks! Now everybody in the comments section do the wave👋! Lol😁
@hamzaaitoowxcv4502
@hamzaaitoowxcv4502 8 жыл бұрын
you're a great theacher thanks a lot
@elsac4574
@elsac4574 6 жыл бұрын
Thank you so much, it does helped me so much, I've been stuck in this for couple weeks ago
@drawingsforlife2249
@drawingsforlife2249 Жыл бұрын
I CANT NOT EXPLAIN HOW IM GRATEFUL FOR THIS VIDEO
@farn451
@farn451 6 жыл бұрын
I suffer from Dyscalculia and I'm a sound engineer so I kind of need to understand this stuff but I've been wrestling with a way to get my head into it. This was clear and even though your peppered it with math's I followed it and it made perfect sense. Thank you!
@jamesursilvano4618
@jamesursilvano4618 6 жыл бұрын
Good day to the uploader ! I really want to GIVE A LOT OF THANKS to you ! I am a newly Physics teacher ( although I am a Math Major Graduate) from Philippines. Your videos really help me in my teaching and understand a lot more about physics. Thanks a lot sir, and GOD BLESS !
@agmaioshorts.4257
@agmaioshorts.4257 4 жыл бұрын
good luck on yr journey.
@yizhan232
@yizhan232 Жыл бұрын
When I was listening my teachers lecture it was too tough to understand, but you taught it with fun. woah, this concept is actually very easy to understand . thank you
@just4simplegg428
@just4simplegg428 4 жыл бұрын
Thank you, that was inimitable!
@kdramaslove6028
@kdramaslove6028 2 жыл бұрын
I hate topic of waves so much. But u make it look like so much fun to learn......thanks sir. 💕
@davitk.
@davitk. 6 жыл бұрын
So much better than my real physics teacher. I struggled to learn that In class than here which was so much easier.
@vedantk2259
@vedantk2259 2 жыл бұрын
This is the best possible explanation.
@alienxae8993
@alienxae8993 6 жыл бұрын
So helpful! Failed a quiz and didnt know what i did wrong... this made it so much easier!
@gigachadcha7412
@gigachadcha7412 2 жыл бұрын
Really appreciate people like him who makes our lives way easier and it helps a little woth depression
@ArnavBarbaad
@ArnavBarbaad 7 жыл бұрын
Upvoted because "dancing wave" xD
@jimliu7086
@jimliu7086 2 жыл бұрын
I like many others here were also quite confused before I came here. Thanks so much!
@assarlannerborn9342
@assarlannerborn9342 Жыл бұрын
Bro has descended from heaven with this one
@unimalik8988
@unimalik8988 7 жыл бұрын
when the wave reflect from the boundry (i.e from rare to the denser medium)it reflects at angle of 180 so it should be a destructive interference ...so how the antinodes r formed ??
@Kyle_da_athlete
@Kyle_da_athlete 6 жыл бұрын
Uni Malik exactly this is the same question I'm asking
@pawankhanal8007
@pawankhanal8007 6 жыл бұрын
I can't wrap my head around it. Same problem
@rajaramanbaruah9798
@rajaramanbaruah9798 6 жыл бұрын
Interference occurs only when the waves simultaneously pass through that point in the string, and since a wave before and after reflecting is never simultaneous, so therefore its not a destructive interference.
@MuhammadTahir-bl9uv
@MuhammadTahir-bl9uv 4 жыл бұрын
Destructive interference does not occur. A wave is made up of crest and trough. Let's assume that crest is leading the trough, and therefore it will be reflected first by the anti node. When the crest is reflected. It is inverted. And the inverted form of crest is trough. And already, another trough was coming behind the crest. So two troughs reinforce each other.
@jamess6106
@jamess6106 4 жыл бұрын
@@MuhammadTahir-bl9uv I was looking for an explanation to this and at first your explanation looked confusing but after reading it again, you have managed to get me to completely wrap my head around it, thank you very much!!!!
@trombonetimmy1064
@trombonetimmy1064 Жыл бұрын
You explained this really well, props for helping me get this concept!
@allenllewellynkra
@allenllewellynkra 8 жыл бұрын
Best explanation I've heard
@alexfontaine6233
@alexfontaine6233 Жыл бұрын
from 9:00 minutes on why didn't you just show the equation for wavelength lambda=(2L)/n instead of making it more complicated
@rajeshjoshi3812
@rajeshjoshi3812 6 жыл бұрын
You r the bestest teacher I ever had😍😍😍😍😍😍😍😘😘😘
@arindamchakraborty9098
@arindamchakraborty9098 6 жыл бұрын
Yes that was a complete discussions I was hoping for. Thanks sir
@Amethystb.06
@Amethystb.06 Жыл бұрын
This was a perfect explanation, thank you!
@Sup_keke
@Sup_keke 2 жыл бұрын
I love you. It makes so much sense now
@vanshsingh608
@vanshsingh608 2 жыл бұрын
nice explanation for the danci- i mean standing waves
@lillian5353
@lillian5353 5 жыл бұрын
YOU. ARE. BRILLIANT.
@zynex9250
@zynex9250 2 жыл бұрын
Thank you man
@RealEverythingComputers
@RealEverythingComputers Жыл бұрын
Awesome video! Thanks for the great explanation!
@MelikaSalari
@MelikaSalari 2 ай бұрын
Thanks, I love chemistry, after watching these videos
@xhuliomyftari8039
@xhuliomyftari8039 6 жыл бұрын
What an awesome video !! Way better understanding of the standing waves. Great job man
@priscillalk5324
@priscillalk5324 4 жыл бұрын
thanks alot finally got it😁😁🙌
@radintelect157
@radintelect157 Жыл бұрын
Thanks, for this extremely good explanation.
@DynamicMusicArtist
@DynamicMusicArtist 6 жыл бұрын
Thank you very much, this has really helped with my studies!
@soundroomstudiosproductions
@soundroomstudiosproductions 3 жыл бұрын
One of the best explanation... Thanks 👍
@anac1053
@anac1053 2 жыл бұрын
never realized how much i needed a physics teacher who refered to the fundamental wavelength as "big daddy" until today
@kabouch
@kabouch 3 жыл бұрын
4:44 L in this example should be representing λ/2 since it is a half cycle with a crest (maximum)only, shouldn't it?
@livolofsson9634
@livolofsson9634 5 жыл бұрын
This guy is so goddam good. I'm honestly asking myself if he draws those perfect curves, while being entertaining and actually teaching me at the same time, or if he has rigged it somehow, lol.
@thefirespectrum
@thefirespectrum 2 жыл бұрын
Simply wonderful explanation.
@TM-mi3wi
@TM-mi3wi 5 жыл бұрын
KZbinrs make physics easy, and then your teacher/lecturer make it feel like hell
@anujupadhyay7210
@anujupadhyay7210 3 жыл бұрын
it was really very helpful
@faris3604
@faris3604 3 жыл бұрын
thank you david
@bosbos8810
@bosbos8810 4 жыл бұрын
Very good tutorial
@sammywilkins3438
@sammywilkins3438 7 жыл бұрын
Super awesome! Helped me grasp the constructive and destructive concepts a lot more! I also thought it might be nice to note, that the velocity of each harmonic is the same, because λ_n=2L/n ,f_n=nV/2L,and V=λf, so V_n=2L/n* nV/2L=λ_n f_n. I know you didn't talk about velocity so it probably wasn't relevant, I just thought that it was super interesting and cool!
@anthonyrojas9989
@anthonyrojas9989 3 жыл бұрын
Great explanation. Thank you
@bhawnarana4217
@bhawnarana4217 7 жыл бұрын
khan academy is best and so are you sir.
@markkennedy9767
@markkennedy9767 Жыл бұрын
Can you explain where the extra length of string comes from when the standing wave is at its highest amplitude vs when it is a straight line.
@Vhaen
@Vhaen 5 жыл бұрын
He explained it so well
@hiru1803
@hiru1803 4 жыл бұрын
Excellent teaching !!!
@faithabike664
@faithabike664 2 жыл бұрын
Very correct thanks for helping me understand this Really appreciate 🙏
@asseilalhlafi128
@asseilalhlafi128 2 жыл бұрын
amazing , thanks a lot
@anuraggupta5988
@anuraggupta5988 4 жыл бұрын
Helped me a lot
@dharshandm7488
@dharshandm7488 3 жыл бұрын
Hey..... 2:50 ... In piano we don't essentially give number of pulses so what causes all the overtones and fundamentals
@adhamkhaledmohamed3989
@adhamkhaledmohamed3989 3 жыл бұрын
Man, you are a life saver!! Thank you
@hannidew4296
@hannidew4296 7 жыл бұрын
thank you! Finally I actually understand something! :)
@athiest100
@athiest100 Жыл бұрын
Thank you ❤
@hanqingchai7305
@hanqingchai7305 7 жыл бұрын
Thank you soooooo much! Great lecture and thanks to Khan Academy too!! 😭😭 I've been very confused of this and your video clear out all my frustration 💕 Really just THANKSS!!!!
@tadeassimunek3516
@tadeassimunek3516 4 жыл бұрын
Thank you, well explained!
@ابومصطفي-س6غ
@ابومصطفي-س6غ 7 жыл бұрын
thanks for your teacher and students
@tobennaiwuji6067
@tobennaiwuji6067 2 жыл бұрын
This video saved my grades
@iliTheFallen
@iliTheFallen 6 жыл бұрын
Great explanation. Bravo! and Thanks!
@abdulwadood3497
@abdulwadood3497 6 жыл бұрын
Very nice you haven't Wasted your time n money in institutes
@jasonyang5336
@jasonyang5336 4 жыл бұрын
bruh u r a legend
@meeeeeeemz
@meeeeeeemz 6 жыл бұрын
saved my life, thank uuu!
@yeswaystation27
@yeswaystation27 7 жыл бұрын
This chapter messed me up in school, but you explained it so clearly. Thank you so much!
@anindyadutta3458
@anindyadutta3458 Жыл бұрын
I am still confused at the wavelength measurements
@mazardeen10
@mazardeen10 9 ай бұрын
What is your concern?
@lyricsuniverse815
@lyricsuniverse815 5 жыл бұрын
Thanks, it was helpful.
@judys17
@judys17 2 жыл бұрын
I love you dude!
@mightyporus582
@mightyporus582 6 жыл бұрын
Awesome! Thanks!
@Rob-od3lm
@Rob-od3lm 3 жыл бұрын
thank you thank you thank you
@callitcaffeine2256
@callitcaffeine2256 5 жыл бұрын
Thanks a lot sir !
@silahbasir6657
@silahbasir6657 Жыл бұрын
I can't believe I am enjoying physics....in high school it was a headache
@GreenburgerE
@GreenburgerE 6 жыл бұрын
perfect explanation. keep on you rock.
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