The equation of a wave | Physics

The equation of a wave | Physics | Khan Academy

Рет қаралды 832,154

8 жыл бұрын

In this video David shows how to determine the equation of a wave, how that equation works, and what the equation represents. Created by David SantoPietro.
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Physics on Khan Academy: Physics is the study of the basic principles that govern the physical world around us. We'll start by looking at motion itself. Then, we'll learn about forces, momentum, energy, and other concepts in lots of different physical situations. To get the most out of physics, you'll need a solid understanding of algebra and a basic understanding of trigonometry.
About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.
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Пікірлер: 414

@filippetrovic9823 7 жыл бұрын

I think this is one of the best explanations I have ever seen, btw much better than listening to my physics teacher :D

@themechanic132 2 жыл бұрын

same dude!

@InvincibleAirman 6 жыл бұрын

It seems like my graduation from university pretty much depends on KZfaq. Not sure if that's a good or a bad thing.

@geico105 5 жыл бұрын

It’s good that you have something you can rely on at all, but in case KZfaq ever fails you, you might want to have other forms of resources as back up.

@swnsar 5 жыл бұрын

you gonna have the like more than you expected, because most of the people doing like you. unfortunately me too

@stephensynchronicity5631 5 жыл бұрын

Imagine what we did before KZfaq

@user-sq1kz3ow3k 5 жыл бұрын

InvincibleAirman the same lol

@yogitagoswami9286 4 жыл бұрын

They teach you this in university!!! Here in India they teach us this in 11th grade.

@diby1555 6 жыл бұрын

I feel like ive wasted 2 years with tutors....this is so much better....

@fromexoplanet21 2 жыл бұрын

I've never seen someone explain something so easily and in a way that makes total complete logical sense....our teachers just write some equations without explaining what each of the symbols and numbers represent nor what their relationships are to one another...it is a waste of my time and my life...but you just managed to explain math in such an elegant way that I've never seen before, thank you💖 I basically have survived all these years just by watching KZfaq videos...you guys are the best teachers I know, hats off to you💖💐

@raghdaelraaie9335 Жыл бұрын

and I was hoping my university is the only place that sucks and treats us this way 🥲

@douchizheng3086 4 жыл бұрын

I want to thank KZfaq and Khan Academy as well as many other knowledge provider like Khan Academy, many education videos are a lot better than what my teacher taught me, KZfaq is a great platform to study, I hope more people can benefit from this platform, knowledge can be spread in a faster, more accurate, easier to understand way

@TheEliteCoder 4 жыл бұрын

Spent almost six figures in a prestigious university so that I can learn for free from KZfaq. If this isn't a dystopia than I'm not sure what this is.

@rubaiyatmehedi9337 4 жыл бұрын

@Bruce Xu specially during this pandemic

@gnosis33-real 4 жыл бұрын

You you could say it's a Utopia because you could have just learned from you KZfaq saved time and money and took a loan out for six figures, started a business and be set for life on the unlimited amount of free knowledge readily available at your finger tips...just saying. Depends on your frame of reference

@rubaiyatmehedi9337 4 жыл бұрын

@Lisa Simpson which grade are you at?

@rubaiyatmehedi9337 4 жыл бұрын

@Lisa Simpson no need to apologise for your English you're pretty good. And you definitely should check out the trigonometry playlist from Khan academy. These are pretty basic things and you probably should've had a decent idea about these basics of trig since you're in your first year of physics. It's true that it's never too late to learn something but it might affect your institutional grades mate. And good luck😉

@rubaiyatmehedi9337 4 жыл бұрын

@Lisa Simpson And I might as well suggest you to buy a book called 'University Physics' I bet you'll love it. Would clear out any misconceptions about general physics give you a deeper understanding of the concepts of physics.

@Meow_yj 3 жыл бұрын

The explanation is so clear and intuitive! I wish this channel gets more appreciation, it deserves it.

@maniyerjokhio2013 5 жыл бұрын

I'll be ever grateful to you for such comprehensive explanation . Really, i could understand this chaotic wave equation only by going through channel ...

@simranjoharle4220 6 жыл бұрын

This video makes that complicated equation look so elegant....thank you so much!

@NaveenKumar-vj9sc 3 жыл бұрын

I enjoyed every moment of the explanation. This kind of explanation, I was always expecting, when I ask someone to explain me about wave equation but never a satisfied answer i got so far and now i am very much impressed with the content of the video and the way it is explained. I will keep from now on, this as the base explanation, if would want to explain anyone on wave equation. I just want to give infinite like to this video.Thank you soooooooo much.

@ritzrox4679 Жыл бұрын

My mind is literally blown, I was searching for a derivation or at least an explanation of the wave equation and you explained it in such a clear way linking every step to the next. I can’t thank you and khan academy enough for putting such amazingly simple explanations for everyone to understand

@ameennaseem8936 4 жыл бұрын

one of the best explanations i have ever seen

@googleearth.755 3 жыл бұрын

kzfaq.info/get/bejne/e9GTlNyDtZutd40.html get a real view of sinusoidal waves

@jayantnigam5912 6 жыл бұрын

That's the reason why Khan academy's is so awesome the way they explain the things and makes you understand each and very "PARTICLE"...of the subject....i must say..., To core concepts build and dug deep inside your brain which is never gonna fade away...i just salute to you sir....this one of the best explanation i had ever understood from any one....hats off to you....👍👍🙇🙇👏👏

@wesleymarquardt4708 2 жыл бұрын

THIS WAS SO GREAT. I was so confused when I was given an explanation in class, but this made it so clear. I had some homework concerning this equation and I was totally freaking out, but this was such a life saver. I breezed through the questions after this so thank you Khan Academy!

@abenaboateng650 4 жыл бұрын

Wow so clear. Never fully understood where this equation came from but it makes so much sense from this video. Thanks!!

@nastarankianersi104 3 жыл бұрын

I watched this video to try to understand electromagnetic waves. I'm not sure if I had really understood the concept of waves in high school but I absolutely understood now! Thank you so much!

@krishnaprasath 5 жыл бұрын

wow! one of the best explanations i've ever seen...I've seen khan academy videos before..thanks a lot for the great work u have been doing...:)

@HAWI-SO Жыл бұрын

It is a smart idea to use such videos as a professor to facilitate the teaching learning process in class . The video surely can be used as additional learning material to make the concept more clear . It has a very good visual representation.

@Slime5276 6 жыл бұрын

Thank you so much! Your a life saver for University Physics students.

@nataliabacic 4 жыл бұрын

Thank you for explaining everything. Even the intro, where you define y(x,t), was very helpful.

@shmkrar1153 2 жыл бұрын

I have been trying to understand this equation for a long time - I mean years - and I finally get it. Thank you! 😊 Thank you very much!

@mxame 5 жыл бұрын

Thank you for this cool explanation !

@roopeshonline 2 жыл бұрын

Definitely it is going to be my one of the most favorite explanation seen for ever, great job, thanks

@mohammedsanaullah1065 6 жыл бұрын

Just beautiful... Amazing... Wonderful... Just Khan academy 👏👏👏👏👏

@rocketracoon411 2 жыл бұрын

Just felt your explanation!!! Thank you so much!!👏👏

@masudraihan6905 4 жыл бұрын

What a beautiful explanation!!khan academy is really doing a great job....it helped me a lot for visualising and realistic feeling about how a wave propagates...A big thanks to Salman khan for having such greatful tuitors...

@decaybeats 5 жыл бұрын

Quick and easy to understand explanation, thank you!

@RealEverythingComputers 9 ай бұрын

This video really helped me understand wave functions! Thanks!

@superparth1995 5 жыл бұрын

Best video for this topic. Thanks!

@Mulkek 3 жыл бұрын

Thanks, and it's so easy & simple!

@mohamedmahfouz1813 6 жыл бұрын

thank you soooo much i'm impressed

@doublewilliams9897 Жыл бұрын

You're an awesome teacher. Thank you for sharing your knowledge.

@semimathi6018 5 жыл бұрын

man wtf ....... so intuitiv and simple... best explanation i've ever seen. thanksss :)

@nickdaniel8636 7 жыл бұрын

Incredible! Even though I didn't get all of it...but the way you explain the formula was absolute stunning! Salute to you bro

@lakshmidevihs2787 11 ай бұрын

this was out of this world thanks a lot

@diribamosisa3760 2 жыл бұрын

this is awesome.im very thankful

@obediencernorupiri4342 4 жыл бұрын

this is really helpful.the explanation is on point

@fardinhossain5410 2 жыл бұрын

holy moly! this tutor is amazing!

@its_mohammedsaeed928 4 жыл бұрын

Best explanation ever 👌 👏 👍 I tried so much to understand this weird thing and i think i got it now Thank U so much

@donlimonesioyt9644 4 ай бұрын

I’m studying 12th grade physics in Spain and this video really helped me. Thanks

@sharurethi7809 2 ай бұрын

Sir this is what I was searching for days.... Thank you so much ❤

@chaitanyagajbhiye6100 5 жыл бұрын

Amazing explanation. Thanks a lot.

@justanotherguy469 2 жыл бұрын

This is just great! A total education via KZfaq. Very well explained, and graphically displayed. If you could make the cursor just a little more pronounced, so my slow mind can follow it on screen, I would be very thankful. Thank you!

@MrExtremehustler 6 жыл бұрын

This guy David is really good. The only person I actually listen to from khan academy.

@hosseinazizi1426 5 жыл бұрын

Very beautifully explained, thank you

@oofsper 9 ай бұрын

No words to express how thankful I am for such a beautiful explanation free of cost

@hammadiazaiez7370 4 жыл бұрын

sorry my teacher.. but u have to learn this! man u are just awesome.. thanks for helping thousands around the world

@crickettadka2019 6 жыл бұрын

Amezing explanation.. thank you

@aydinberk69 5 жыл бұрын

Thanks for everything.

@zuhairalsaffar7001 4 жыл бұрын

Sir l like your way of teaching thanks for this video with respect you have helped me so much

@francislow1767 6 жыл бұрын

Great job explaining! Helped a lot :D

@MrMrannoying 4 жыл бұрын

I love this explanation! My textbook and Teacher used this other way of getting the argument for the cos/sine. After establishing the wavelength and its relation to the distance it then used cos[2pi/wavelength(x-vt)], to establish how it shifted over time due to velocity. After that, the velocity was changed into terms of wavelength and period. yada yada. I enjoy your video a lot more though!

@fisicraft Жыл бұрын

It helped a lot thanks!

@pooravakumar3547 5 жыл бұрын

Amazingly explained.

@ryanmacewen511 3 жыл бұрын

Perfect video! thank you!!

@line8748 Жыл бұрын

Great explanation! Thank you very much.

@itrstt66 Жыл бұрын

By the way could do a video on leveling sines amplitude as the frequency changes? i was searching for that when i found this video, and i really like your style of putting things into a more clear perspective.

@MichaelSchwark-yn3jb Жыл бұрын

Amazing! Thank you! I got it!

@mridulasharma1480 4 жыл бұрын

I am so so so grateful for this amazing amazing amazing awesome explanation . It's the best channel 💕💕💕💕

@arunavoanirban 2 жыл бұрын

I couldn't be more grateful. You're awesome ❤️

@pluripotentmedico 5 жыл бұрын

Really helpful Thank you so much sir

@forward876 Жыл бұрын

oh wow! how can the whole world not be geniuses with this quality of explanation so widely available. Too bad, I'm sucking all this up till its dry. Oh BTW Thanks!

@jonassmidt7534 Жыл бұрын

Insanely good explained!

@rahulsurwase6627 2 жыл бұрын

Khan academy should get a Nobel for peace.....you have brought about a revolution in education field.... Thanks...from this generation Sal

@shakirbashir132 4 жыл бұрын

8 hours of lecture notes and 3 text books, still understood almost nothing. 5 minutes of this clip and im an expert! Thaaaannkkksss!!!!

@csywf 2 жыл бұрын

It is Soooooo simple and beautiful I really wanna thank youuuu... This is the best explanation!

@MS-sm6oj 8 ай бұрын

This was well-explained. Good job

@sanahaskuranage8071 Жыл бұрын

awesome video thanks!

@rebeccaly 3 жыл бұрын

Thank you!!!!! This makes so much more sense now.

@NiharikaAChirayil 2 ай бұрын

Thank you so much for the video! I was really confused about this topic.

@daweihuang4606 7 жыл бұрын

This video provides a very great explanation, probably the best physics video i watched this year

@harshguptaxg2774 Жыл бұрын

Thankyou very much Khan Academy for these kind of intuitive explanation of these concepts

@williamstephenjones3863 Жыл бұрын

This is phenomenal

@GaneshReddy9 2 жыл бұрын

This is the best video of wave equation I have ever seen thanks a lot

@yoobro6767 3 ай бұрын

understood nothing out of my textbook intuitively but now i clearly understood this

@amatore6 2 жыл бұрын

I'm a person without math who has for many years struggled to understand QM and especially the Wave Function. I wish I would have started with this video. From this video I now understand much better what a "function" is and does. I knew that sine and cosine had to be involved in the equation, but now I understand how. I would imagine the QM Wave Function is similar but with more than just x and t involved, such as p, and I know that it is "complex." My goal is to understand how the WF predicts the future state of the quantum particle. This video is a huge help, and I have watched many.

@krustian88 6 жыл бұрын

Thank you, helped me a lot :)!

@nagrajkv5152 7 ай бұрын

Thank you very much. excellent presentation...

@ahmadhaziq3358 2 жыл бұрын

this is the best explanation I've seen on this topic

@vanessawertheim 3 жыл бұрын

Thank you for this video! 😊

@FreefireKing-pi2yx 5 ай бұрын

Thank you so much sir for this video it made me clear about wave equation

@otvirani 10 ай бұрын

So good!

@calvinjackson8110 3 жыл бұрын

Excellent presentation! I have came back to it many times. Enjoy the way you explain. What is the tool you are using to present the remote live lecture?

@alimukhtar4759 Жыл бұрын

Wonderful explanation David 👍

@ahmedzarka3407 4 жыл бұрын

The Best of The Best ... 👏👏👏👏👏

@akshithgupta7326 7 жыл бұрын

just an awesome explanation

@randomvideos3628 Жыл бұрын

Diamond of an explanation...

@gemmalouise6814 4 жыл бұрын

Thanks sm really helped !

@qasimabbasi. 3 жыл бұрын

Great Explanation Sir....

@avieus 5 жыл бұрын

awesome... thank you

@Britishbaptist Жыл бұрын

Fantastic explanation thank you for doing this

@B__ArnavSingh 4 ай бұрын

very nice really impressed

@Kombivar 4 жыл бұрын

Awesome stuff! Much more fun than college basics - more freedom.

@dearagrani9624 4 жыл бұрын

Yah!!

@huntermuhib 7 жыл бұрын

Amazingly Awesome.

@eftakharsunjid9399 4 жыл бұрын

Alhamdulillah, I have felt this matter in this video.

@taiseiraziz6105 3 жыл бұрын

anaHr ?

@sshirish9167 6 жыл бұрын

This is the best explanation everrrrrrr!!!!! You help students understand the concepts well..... My textbook only gives the formula but after watching your video, i actually understood the formula :-D :-D :-) :-)