The equation of a wave | Physics | Khan Academy
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- เผยแพร่เมื่อ 28 ก.ค. 2016
- 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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I think this is one of the best explanations I have ever seen, btw much better than listening to my physics teacher :D
same dude!
It seems like my graduation from university pretty much depends on TH-cam. Not sure if that's a good or a bad thing.
It’s good that you have something you can rely on at all, but in case TH-cam ever fails you, you might want to have other forms of resources as back up.
you gonna have the like more than you expected, because most of the people doing like you. unfortunately me too
Imagine what we did before TH-cam
InvincibleAirman the same lol
They teach you this in university!!!
Here in India they teach us this in 11th grade.
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 TH-cam videos...you guys are the best teachers I know, hats off to you💖💐
and I was hoping my university is the only place that sucks and treats us this way 🥲
I feel like ive wasted 2 years with tutors....this is so much better....
I want to thank TH-cam 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, TH-cam 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
Spent almost six figures in a prestigious university so that I can learn for free from TH-cam. If this isn't a dystopia than I'm not sure what this is.
@Bruce Xu specially during this pandemic
You you could say it's a Utopia because you could have just learned from you TH-cam 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
@Lisa Simpson which grade are you at?
@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😉
@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.
one of the best explanations i have ever seen
th-cam.com/video/EkcayRP5IGY/w-d-xo.html
get a real view of sinusoidal waves
The explanation is so clear and intuitive! I wish this channel gets more appreciation, it deserves it.
I'll be ever grateful to you for such comprehensive explanation . Really, i could understand this chaotic wave equation only by going through channel ...
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
This video makes that complicated equation look so elegant....thank you so much!
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.
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....👍👍🙇🙇👏👏
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.
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!
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!
8 hours of lecture notes and 3 text books, still understood almost nothing.
5 minutes of this clip and im an expert!
Thaaaannkkksss!!!!
Wow so clear. Never fully understood where this equation came from but it makes so much sense from this video. Thanks!!
Khan academy should get a Nobel for peace.....you have brought about a revolution in education field....
Thanks...from this generation Sal
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!
Thank you for explaining everything. Even the intro, where you define y(x,t), was very helpful.
Thank you so much! Your a life saver for University Physics students.
Thank you for this cool explanation !
Sir this is what I was searching for days.... Thank you so much ❤
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...:)
Just felt your explanation!!!
Thank you so much!!👏👏
this was out of this world thanks a lot
Definitely it is going to be my one of the most favorite explanation seen for ever, great job, thanks
This is just great! A total education via TH-cam. 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!
I’m studying 12th grade physics in Spain and this video really helped me. Thanks
This video really helped me understand wave functions! Thanks!
Just beautiful... Amazing... Wonderful... Just Khan academy 👏👏👏👏👏
No words to express how thankful I am for such a beautiful explanation free of cost
This guy David is really good. The only person I actually listen to from khan academy.
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.
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.
sorry my teacher.. but u have to learn this!
man u are just awesome.. thanks for helping thousands around the world
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...
You're an awesome teacher. Thank you for sharing your knowledge.
Thankyou very much Khan Academy for these kind of intuitive explanation of these concepts
Thanks, and it's so easy & simple!
Quick and easy to understand explanation, thank you!
man wtf ....... so intuitiv and simple... best explanation i've ever seen. thanksss :)
Best explanation ever 👌 👏 👍
I tried so much to understand this weird thing and i think i got it now
Thank U so much
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!
people should fund khan academy more. This organization is literally life saving for my classes.
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?
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!
Sir l like your way of teaching thanks for this video with respect you have helped me so much
Thank you so much for the video! I was really confused about this topic.
Best video for this topic. Thanks!
this is really helpful.the explanation is on point
Thanks for everything.
Incredible! Even though I didn't get all of it...but the way you explain the formula was absolute stunning! Salute to you bro
thank you soooo much i'm impressed
understood nothing out of my textbook intuitively but now i clearly understood this
Great explanation! Thank you very much.
holy moly! this tutor is amazing!
I am so so so grateful for this amazing amazing amazing awesome explanation . It's the best channel 💕💕💕💕
Very beautifully explained, thank you
This was well-explained. Good job
this is awesome.im very thankful
Thank you!!!!! This makes so much more sense now.
It is Soooooo simple and beautiful I really wanna thank youuuu... This is the best explanation!
Amazing explanation. Thanks a lot.
Really helpful
Thank you so much sir
Insanely good explained!
Awesome stuff! Much more fun than college basics - more freedom.
Yah!!
I couldn't be more grateful. You're awesome ❤️
This video provides a very great explanation, probably the best physics video i watched this year
Amezing explanation.. thank you
Thank you so much sir for this video it made me clear about wave equation
Amazing! Thank you! I got it!
Thank you very much. excellent presentation...
Perfect video! thank you!!
Amazingly explained.
Alhamdulillah, I have felt this matter in this video.
anaHr ?
Great job explaining! Helped a lot :D
It helped a lot thanks!
This is the best video of wave equation I have ever seen thanks a lot
Wonderful explanation David
👍
awesome video thanks!
very nice
really impressed
this is the best explanation I've seen on this topic
This is phenomenal
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 :-) :-)
Fantastic explanation thank you for doing this
Who is the lecturer? Sir you have done a really good job. I would like to sincerely thank you for your great work.
amazing explaination
Thank you, helped me a lot :)!
Thank you for this video! 😊
So good!
Even a 10 th class student can understand this very properly explained thank you sir😊
Ohhh, my Gooooooosh!!!! Finally I understood what this equation means! I'm learning physics at uni, I'm in the 3rd semester and I just now understood that what I have already 'learned'. You are awesome!
So you are telling me that after studying all this stuff in 11th grade currently, we have to do everything all over again at uni??!!! Nooooooo..
@@aksharaverma880 Yes, but you are learning all the stuff from an another point of view and you will go much deeper into the meaning of the equations. You will enjoy it, if u study hard. This is my experience. If you are lazy and don't give a shit, than physics at uni is going to be a nightmare, you will suffer and die. :DD
Great Explanation Sir....
Profound explanation
awesome... thank you
Good way of explanation
Spent 4 years in college and now I finally understand high school math thanks so much😅
Diamond of an explanation...