Sound Properties (Amplitude, Period, Frequency, Wavelength) | Physics | Khan Academy

Let's take a closer look at the ways we can describe sound. Created by David SantoPietro.

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[maccddyasydsydysyds]

THIS IS EXACTLY WHAT I WAS LOOKING FOR WHEN I GOOGLED IT! THANK GOD! I needed an animated visual representation of a sound wave so bad with parts labeled. I was scratching my head reading the book trying to understand what the wavelength was. Thank you!!!

[asdmiestahuknown]

i have watched videos and online lectures for like 3h now...
and seriously this is the BEST explanation about sound properties there is.
thank you so much sir, i love you. i would walk your dog sir, wash your cloths, bet up the bullies, make sure u get promotion, give you the lottery, and much more. YOU Sir ARE THE BEST of Youtube, ofc After Dr.Najeeb :)

[palak]

this is THE BEST video on sound properties...god bless you sir....thanks from the core of my heart

[snfsociety]

This made everything clear up for me, thank you. have to do a PowePoint on sound

[dimadeit]

When I’m searching for a visual and very precise way of explaining anything, I search the question and Khan Academy. There is nothing that they do not cover that is of my interest! 👏🏾♥️

[archanathakur]

This video is on point.Thank you so much for posting this. 

[raj_jm]

this is the best explanation. helped me a lot, thanx a lot.

[hasanraheem]

Amazing explanation, you changed everything into real life

[isamess]

thank you!
the wave length vs. period comparison was just what I needed

[davidguitar]

Great video! Very simple and clear explanation.

[BLACKISMYHUSBAND]

Excellant explanation It makes me understand very well

[nurgisnoor]

Khan academy has did it again👍really great

[ritvicaramesh]

Thank you!
Best explanation on Earth!

[janishavarma]

Thank you so much for this video, I learned so much.

[dilara]

everything is way more clear now. thank you for the video

[xjamx]

I am such a sucker for bad puns. "Sorry, I know listening to this note hertz."

[m.c.]

in one of your video you said that waves does not travel faster if you scream louder . well that is confusing because you said that density cause inertia and the wave has to over come this inertia which slows it down. if I pack more energy in a sound wave over the same area wouldn't that more easily overcome the inertia thus traveling much faster .

[ertreri]

When in a instrument, you travel from an A note to a B note, fundamentally you are only slightly increasing the frequency of this note? Or does A4 440Hz and B4 493Hz differ more than in just the frequency? Do they differ as well in the wave shape? Or for a given instrument the wave shape of all notes if fundamentally the same, but the notes played the instrument differ exclusively on their frequency?

[hindbouhmadi]

I have watched other videos before stumbling upon this one and they were all lacking but this one is the best and the visuals really help the understanding process ! Thank you

[radgekuntonius]

What kind of speaker is used? And what's the lowest and highest frequency it could pick up?