Harmonics of a Standing Wave - IB Physics

I explain the definition of harmonics in standing waves and show their shapes and patterns for strings that have 2 fixed ends, 1 fixed & 1 open end, and 2 open ends. I show how to find wavelength, velocity, frequency, and the fundamental frequency.

0:00 The velocity in a medium is constant
1:16 What is a harmonic?
3:06 2 fixed ends: reflection
5:02 2 fixed ends: wavelength of harmonics
6:49 2 fixed ends: frequency of harmonics
9:40 Example problem: 2 fixed ends
11:30 Fixed at 1 end: reflection
13:45 Fixed at 1 end: wavelength, frequency, & harmonic #
17:20 2 open ends: reflection
17:59 2 open ends: wavelength, frequency, & harmonic #

[saulecayuelazilinskaite]

I have discovered your channel a few days ago and realized there are such good videos. Thank you so much for the explanations and hope more people find your channel!

[SKY-lfsy]

hi! this video was very helpful and your explanation is really clear! thank you for continuing to upload :)

[perfectneglect]

Oh my God you sounded so much like Chris Doner at 10:44 when you said 'Multiply that out'

Great video though, really helped me consolidate the ideas

[giordanodigloria]

Does every harmonic need to end at an antinode? If not how comes the first harmonic at 18:30 doesn't stop at the antinode?

[pavithranthayalan]

You're explaining very well, i would like to be a student in your class

[DJTejasMusic]

this is amazing. Please please please do HL videos as well

[HernandezLopezPedro]

thank you very much, your video was so helpful!

[naveensingh]

what is the meaning of fundamental frequency

[aditij]

at 16:25 shouldn't the wavelength be equal to 2/3L?