Sound: Wavelength, Frequency and Amplitude.

NOTE: Subsonic and Supersonic are old terms and more commonly refer to speed rather than frequency. In modern use, “infrasonic” refers to frequencies below 20Hz, while “ultrasonic” refers to frequencies above human hearing.

KS3 Science video on sound. Topics covered: transverse and longitudinal waves, wavelength, frequency, pitch and amplitude

[aandm]

Honestly, did so much research and could retain anything. First 20 seconds you had me hooked and understood instantly.

[Potato-ncjp]

Notes:
Each wave is one pulse
The number of pulses is the same as the frequency, the amount of hertz, if there are 4 pulses then the sound is 4 hertz
The graph is measured in a certain time frame, for example in a one second graph if there were 4 pulses then it would be 4 pulses per second and a frequency of 4 hertz
If we have a longer wavelength then that means we have fewer pulses which means lower frequency and a lower pitch
If we have shorter wave lentgth it means we have more pulses which means higher frequency and higher pitch
Height of the wave tells us the amplitude
Higher amplitude means higher sound and vice versa

[armanbhat]

20 seconds into the video and i'm aldready hooked

[dougpeters]

An absolutely brilliant and easy to understand tutorial.
You are a gifted teacher !

[asmitayadavk]

I must say that this video explains the concept of sound best among all the videos i have seen on
Thank you so much for your help Sir ☺️

[ineffable_may]

This was so easy to understand and helped me with my school work, especially as I’m stuck at home :D

[jayci]

I'm sorry... my ADHD is at it again but I started laughing at the, "I don't get it" at the beginning LOL

[MarkPumphrey]

Good video but I would make the following changes. Waves with a higher frequency than what we can hear are ultrasonic. Waves with a lower frequency than what we can hear are infrasonic. Subsonic and supersonic refer to objects travelling faster and slower than sound.

[firesidefairytale]

Brilliant! I ploughed through many videos to finally find this. The others left out far too many steps! Many thanks. Will now pass this on.

[leilakassar]

Thanks to this video I can do my homework

[ABHINAND]

this was informative as well as entertaining and not boring....

[Unknown_dude_evr]

Okay nice video, but in 0:55, what was the song he was playing?

[ssavage]

I have a science test tomorrow, and I forgot my study book at school. This was a great It helps me understand. Frequency pitch, and amplitude so much better.

[tajuthemaker]

Hand claps for this explanation it was beautifully...wait for it.... SOUND!!!! seriously man thank you

[sarthakraj]

Keep up the quality of your content it's really good I understood everything

[AleeEnt]

You are the future...
Keep up the good work.

[akinrolabulolade]

Great explanation. Really dissect the frequency and amplitude of a sound wave.

[joshuaarnold]

Dude I'm so thankful for this video. This made my day . So easy to understand. Keep it up :)

[ruijadhav]

Sir u explained it very well...tysm..it became easy for me to understand the concept..😊😊😊

[AtypicalPaul]

I think it would be interesting to see a comparison video of sound and light waves.