Saturday, December 12, 2020

Sounds only kids can hear and Adults can't - Science experiment for Kids

Humans can detect sounds in a frequency range from about 20 Hz to 20 kHz. Kids can hear even above that to some level till 22 KHz as well. With age, the ability to hear high frequencies decreases. Check the table below to see the range of frequencies and what age group can hear them.

Check the video to see this in action. It will be more fun if the video is seen by kids and elders together.

People have used this concept to put high-frequency buzzers that wards off kids. Kids have used this as a ringtone which elders cannot hear.

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