Sound Waves Flashcards

All 5 cards in this deck

What is the range of normal human hearing?

20 Hz to 20 kHz (20 000 Hz).

What happens when sound waves travel through a solid?

They cause the solid to vibrate, passing the wave on through the material.

How do sound waves reaching the ear produce the sensation of sound?

They make the ear drum and other parts of the ear vibrate, and these vibrations are converted into the sensation of sound.

Why can humans only hear sounds within a limited frequency range?

The conversion of sound waves into vibrations of solid parts of the ear only works over a limited range of frequencies.

True or false? A healthy human can hear a sound of frequency 25 kHz.

False. It is above the upper limit of human hearing, 20 kHz.