Matter and Energy Flashcard 14

Front

What is the study of sound called?

Back

Acoustics

Front

What is a loud noise caused by a shock wave?

Back

Sonic boom

Front

What is the effect of intensity on the way the human ear perceives sound?

Back

Loudness

Front

What unit is usually used to measure sound intensity level?

Back

Decibel (dB)

Front

What is sound that has too low a frequency to be heard called?

Back

Infrasound

Front

What is the term for sound waves that are above the frequency range of human hearing?

Back

Ultrasound

Front

What is the phenomenon called when sound bounces back after hitting a surface?

Back

Echo

Front

What is the measure of how loud a sound is perceived to be?

Back

Sound intensity level

Front

What is the term for the distance between successive peaks of a wave?

Back

Wavelength

Front

What is the frequency range of human hearing?

Back

20 Hz to 20,000 Hz