Sound VQ

The frequency range over which we can hear

• audible range

• Doppler Effect

• infrasound

• ultrasound

Slow vibrations of frequencies lower than 20 Hz; any sound with a frequency below the range of human hearing

• audible range

• Doppler Effect

• infrasound

• ultrasound

Any sound wave with frequencies higher than 20,000 Hz; any sound with a frequency above the range of human hearing

• audible range

• Doppler Effect

• infrasound

• ultrasound

The apparent change in the frequency of a sound caused by the motion of either the listener or the source of the sound.

• audible range

• Doppler Effect

• infrasound

• ultrasound

Describes the rate at which a sound wave transmits energy through a given area of a medium

• decibel

• intensity

• loudness

• pitch

How loud or soft a sound is perceived to be; depends partly on the energy contained in the sound wave.

• decibel

• intensity

• loudness

• pitch

A unit used to measure the intensity of a sound.

• decibel

• intensity

• loudness

• pitch

A measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave; frequency of sound measured in Hz.

• decibel

• intensity

• loudness

• pitch

How fast or slow sound waves pass through an elastic medium. It varies by material

• echo

• Doppler Effect

• speed of sound

• sound wave

A sound caused by the reflection of sound waves.

• echo

• Doppler Effect

• speed of sound

• sound wave