Game Smartz

Sound

Science

Sound Chapter Video

Sound Chapter Video

acoustics

the study of sound
acoustics Simple Definition

cochlea

a fluid-filled spiral structure in the ear that converts sound vibration into nerve impulses
cochlea Simple Definition

decibel

a unit of sound loudness
decibel Simple Definition

doppler effect

the change in pitch of a sound when the source is moving relative to the listener
doppler effect Simple Definition

eardrum

a membrane in the outer ear that transmits sound vibrations to the middle ear
eardrum Simple Definition

echo

a reflected sound wave
echo Simple Definition

echolocation

the use of reflected sound waves to locate objects
echolocation Simple Definition

intensity

the amount of energy a wave carries through a unit area in one second
intensity Simple Definition

loudness

how loud or soft a sound is perceived to be
loudness Simple Definition

music

sounds combined in a pleasing way
music Simple Definition

overtone

any frequency higher than the fundamental frequency of sound
overtone Simple Definition

pitch

how high or low a sound is, as determined by its frequency
pitch Simple Definition

reverberation

the echoes of sound waves
reverberation Simple Definition

sonar

the use of the reflection of sound waves to locate underwater objects
sonar Simple Definition

sound quality

the difference between sounds having the same pitch and loudness
sound quality Simple Definition

ultrasonic

sound waves with frequencies above 20,000 Hz
ultrasonic Simple Definition

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