Sound
A vibration that can be heard.
Sound
Sound moves through matter in __________.
Waves
How loud or soft a sound is.
volume
A sound wave that bounces back toward its source and is heard again.
echo
Humans make sounds as air causes their _________ to vibrate.
vocal folds
The distance from one sound compression to the next.
wavelength
How high or low a sound is.
pitch
Scientists call the ability to see with sound _________.
echolocation
Sound moves through matter in __________.
waves
A machine that changes sound waves into electrical pictures seen on a graph.
oscilloscope
The quality a sound that distinguishes it from other sounds.
timbre
A type of echolocation developed by man to locate items underwater.
sonar
Sound waves can be described as _______ waves.
mechanical
The number of waves that pass a point in one second.
frequency
The science of sound.
acoustics
The intensity of sound is measured in _____.
decibels
A sound below the level of human hearing.
Infrasound
The part of a sound wave where the motion of each vibration pushes together some of the particles of matter.
Compression
A person who applies the science of sound.
acoustical engineer
Frequency is measured in a unit called _______.
hertz