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Decibel
The unit of measure for the volume of sound.
Frequency
The number of vibrations that occur during a unit of time.
Pitch
The highness or lowness of a sound.
Sonar
Sound waves that are bounced off of objects to produce an image or calculate disturbance.
Sound Energy
A series of vibrations traveling in waves.
Ultrasound
High frequency sound waves used to produce images (pictures).
Vibrations
Back - and - forth movements of an object.
Volume
The loudness of a sound.
Wave
A disturbance that transmits energy (could be a sound or light).
Medium
Solid, liquid, or gas that sound travels on.
Sound Travels
Fastest through a solid, slower a liquid and slowest through a gas.