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Vocab 20
Term | Definition |
---|---|
Compression | an area ina sound wave where air molecules are pressed together |
Pitch | how high or low a sound is |
Sound | a form of energy produced by vibration objects |
Vibration | to move back and forth rapidly |
Volume | the loudness of a sound |
Wavelength | the distance between one crest and the next crest of a sound wave |
Reflection | the bouncing back of light rays from a surface |
Refraction | the bending of light rays as they move from one material into another |
Echo | the repeating of a sound caused by the reflecting of sound waves |
Sonar | a device used for detecting the presence and location of objects using sound waves |