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Chapter 16
SOUND Vocabulary
Term | Definition |
---|---|
Echo | Sound waves reflected off a surface. Reflected sound wave. |
Elasticity | The ability of a material that has been disturned to bounce back. |
Density | How much matter, or mass, there is in a certain amount of space available, or volume. |
Loudness | The description of perception of energy of a sound. |
Intensity | The energy a sound wave carries per second through a unit area. |
Decibel(db) | The loudness of different sounds being compared. |
Pitch | How high or low the sounds seems to a person. |
Ultrasound | Sounds waves with frequencies above the human range of hearing |
Infrasound | Sound waves with frequencies below the human range of hearing |
Larnyx | Where your vocal cords are located. |
Doppler Effect | Change in frquency of a wave as its source moves closer or farther away. |
Cause and Effect of the Doppler Effect | when a sound source moves, the frequency of the waves change because the motion of the soure adds to the motion of the waves. |
Causes of a Sonic Boom | When a shock wave releases a huge amount of energy. |
Fundamental Tone | The lowest natural frquency of an object. |
Overtone | Higher natural frequencies. |
Acoustics | The study of how sounds interact with eachother and the enviroment. |
Reverberation | Echoes of a sound wave are heard after the sound source stops producing sound waves. |
Ear Canal | It collects sound waves and directs them into the canal. |
Ear Drum | The sound waves make your eardrum vibrate, and you strike it. |
Cochlea | Fluid filled cavity. |
Echolocation | The use of reflected sound waves to determine diistances to locate objects. |
Sonar | A system that uses reflectedvsounds waves to detect what sunder water. |
Sonogram | A device that uses reflected ultrasound waves to create a picture. |