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Chapter 16 SOUND

Chaper 16 SOUND Vocabulary

What is an echo? a reflected sound wave
What is elasticity? the ability for a material to rebound after being disturbed
What is density? how much matter is present in a certain amount of space
What is loudness your perception of the energy of the sound
What is intensity? the amount of energy a sound carries through a unit area
What is a decibel? the unit that measures the loudness of different sounds
What is pitch? how high or low the sound is percieved
What is an ultrasound? sounds with the frequency above a human's hearing ability
What is an infrasound? sounds with the frequencies below a human's hearing ability
What is the larynx? what protects your vocal cords in your throat
What is the doppler effect? the change in frequency of a wave as its source moves in relation to an observer
What are the causes of the doppler effect? when the source of the sound moves it adds to the vibration to the sound, increasing the frequency and creating the doppler effect
What are the causes of a sonic boom? if an object is traveling faster than the speen of sound, it creates a sonic boom
What is a fundamental tone? the lowest natural frequency of an object
What is an overtone? the highest natural frequency of an object
What are acoustics? the study of how sounds interact with each other/their enviorment
What is a reverberation? echos heard after the sound source stops producing sounds
What is the ear canal? the passage after the outer ear
What is an ear drum? the small, tightly stretched membrane-like
What is cochlea? a fluid filled cavity
What is an echolocation? the use of reflected sound waves to determine the location or the distnace of objects
What is a sonar? the system that uses reflected sound waves to detect and locate objects underwater
What is a sonogram? an object that uses reflected ultrasound waves to create a picture
Created by: Samerica