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Chapter 16 SOUND
Chaper 16 SOUND Vocabulary
Question | Answer |
---|---|
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 |