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chapter16sound vocab
Term | Definition |
---|---|
Echo | a reflection sound wave |
Elasticity | the ability of a material to bounce back after being disturbed |
Density | is how much matter,or mass there is in a given amount of space ,or volume |
loudness | describes you perception of the energy of a sound |
intensity | the amount of energy a sound wave carries per second through a unit area |
decibel (db) | the loudness of different sounds is compared using a unit |
pitch | sound is a description of how high or low the sound seems to a person |
ultra sound | sound with frequencies above the normal human range of hearing |
infrasound | sounds with frequencies below the human range of hearing |
larynx | your vocal cords are located there |
doppler effect | the change in frequency of a wave as its source moves in relation to an observer |
what cause doppler effect ? |