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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 ? |