| A | B |
|---|
| Sound | a disturbance that travels through a medium and comes in the form of a longitudinal wave |
| larynx | two folds of tissue that make up the voice box |
| elaticity | the ability for material to bounce back after being disturbed |
| density | amount of mass or matter there is in a given amount of space or volume |
| intensity | the amount of energy the wave carries per second through a unit area |
| loudness | perception of the intensity of time |
| decibels | a unit of measurement of loudness |
| ultrasound | sound waves with a frequency above the range of human hearing human hearing |
| infrasound | sound waves below the range of human hearing |
| pitch | a description of how high or low the sound seems to a human being |
| doppler affect | apparent change in frequency of a sound as the source moves in relation to the listener |
| sonar | a system of detecting reflected sound waves |
| echo location | the use of sound waves to determine distances or to locate objects |
