| A | B |
|---|
| speed | speed of sound depends on many factors, including density of medium |
| intensity | is the rate at which a wave's energy flows through a given area |
| decibel | measures intensity levels |
| loudness | physical response to intensity of sound |
| frequency | measured by how fast the source of the sound wave is vibrating |
| pitch | is the frequency of a sound that your perceive |
| ultrasound | sounds that are higher than most people hear |
| sonar | a technique for determining the distance to an object under water |
| doppler effect | a change in sound frequency caused by motion of sound source, motion of listener, or both |
| resonance | is response of a standing wave to another wave of the same frequency |
