| A | B |
|---|
| underwater sound detecting system | sonar |
| perception of sound intensity | loudness |
| sounds with frequencies about 20,000 Hz | ultrasonic |
| multiple echoes in a concert hall | reverberation |
| multiples of the fundamental frequency | overtones |
| determined by amplitutde of a sound wave | intensity |
| regular patter of pitch and rhythm | music |
| study of sound | acoustics |
| perception of the frequency of sound | pitch |
| used by dolphins to find prey | echolocation |
| difference among sounds of the same pitch | quality |
| change of pitch due to a moving wave source | Doppler shift |
| passes sound vibrations to the middle ear | eardrum |
| hollow chamber that amplifies sound when air is vibrated | resonator |
| coiled structure in the inner ear | cochlea |
| gathers sounds waves | outer ear |
| part of the ear that amplifies waves | middle ear |
| part of the ear that converts waves to nerve impulses | inner ear |
| instrument that produces sound by plucking, striking, or drawing a bow across | strings |
| instruments that rely on vibrations of air to make musics | brass and woodwinds |
| these instruments are struck, shaken, rubbed or brushed to produce sound | percussion |
| a pulsing vibration in loudness | beats |
