| A | B |
|---|
| resonance | process - object made to vibrate by absorbing energy at natural frequency |
| music | collection of sounds in deliberate pattern |
| sound quality | difference between sounds same pitch & loudness |
| overtone | vibration - frequency is multiple of fundamental frequency |
| resonator | air-filled hollow chamber amplifies sound |
| acoustics | study of sound |
| echolocation | process - interpreting reflected sound waves when emitted |
| ultrasound | frequency above 20,000 Hz - not heard by humans |
| echo | reflection of sound from a surface |
| sonar | system of underwater reflected sound waves |
