| A | B |
|---|
| wave | rhythmic disturbance that carries energy through matter or space |
| medium | a material through which a wave travels |
| transverse wave | type of wave where the medium moves at right angles to the direction the wave is travelling |
| crest | highest point of a wave |
| trough | lowest point of a wave |
| amplitude | distance from the rest position of the medium to either the crest or trough |
| frequency | number of wave crests that pass a point during one second |
| compressional wave | wave where matter vibrates in the same direction as the wave is travelling |
| acoustics | study of sound |
| pitch | highness or lowness of sound, which is determined by the frequency of sound waves |
| intensity | the amount of energy in each wave; measured in decibels |
| loudness | human perception of sound intensity |
| music | sound created using specific pitches, sound quality, and regualr patterns |
| noise | sound that has no regular pattern or definite pitch |
| resonance | tendency of an object to vibrate at the same frequency as another vibrating source |
| quality | the difference among sounds of the same pitch and loudness |
| interference | ability of two or more waves to combine and form a new wave |
| reverberation | the echoing effect produced by multiple reflections of sound |
| ultrasound technology | technology using high frequency sound waves for many different purposes |
