| A | B |
|---|
| Waves | Rhythmic disturbances that carry energy through matter or space |
| Medium | A material used through which a wave can transfer energy |
| Transverse Wave | The medium moves at right angles to the direction the wave travels |
| Crests | The highest point of a wave |
| Troughs | The lowest point of a wave |
| Wavelength | The distance between point on one wave and the same point on the next wave, such as from crest to crest or from trough to trough |
| Amplitude | The distance from the crest of a wave to the rest position of the medium |
| Frequency | The number of wave crests that pass one place each second |
| Compressional Wave | Matter vibrates in the same direction as the wave travels |
| Pitch | The highness or lowness of a sound |
| Intensity | Depends on the amount of energy in each wave |
| Loudness | The human perception of sound intensity |
| Noise Pollution | Includes sounds that are loud, annoying, or harmful to the ear |
| Music | Created using specific pitches and sound quality and by following a regular pattern |
| Noise | A kind of sound with no set pattern |
| Quality | Describes the differences among sounds of the same pitch and loudness |
| Resonance | A type of vibration |
| Interference | The ability of two or more waves to combine and form a new wave |
| Reverberation | An effect produced by many reflections of sound |
| Acoustics | The study of sound |
