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Chapter 14 Lesson 1
Waves
| Term | Definition |
|---|---|
| waves | disturbances that transfer energy from one place to another without transferring matter |
| amplitude | maximum distance a wave varies from its rest position |
| electromagnetic wave | travels through matter or through empty space |
| frequency | number of wavelengths that pass a point each second |
| longitudinal wave | particles of a medium move back and forth parallel to the direction the wave travels |
| mechanical wave | travels only through matter |
| refraction | change in direction of a wave as it changes speed, in moving from one medium into another |
| transverse wave | the disturbance is perpendicular to the direction the wave travels |