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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 |