Wave Vocabulary Word Medium Definition Crest/Peak Trough Longitudinal wave Wavelength Frequency Amplitude Reflection When a wave bounces off of a surface such as a mirror Drawing Law of reflection Angle of incidence = Angle of reflection Incident ray See diagram Reflective ray See diagram Normal Red line in diagram Refraction Bending of waves that travel through different media Diffraction Waves bend around a barrier Constructive and Destructive Interference Waves add together (constructive) or cancel each other out (destructive) Wave: A disturbance that transfers energy from place to place through matter or space Seismic Waves: caused by earthquakes
