# Chapter 16: Waves

 Occurs when waves bend around an object. Diffraction Two waves join to form a resultant of a wave of lower amplitude. Destructive Interference A change in direction that a wave experiences when it bounces off of a barrier between two mediums. Reflection Bottom of a transverse wave Trough Waves that have the same direction of vibration as their direction of travel. Compressional Waves Waves that do not require a medium to pass through. Electromagnetic Waves The change in direction & change in velocity that a wave experiences when it leaves one medium and goes into another. Refraction The part of a compressional wave when the particles are spread apart. Rarefaction Two waves join to form a wave of greater or lower amplitude. Interference  A great sea wave produced especially by submarine earth movement or volcanic eruption. Tsunami The height of a waves crest. Amplitude Two waves join to form a result of a wave of greater amplitude. Constructive Interference Waves that require a medium to pass through. Mechanical Wave Number of crests or troughs of a wave that pass a given point in a specified period of time, usually 1s. Frequency The distance between successive crests of a wave. Wavelength The speed in which waves travel. Wave speed The top of a transverse wave. Crest A wave where the vibrating element moves in a direction perpendicular to the direction of a wave. Transverse A material waves can pass through. Medium A rhythmic disturbance that carries energy and matter. Wave Authoroboe.beast ID192331 Card SetChapter 16: Waves DescriptionVocabulary for Mrs. Kinney's 'tic tac toe' project. Updated2013-01-12T02:45:52Z Show Answers