Wave - The disturbance which energy travels through , Medium - The material a wave travels through, Longitudinal Wave - Waves that goes side to side, Transverse Wave - Waves that go up and down, Mechanical Wave - A specific medium for a specific wave, Electromagnetic Wave - Waves that use light, Trough - The U shaped bowl in between waves, Amplitude - The height of a wave, Crest - The top/tip of a wave, Sonic Boom - When an object breaks the sound Berrier (800 MPH) ,

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