Reflection - The bouncing back of a wave after it strikes a barrier., Refraction - The bending of a wave as it enters a new medium at an angle other than 90 degrees., Diffraction - The spreading out of waves through an opening or around the edge of an obstacle., Interference - The meeting and combining of waves., Constructive Interference - When two waves add together to make a larger wave., Destructive Interference - When two waves cancel each other out., Reflection, Refraction, Diffraction, Constructive Interference, Destructive Interference,

9c - Wave Interactions

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