Reflection –When a wave bounces back after striking a barrier SIM SIM2
Refraction –The bending of a wave as it passes at an angle from one material (medium) to another. SIM
Diffraction –The bending of waves around a barrier or through an opening. SIM SIM2
Interference Interference is the result of two or more waves overlapping. Constructive Interference –Occurs when the crests of one wave overlap the crests of another wave OR the troughs of the waves overlap
Interference Destructive Interference –Occurs when the crests of one wave and the troughs of another wave overlap
Standing Waves Standing wave SIM SIM –A wave that forms a stationary pattern. –Portions of the wave do not move and other portions have a large amplitude –At rest= total destructive interference –Large amplitude=constructive interference.
Sound waves are reflected at a boundary. (SIM1) (SIM2)SIM