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1. Reflection
Reflection is the bouncing back of a wave after it strikes a boundary that does not absorb all the wave’s energy
*occurs because waves move at different speeds in different mediums*the bigger the change in speed the more the wave will bend
Watch a BrainPop on Refraction & Diffraction
*Waves can combine in two different ways.
A. Constructive Interference - waves combine to make a wave with a larger amplitude. After the waves pass through each other, they continue on as if they had never met