1. Ch. 10.3 Wave Interactions OBJECTIVES
Describe the 4 kinds of wave interactions
Differentiate between angle of incidence and angle of reflection
Compare / Contrast constructive and destructive interference

2. 4 Types of Wave Interactions
Reflection
Diffraction
Refraction
Interference

3. Reflection Occurs when a wave bounces off a surface
Waves reflect off a surface at the same angle they hit the surface
Angle of incidence = Angle of reflection

4. Diffraction
The bending of a wave as a result of the interaction between a wave and the edge of an object

5. Refraction Bending of a wave as a result of a change in the wave speed
Waves travel at different speed through different mediums

6. Interference Interaction of 2 or more waves
Constructive Interference – occurs when 2 wave crests meet at the same time at the same location
Destructive Interference – Occurs when the crest of one wave meets the trough of another wave at the same time at the same location