Behavior of Waves Chapter 10.3.

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Presentation transcript:

Behavior of Waves Chapter 10.3

Reflection Wave strikes an object and bounces off of it All waves can reflect Echoes Light

Law of Reflection The angle of the incident wave (in) equals the angle of reflection (out)

Refraction Bending of a wave caused by a change in speed as it the wave moves from one medium to another

Refraction of Light Light travels faster in air than water When waves slow down they bend toward the normal When waves speed up they bend away from the normal

Interference when two waves arrive at the same place at the same time, they combine to form a new wave Constructive interference Two waves add together, increases amplitude Example: louder sound Destructive interference Two waves subtract from each other, decreases amplitude Example: dead spots in auditoriums