17.3 Behavior of Waves.

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Presentation transcript:

17.3 Behavior of Waves

Review What is a transverse wave? What are longitudinal waves? What is it’s highest and lowest point? What are longitudinal waves? What is frequency? What is wavelength? How do you measure amplitude?

Reflection Reflection- occurs when a wave bounces off a surface that it cannot pass through Reflection does not change the speed or frequency of a wave, but the wave can be flipped upside down

Refraction Refraction- the bending of a wave as it enters a new medium at an angle. When a wave enters a medium at an angle, refraction occurs because one side of the wave moves more slowly than the other side.

Diffraction Diffraction- the bending of a wave as it moves around an obstacle or passes through a narrow opening A wave diffracts more if its wavelength is large compared to the size of an opening or obstacle.

Interference Interference- occurs when 2 or more waves overlap and combine together 2 types: Constructive-occurs when 2 or more waves combine to produce waves with larger displacements Destructive- occurs when 2 or more waves combine to produce a wave with a smaller displacements

Constructive Interference

Destructive Interference

Standing wave Pg 512