Wave Behavior Behavior 1: Superposition~ 2 or more

Wave Behavior Behavior 1: Superposition~ 2 or more

Wave Behavior Behavior 1: Superposition~ 2 or more waves adding together to form a resultant

wave. (Waves will interfere with each other) Constructive Interference ~ waves add together and their resultant amplitude

increases Destructive Interference ~ waves add together and their amplitudes cancel each other.

Constructive Interference Destructive Interference

Examples: Colors Examples: Ripples

Examples: Ducks ? Behavior 2: Reflections

Reflection on a fixed end: reflected wave is opposite (upside down) Reflection on a free end: reflected wave is on the same side

demos Fixed End

Free End Behavior 3: Diffraction ~ waves will bend when they hit a barrier

Example: Break wall Example: CDs

Example: Eyes Head light with no diffraction

Example: Eyes Diffraction effect caused by pupil Example: Eyes

Diffraction effect caused by eyelashes Example: Eyes Diffraction effect caused by pupil and eyelashes

Example: Eyes Diffraction effect caused by pupil and eyelashes and fog

Example: Eyes 1 2

4 3

5

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