1. Wave Behavior

2. 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.

3. Constructive Interference

4. Destructive Interference

5. Examples: Colors

6. Examples: Ripples

7. Examples: Ducks ?

8. 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

9. Fixed End

10. Free End

11. Behavior 3: Diffraction ~ waves will bend when they hit a barrier

12. Example: Break wall

13. Example: CD’s

14. Head light with no diffraction
Example: Eyes
Head light with no diffraction

15. Diffraction effect caused by pupil
Example: Eyes
Diffraction effect caused by pupil

16. Diffraction effect caused by eyelashes
Example: Eyes
Diffraction effect caused by eyelashes

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

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

19. Example: Eyes 1 2 3 4 5