1. Waves

2. Wave Properties

3. Wave Terms, pt.1
Crest
Equilibrium
Trough

4. Wave Terms, pt. 2
Wavelength
Amplitude

5. Wave Properties A = amplitude λ = wavelength T = period f = frequency
ω = angular frequency
k = angular wave number

6. Period and Frequency

7. Wave Speed

8. Angular frequency and wave number

9. Wave Function

11. Wave Phenomena

12. Huygen’s Principle
All points on a wavefront are point sources for secondary wavelets. The next wavefront is formed by drawing a tangent to all the wavelets.

13. Animations Of Huygen’s Principle

14. Bending of a wavefront due to a change in medium.
Refraction
Bending of a wavefront due to a change in medium.

15. Bending of a wave due to an obstacle or opening
Diffraction
Bending of a wave due to an obstacle or opening

16. Reflection
Changing the direction of a wave’s motion due to a boundary between media