Waves

Amplitude: The maximum displacement of a

point above the equilibrium point.

Frequency: The number of cycles of a wave

that pass a point per second.

Wavelength: The minimum distance between

two adjacent points in a wave that are in phase

with one another.

 Wave Speed: the change in distance per unit time of a wave  

Phase Difference: The cycle difference

between the vibrations of two vibrating

particles

Path difference: The difference in distance

from two coherent sources to an interference

fringe

Stationary Waves: a standing wave

produced when two progressive waves of the

same frequency, amplitude, and opposite

direction pass through each other.

Coherent: two sources of waves that emit

waves with a constant phase difference.

Interference: When two or more waves

interact with one another

Diffraction: The spreading of waves passing

through a gap or near an edge