"In Phase" (0°
difference)– points on a
single periodic wave that have the same displacement (from
equilibrium position) and
moving in the same direction
Whole number of wavelengths apart?
A & ____ A & ____ B & ___ B & ___
A & E, A & I, A & M
B & _, B & _, B & _
B & F, B & J, B & N
"Out of Phase"– (1800 difference)
- same displacement
from equilibrium position but going in a different direction
˝, 1˝, 2˝ etc wavelengths
apart
A & C, B & D, F & H
Which 2 points are in phase?
C and F
2 points that are 180° out of
phase?
B and D
E and G
E.
Wavelength
– distance between two consecutive points in phase