p6 finals pt2

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1
True or False: when two waves combine, they do not exhibit superposition.
False
2
States that when two or more waves cross at a point, the displacement at that point is equal to the sum of the displacement of the individual waves.
The principle of superposition
3
Is an important idea that can explain phenomena including interference, diffraction, and standing waves.
superposition
4
Within the physical world, the observation of superposition is known as ??
interference
5
If the two waves are in phase there is constructive interference:the result amplitude is large, equal to the sun of the two wave amplitudes.
constructive interference
6
If the two waves are antiphase, there us destructive interference: the resulting amplitude is small, equal to the difference between the two wave amplitudes.
Destructive Interference
7
is equal to the absolute value of the difference in frequency of the two waves.
beat frequency
8
is the spreading out of waves as they pass through an aperture or around object.
diffraction
9
These are the waves that appear to be vibrating vertically without traveling horizontally.
standing wave
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