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Waves

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- Wavelength () - length of one complete wave
- Frequency () - # of waves that pass a point during a certain time period
- hertz (Hz) = 1/s or s-1

- Amplitude (A) - distance from the origin to the trough or crest

crest

A

origin

trough

greater amplitude

(intensity)

greater frequency

(color)

HIGH

ENERGY

LOW

ENERGY

R

O

Y

G.

B

I

V

red

orange

yellow

green

blue

indigo

violet

HIGH

ENERGY

LOW

ENERGY

- Frequency & wavelength are inversely proportional

c =

c:speed of light (3.00 108 m/s)

:wavelength (m)

:frequency (Hz or s-1)