1
Q
emission
A
source of light
2
Q
emission
A
source of light
3
Q
reflection
A
light coming from an emission source bounces off a surface and goes to our eye
4
Q
scattering
A
light hits a surface and goes in all directions
5
Q
absorption
A
for black objects, every color is absorbed
for colored objects, the color we see is scattered, every other color is absorbed
6
Q
transmission
A
when light goes through a surface, it changes directions
7
Q
frequency
A
how much the peaks come
high frequency = lots of peaks
low frequency = not many peaks
8
Q
wave length
A
distance between the peaks
shorter wavelength = higher frequency
longer wavelength = lower frequency
9
Q
amplitude
A
height on the peak
10
Q
thermal radiaiton
A
- anything thats hot glows
- hot things have a shorter wavelength
11
Q
if a star is red..
A
its cooler
12
Q
if a star is blue…
A
its hotter
AST
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