What is the process in which sound or light is absorbed and re-emitted in all directions?
what is scattered light?
100
What is the complementary color of blue light?
Yellow
100
This color light results when red, blue, and green light are mixed together.
What is white light?
100
A spread of colors is called
a spectrum
100
The first person to systematically study the color of light
Mr Newton
200
True or false (and explain) the sky looks the same color blue everyday.
False - it depends on what kind of molecules are in the air
200
Computer inks are made of what 4 colors and why is that?
magenta, yellow, cyan and black. Basically those 4 pigments can make up every color.
200
The sun emits all frequencies, but we perceive what as the brightest?
What is yellow-white?
200
What does it mean to be opaque? Give an example.
means its the color of light it reflects. a red shirt reflects red.
200
This is what happens when the frequency of incident light matches the natural frequency of the material.
What is absorption?
300
Why is the sky look blue? (use wavelength and scatter in your answer)
BECAUSE when the sun is directly shining on our location the highest frequency (shortest wavelength) that humans can see is blue - and because its a short wavelength it gets bounced off of lots of molecules so we see it the most
300
What are complementary colors?
Two colors that add to make white.
300
This principle is utilized in creating all the different colors we see on our computer screens. (hint: primary colors of light, when mixed, it's called what?)
What is color addition?
300
What does it mean to be transparent?
Transparent means its the color of light it transmits (passes through)
300
Water molecules absorb what color?
What is red?
400
Describe the relationship between the size of the particle and the frequency of light it scatters. Follow up: What color of light does a large particle scatter?
The tinier the particle, the higher the frequency of light it scatters. The larger the particle, the lower the frequency. Large particles scatter low frequency light, such as those in the "red" range.
400
If you add blue and yellow light together you get what color?
White
400
When green is mixed with this color, white light results.
What is magenta?
400
What is a radiation curve?
It shows the graph of brightness versus frequency.
400
Why are clouds white?
b/c the water droplets of all sizes scatter all the colors of light
500
Why are sunsets red?
B/c at sunset the earth is the longest distance from the sun and the high frequency blue waves get scattered more white the lower frequency longer wavelengths of the red and orange are scattered least and are now able to be seen by the eye
500
Why do they say black and white aren't really colors?
because white is the combo of all colors and black is the absence of colors
500
If you mix red, green, and blue pigments together the colors together, what is this called and what color results and why?
It's called color subtraction, it looks black, and it happens because there are no reflected colors
500
What is the difference between additive primary colors and subtractive primary colors?
additive - colors of light subtractive - colors of pigments