Prisms and lenses
True or false: prisms refract light
True
300,000,000 m/s
What is the speed of light?
White light
The result of mixing all colors (wavelengths) of light together
Mirror, my hand, brick wall
What are 3 opaque materials?
Waves with LOW frequency and BIG wavelengths
Which waves have the most energy?
Water droplets in the air
What is the prism that causes rainbows?
1/seconds
What is 1 Hz?
Blank uses ADDITIVE color mixing and blank uses SUBTRACTIVE color mixing.
RGB (light) and CYMK (pigments)
Reflect, refract, absorb
What are the main 3 things materials can do to light?
10^-9 m
What is a nanometer (nm)?
Blank lenses make things look BIGGER and blank lenses make things look SMALLER.
CONVEX or POSITIVE
CONCAVE or NEGATIVE
Who can draw the two types of lenses?
380 - 450 nm, 450 - 495 nm, 495 - 570 nm, 570 - 590 nm, 590 - 620 nm, 620 - 750 nm
What are the wavelengths of visible in the following order:
Violet, Blue, Green, Yellow, Orange, Red
The actual color you get from mixing Cyan, Yellow, and Magenta
Brown. A separate black ink is needed in printers to make real black.
Colored filters combine colors using BLANK mixing
SUBTRACTIVE, like paint
380 nm
3.8 x 10^-7 m
Grating (or tiny holes through which we can shine light)
Another way to separate the colors (wavelengths) of light, in addition to a prism.
(Grating does this by diffraction, not refraction.)
What do these numbers represent?
10^3 m, 10^-2 m, 10^-5 m, 0.5x10^-6 m, 10^-8 m, 10^-10 m , 10^-12 m
The wavelengths of waves in the following order:
Radio waves, Microwaves, Infrared light, Visible light, Ultraviolet light, X-rays, and Gamma-rays
In mixing pigments, what is being subtracted?
In subtractive color mixing, wavelengths of light are absorbed by pigments. When white light, which contains all colors of the spectrum, hits a surface with pigments, the pigments absorb certain wavelengths and reflect others. The reflected wavelengths are what we perceive as color.
A material that can sometimes reflect AND refract light is...
A prism
What color do you get if you combine complementary colors of light? Give an example.
White
Examples: Yellow+Blue, Magenta+Green, and Cyan+Red
Images are projected from the lens of the eye onto the BLANK.
Retina
What do these numbers represent?
10^20 Hz, 10^18 Hz, 10^16 Hz, 10^15 Hz, 10^12 Hz, 10^8 Hz, 10^4 Hz
The frequencies of waves in the following order:
Gamma-rays, X-rays, Ultraviolet light, Visible light, Infrared light, Microwaves, Radio waves
Adding BLANK and BLANK in the RGB color model gives you yellow.
Adding BLANK and BLANK in the CYMK color model gives you blue.
Red + Green
Cyan + Magenta
What happens when we see BRIGHT colors on a soap bubble?
Light reflects off both the outside and inside surfaces of a soap bubble, and interferes CONSTRUCTIVELY.
BLANK and BLANK give you Magenta in the RGB color model
BLANK and BLANK give you Red in the CYMK color model
Red + Blue
Yellow + Magenta