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Portion of the electromagnetic spectrum that is visible to humans
What is the visible spectrum
Objects that emit their own light are considered
What is luminous
Materials that allow some light through them
What are translucent
Made from a substance that absorbs all wavelengths of visible light
What is black
The primary subtractive colors are
What are magenta, cyan, and yellow
When light rays are reflected in all different directions is considered ________ reflection
What is diffuse
The reflection of a pool would be an example of a ___________ image
What is virtual
A car uses a _______ mirror to allow the driver to see behind the car
What is convex mirror
One object has a index of refraction of 2.334 while another has an index of refraction of 1.987. Which is closer to the speed of light
What is 1.987
Name the colors in decreasing wavelength order
What is red, orange, yellow, green, blue, indigo, violet
Light created by animals mixing chemicals inside of their bodies
What is bioluminescence
How would you create white light in terms of color mixing
What is mix all the primary additive colors together
If you are standing 5 ft. from a plane mirror, the image reflected will appear how far from you?
What is 10 ft, or 5ft feet back from the mirror
Made from mixing red and blue light
What is magenta
Scientist model how light behaves using a
What is a ray
The cells that detect color in the human eye are called
What are cones
Define what an opaque substance is
What is a substance that does not allow visible light through it
What occurs when incident rays reach the boundary between two media at greater than a critical angle and remains in the first medium
What is total internal refraction
A light ray approaching a reflective surface is called a
What is incident ray
Made from mixing cyan and magenta pigments
What is blue
What causes nearsightedness
What is a slightly misshapen lens causes light to focus in front of the retina
type of lens that bring light together, are thick in the center and thinner towards the edges, and help with farsightedness
What are convex lenses or converging lenses
A reflected image that can be projected on a screen
What is a real image
The higher the index of refraction is means
What is the slower the speed of light is
Why do a seemingly infinite number of colors exist
What is a continuous range of different wave lengths