Chapter 4 Light

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Can you name the Chapter 4 Light Key Terms?

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DefinitionKey Term
Type of lens that is thicker in the center than at the edges
A curved piece of glass or other transparent material that is used to refract light
Colored ring of muscle that contracts and expands to change the size of the pupil
Two primary colors combine in equal amounts to produce a _____ color.
Cells of the retina that help you to see in a dark room
Cyan, yellow, and magenta are the primary colors of _____.
Type of image that is upright
This occurs when light rays enter a medium at an angle, changing the speed of the rays and causing them to bend
An opening through which light enters the eye
Cells of the retina that help you to see color
Type of mirror that is a flat sheet of glass that has a smooth, silver-colored coating on one side
Tool that forms enlarged images of distant objects
A layer of cells that lines the inside of the eyeball
Light waves that all have the same wavelength are said to be _____.
The color of an opaque object is the color of light it _____.
A measure of how much a ray of light bends when it enters a material
Person who can see distant objects clearly, but nearby objects appear blurry
Muscles that hold the lens in place behind the pupil
Type of reflection that occurs when rays of light hit a smooth surface, creating a clear reflection
Transparent front surface of the eye that protects the eye and acts as a lens
Material that transmits most of the light that strikes it
A colored substance that is used to color other materials
DefinitionKey Term
Type of reflection that occurs when rays of light hit a bumpy or uneven surface, creating a blurry reflection
A copy of an object formed by reflected or refracted rays of light
Type of image always formed by a plane mirror
material that reflects or absorbs all of the light that strikes it
An image of a distant object caused by refraction of light
Red, green, and blue are the three primary colors of _____.
Long, thin strand of glass or plastic that can carry light for long distances without allowing the light to escape
An optical instrument that forms enlarged images of tiny objects
The three primary colors of pigments mixed together in equal amounts produce this color
Type of lens that is thinner in the center than at the edges
Person who can see nearby things clearly, but objects at a distance are blurred
A device that produces a narrow beam of coherent light
The color of a transparent or translucent object is the color of the light it _____.
Type of image that is upside down
Material that scatters light as it passes through
If you look at a yellow banana under green light, what color will the banana appear to be?
A mirror with a surface that curves outward
Type of image always formed by a convex mirror
A mirror with a surface that curves inward like the inside of a bowl
A 3-D photograph created by using the light from a laser
Short, thick nerve that sends signals about sight to the brain
When combined in equal amounts, the three primary colors of light produce what color light?

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