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25 Cards in this Set

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opaque
reflects or absorbs all light that strikes it (for example: wood or metal)
translucent
material that scatters light as it passes through
diffuse reflection
occurs when parallel rays of light hit a bumpy, or uneven, surface.
image
is a copy of an object formed by reflected or refracted rays of light
plane mirror
a mirror that is flat
concave mirror
a mirror with a surface that curves inward like the inside of a bowl
convex mirror
a mirror with a surface that curves outward
index of refraction
is a measure of how much a ray of light bends when it enters that material
mirage
is an image of a distant object caused by refraction of light
concave lens
is thinner in the center than at the edges
convex lens
is thicker in the center than at the edges
primary colors
light makes red, green, and blue
complementary color
any two colors that combine to form white light
pigments
are opaque substances that are used to color other materials
cornea
the transparent front surface of the eye
pupil
is the part of the eye that looks black but is actually a hole that allows light to enter the eye
nearsighted
a person can see nearby things clearly, but objects at a distance appear blurry.
farsighted
a person who can see distant objects clearly, but nearby objects appear blurry.
telescope
forms enlarged images of distant objects
microscope
forms enlarged images of tiny objects
laser
light amplification by stimulated emission of radiation
hologram
a 3 dimensional photograph created by using the light from a laser
optical fibers
long, thin strands of glass or plastic that can carry light for long distances without allowing the light to fade out
tansparent
a material that transmits all light
camera
uses lenses to focus light and record an image of an object and the lens focuses the light to form a real image on the film