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40 Cards in this Set
- Front
- Back
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material that does not allow light to pass through it
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opaque
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inventor of electric light bulb
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Thomas Edison
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material which allows light to pass straight through it
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transparent
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blue dresses appear blue because the dress is
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reflecting blue light
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material allows light to pass through it, but you cannot see objects on the other side of it
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translucent
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bending of light rays as they enter a new material
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refraction
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type of line light always travels in
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straight
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an object is black because
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all the colors of the spectrum are absorbed by the object
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a mixture of colored lights
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white light
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series of colored bands that are created when sunlight is separated
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spectrum
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name the colors of the spectrum in order
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red, orange, yellow, green, blue, violet
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mirror which bulges toward the viewer and makes things look smaller
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convex
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large bundle of fibers that carries the message of what the eye has seen to the brain
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optic nerve
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mirror which bulges away from the viewer and makes things look bigger
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concave
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structure behind the pupil that refracts and focuses the light it receives
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lens
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lens which refracts light rays and brings them into focus
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convex
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light-sensitive lining covering the inside of the eyeball
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retina
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lens which scatters light rays
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concave
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muscels that regulate the size of the pupil are found in
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iris
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draw and identify the following lens
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concave
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draw and identify the following lens
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convex
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opening that allows light to enter the eye
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pupil
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transparent layer covering the front of the eyeball
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cornea
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type of mirror Sir Isaac Newton's reflecting telescope used
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concave mirror
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type of vision in which both eyes work together to produce an image of the same object
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binocular vision
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What is the ability to do work called?
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energy
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extra layer of reflecting cells behind the retina that many nocturnal animals have
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tapetum
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What do you call the dark spot cause by an opaque object?
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a shadow
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Nearsighted people need glasses with what type of lense?
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a concave lense
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What instrument allows scientists to see tiny objects?
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a microscope
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Name the piece of glass that separates white light into the spectrum.
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a prism
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Name for man-made light.
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artificial light
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What are used in periscopes to enable their users to see around corners?
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mirrors
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Who discovered the spectrum?
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Sir Issac Newton
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Objects which give off light, such as fireflies or stars, are _____.
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luminous
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Name the three colors which are considered warm colors.
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red, orange, and yellow
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Name used for a curved piece of transparent material that makes things look smaller or larger.
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lens
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Name of the invisible light that causes sunburn.
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ultra-violet light
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Be able to discuss how your eyes plus light allow you to see objects.
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See science text p. 89, last paragraph
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Be able to explain why you see lightning flash before you hear the thunder.
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See science text p. 74, 2nd column
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