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41 Cards in this Set
- Front
- Back
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wall
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type of object
opaque |
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refraction
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the bending of light due to a change in speed
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optical fibers
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*are strnads of very pure glass
*tranmit information as flashes of light *do not help security devices or scalpels |
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cones are sensitive to
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a particular color
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laser light is produced
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normal atom becomes excited and produces 2 identical atoms
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tree
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type of object
opaque |
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black light
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absorbs all color hitting it
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pupil
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light enters here (47)
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cornea
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does mos of the refraction of light (48)
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lens
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*is a soft flexible lens (46)
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plane mirrors
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*produce vital images
*images appear on the otherside of the mirror *used in homes and industries |
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polarized light
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waves are vibrating in the same direction
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focal point
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is where reflected or refracted light rays meet
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a luminous object
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sends out light rays n all directions in straight lines.
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bread
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what happens to the light
absorbs |
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rods are sensitive to
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light and dark
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refraction of light by the earths atmosphere
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is a mirage
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retina
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is where the image if focused (49)
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lasers
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*produce an intense beam of light of one color
*helps audio and video cds |
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convex lens
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*image is larger when close up.
*image is upside down and smaller when far away. *corrective lens for a farsightedness person *it converges the rays |
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Light travels
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in sraight paths.
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mirror
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what happens to the light
reflect |
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plastic bag
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what happens to the light
transmit |
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magnifying glass
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what happens to the light
transmit refract |
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Iris
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controls the amount of light in the eye (45)
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images are upside down when
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formed in the back of the eyes
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reflection of light
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is the bouncing back of light off a surface of an object.
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optic nerve
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(50)
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matches
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what happens to the light
luminous |
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tent
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type of object
translucent |
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does not contridict
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the wavelike or particlelike characteristics of light
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holograms
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are 3d images
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visible light spectrum
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all colors made up of white light
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white light
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*reflects all light
*reflects all color hitting it *abosrbs no color |
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convex mirrors
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*used on cars (side and rearview mirrors)
*provides a large area of reflection *thicker in the center than at the edges |
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concave lens
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*image is smaller when close up
*image smaller when far away *corrective lens for a nearsightedness person *it diverges the rays |
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clear wrap
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type of object
transparent |
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colors in longest to shortest
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red, orange, yellow, green , blue, indigo, violet
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glass
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type of object transparent
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when light strikes matter it is either
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transmitted, reflected or absorbed
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concave mirrors
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*used in make up mirrors
*image looks larger *thinner in the center than at the edges |
