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41 Cards in this Set

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