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Vocab chapter 22-23
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15
Science
8th Grade
02/25/2013

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Term
Electromagnetic waves
Definition
a wave that can travel through an empty space or matter that consists of changing electric and magnetic fields.
Term
Radiation
Definition
transfer of energy as magnetic waves.
Term
Electromagnetic spectrem
Definition
All of the frequencys or wavelengths of electromagnetic radiation
Term
Absorbtion
Definition
in optics the transfer of light energy to particles of matter
Term
Scattering
Definition
an interaction of light with matter that causes light to change its energy, direction of motion, or both
Term
transmission
Definition
the passing of light through matter
Term
transparent
Definition
allows light to pass through with litte interference
Term
translucent
Definition
has a little more interference of the light than in transparent
Term
opaque
Definition
describes and object that is all interference no light passes through
Term
plane mirror
Definition
a mirror that has a flat surface
Term
Concave mirror
Definition
mirror that is curved inward
Term
convex mirror
Definition
a mirror that is curved outward
Term
lens
Definition
a transparent object that refractes light wave such that they converge or diverge to create an image
Term
Convex lens
Definition
a lens that is thicker in the middle
Term
Concave lens
Definition
a lens that is thinner in the middle
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