Set: Science Final!!!

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All 40 Terms

Term Definition
energy the ability to do work or cause a change in matter
electromagnetic radiation the energy given off by the Sun
visible light the type of E-M radiation that you can see
wave a disturbance that movess away from its starting point
vacuum a region that is empty of any matter
wave length the distance from one crest of the wave to the next crest
frequency the number of waves produced each second
hertz wave frequency is measured in a unit
reflection the bouncing back of light from a surface
plane mirror mirror with a flat surface
concave mirror mirror that curves inward at the middle
convex mirror mirror that curves outward at the middle
refraction bending of light as it passes from one material into another
lens a transparent object with at least one curved surface
convex lens a lens that is thicker in the center than it is a the edges
focal point point at which light rays passing through a lens comes together
concave lens a lens that is thicker at the edges than at its middle
retina the light-sensible layer at the back of the eye
contact lenses clear, thin lenses that are placed on the eye in front of the cornea
refracting telescope an instrument for viewing distant objects that uses two lenses to gather light and produce an image
reflecting telescope an instrument for viewing distant objects that uses a curved mirror at the back of its tube to gather light and produce an image
simple microscope a microscope that uses a single lens to magnify objects
compound microscope a viewing instrument that uses two lenses to magnify objects many times
electron microscope uses a beam of electrons instead of a beam of light
opaque doesn't let light pass through them
transparent light passes through them
translucent lets light pass through them
filters colored material that lets some colors of light through and some it does not let through
fluorescent light bulbs the type of light bulbs that are better for the environment, don't have a filament, and don't get as hot
incandescent light bulbs light bulbs most commonly used and contain a filament
Thomas Edison invented the light bulb
red the color with the longest wave length
violet the color with the shortest wave length
concave nearsighted people need what kind of lens?
convex farsighted people need what kind of lens?
Galilei who built the refracting telescope?
Newton who built the reflecting telescope?
yellow red and green light make:
magenta red and blue light make:
cyan blue and green light make:

Set Information

Terms 40
Creator utfanFRA33
Created May 15, 2008
Group FRA
Tags fra, science
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RRAAWWRR : this isnt a final its a 50 question test
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Most Missed Words

  1. wave length → the distance from one crest of the wave to the next crest - 5 misses
  2. filters → colored material that lets some colors of light through and some it does not let through - 5 misses
  3. electromagnetic radiation → the energy given off by the Sun - 4 misses
  4. wave → a disturbance that movess away from its starting point - 4 misses
  5. lens → a transparent object with at least one curved surface - 4 misses
  6. focal point → point at which light rays passing through a lens comes together - 4 misses
  7. transparent → light passes through them - 4 misses