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science for mr.spinka

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
material that reflects light that strikes it?   opaque  
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complemnetary colors are what?   any 2 colors combined  
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the transparent part of the eye is?   the cornea  
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a near sighted person can see?   near objects claerly and far away objects blurry.  
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2 colors that combine to form a secondary color are called   complementary color  
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electromagnetic waves ...   consist of electric and magnetic fields.  
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polarizing filters indicate that light?   sometimes travels in waves.  
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rainbows form because...   different wavelengths refract by diffrent amounts.  
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a __________________ light bulb uses a filament   incandescent  
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how long does it take for light from the sun to get to earth?   8 minutes  
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which of the following can be sensed by humans?   infared  
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one application for ultraviolet rays is....   killing bacteria  
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___________ images are upside right   virtual  
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the ______________ is how much a ray bends   index of refraction  
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rods are cells that...   distinguish black and white.  
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a cell phone transmits signals using?   high frequency radio waves  
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electromagnetic waves travel at the same speed but have diffrent   frequencies  
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most of the energy produced by incandescent light is given off as ?   heat  
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fireflies produce light called   bioluminescence  
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an infared camera takes a picture called a   thermogram  
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micro waves are good for heating food because?   microwaves heat food quickly  
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to send a t.v signal across the country networks can use ?   communication satellite.  
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a plane mirror has a ?   flat surface  
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optic fibers carry light across long distances because?   light travels paralles to the surface of the fiber  
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Created by: garcia14
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