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10 Cards in this Set
- Front
- Back
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what is the law of reflection?
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the angle of incidence is equal to the angle of reflection
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what is diffaction
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the reception of an AM-band radio signal over mountains
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what is sound
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longitudinal wave disterbances that travel through a medium
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what causes sound to vary
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frequency
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what are the basic charateristics of sound
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pitch, intensity and quality
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what are the primary colors of light
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red blue and green
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what are the secondary colors of light
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magenta cyan and yellow
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the magnetic field radiated from an antenna is produced by what electrical property
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current
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the eletric field radiated from an antenna is produced by what electrical property
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voltage
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eletric adn magnetic fields on an antenna reach their max intensity at what time
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when they are 1/4 cycle apart
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