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Lesson 12.1: What are Electromagnetic Waves?

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Across
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A type of interference where waves cancel each other out
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The low points of a transverse wave
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When electromagnetic waves hit an object and bounce off
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Energy given off from a source in the form of waves
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A type of wave that is reflected or emitted from objects as electrical and magnetic
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Moving and bouncing off into another direction or speed
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A type of interference that gives the wave greater amplitude
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Light travels faster through air than _____
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The high points of a transverse wave
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Diffraction separates ____ _____ into component colors
Down
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Radio waves carry signals for cellular ____.
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Another word for "bounced"
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Colors of light have different ____.
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When energy of the wave is transferred to matter
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Electromagnetic waves are blocked by _____.
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How a wave bends around an object or spreads through an opening
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When two waves travel, merge, and change
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These waves have the longest wavelength
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The number of wavelengths in one second
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An example of diffraction
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Waves that are bent or scattered
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Radio waves have the _______ amount of energy in the electromagnetic spectrum