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Lesson 12.1: What are Electromagnetic Waves?

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