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electromegnetic wave: transverse wave that transfers electrical and magnetic energy. Travels at the speed of light

electromagnetic radiation: energy transferred through space by electromagnetic waves

radio waves: electromagnetic waves with the longest wavelengths and lowest frequencies

microwaves: radio waves with the shortest wavelengths and the highest frequencies.

radar: system that uses reflected radio waves to detect objects and measure their distance and speed.

infrared waves: lies between radio waves and visible light.

thermogram: image showing regions of different temperatures in different colors.

visible light: electromagnetic waves visible to the human eye.

ultraviolet rays: lies between visible light and x-rays.

x-rays: lies between ultraviolet rays and gamma rays.

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