Vocab

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Across
  1. 6. of wavelengths or
  2. 8. =
  3. 10. Spectrum =
  4. 11. radiation"
  5. 12. Ray =
Down
  1. 1. = (of electromagnetic radiation) having a wavelength shorter than that of the violet end of the visible spectrum but longer than that of X-rays.
  2. 2. light=the segment of the electromagnetic spectrum that the human eye can view
  3. 3. electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.
  4. 4. electromagnetic radiation) having a wavelength just greater than that of the red end of the visible light spectrum but less than that of microwaves. Infrared radiation has a wavelength from about 800 nm to 1 mm, and is emitted particularly by heated objects.
  5. 5. over which electromagnetic radiation extends.
  6. 7. electromagnetic wave with a wavelength in the range 0.001–0.3 m, shorter than that of a normal radio wave but longer than those of infrared radiation. Microwaves are used in radar, in communications, and for heating in microwave ovens and in various industrial processes.
  7. 9. wave =an electromagnetic wave of a frequency between about 104 and 1011 or 1012 Hz, as used for long-distance communication.
  8. 13. electromagnetic wave of high energy and very short wavelength, which is able to pass through many materials opaque to light.