5E. Deignan. UltraViolet by Mary Deignan https://padlet.com/3103651/6cya0qva29la en-us 2017-04-26 00:44:35 UTC 2025-10-23 01:37:53 UTC hello@padlet.com Ultra-Violet Radiation 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168258321 2017-04-26 00:48:21 UTC https://padlet.com/3103651/6cya0qva29la/wish/168258321 Where is Ultra-Violet located on the Electromagnetic Spectrum? 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168258479 Ultra-Violet is located after visible light and right before x-rays. It is located here because of its wavelength, energy, and frequency. ]]> 2017-04-26 00:50:31 UTC https://padlet.com/3103651/6cya0qva29la/wish/168258479 Key Characteristics 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168259022 Wavelength- 10nm to 400nm
Frequency- 8 x 1014 to
3 x 1016 Hz
Energy- 4.8065-19 to 1.9867-17 joules
Key Facts- 
4 Subtypes- used when dealing with astronomical objects
  • Near/NUV- (300-400nm)
  • Middle/MUV- (200-300nm)
  • Far/FUV - (100-200nm)
  • Extreme/EUV- (10-100)
    • Can only travel through vacuum
    • Completely absorbed in atmosphere 
    • Thermosphere is heated mainly by EUV waves from the sun
    • measured using rockets and satellites
3 Subtypes- 
  • UV-A light- 
    • (320-400nm) longest wavelength
    • least harmful
    • “black light”- used to cause objects to emit fluorescence
    • insects and birds and perceive visually
  • UV-B light- 
    • (290-320nm)
    • Causes sunburns 
    • Increases skin cancer risk and other cellular damage
    • About 95% is absorbed by ozone in atmosphere
  • UV-C light
    • (100-290nm)
    • Extremely harmful and almost completely absorbed by atmosphere
    • Used as disinfectant in food, air, and water to kill microorganisms by destroying their cells nucleic acids



]]> 2017-04-26 00:55:38 UTC https://padlet.com/3103651/6cya0qva29la/wish/168259022 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168260250 2017-04-26 01:10:00 UTC https://padlet.com/3103651/6cya0qva29la/wish/168260250 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168260334 2017-04-26 01:10:53 UTC https://padlet.com/3103651/6cya0qva29la/wish/168260334 Is Ultra-Violet radiation more harmful, helpful, or both? 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168262106 UV radiation is both harmful and helpful. It can be used to prevent counterfeiting and sterilize medical equipment as well as help us further our understanding of the universe. However, it also increase skin cancer risks, causes cellular damage, and can damage your eyes because 99% of the radiation is absorbed through your eyes. 

]]> 2017-04-26 01:29:46 UTC https://padlet.com/3103651/6cya0qva29la/wish/168262106 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168262521 2017-04-26 01:34:15 UTC https://padlet.com/3103651/6cya0qva29la/wish/168262521 How is UV radiation used in certain industries? 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168263423 Ultra-Violet Radiation is used to study stars and galaxies by looking at the UV light they give off.  It can also be used to sterilize medical equipment and is used on crime scenes. ]]> 2017-04-26 01:42:44 UTC https://padlet.com/3103651/6cya0qva29la/wish/168263423 Technical and Practical Uses of Ultra-Violet Radiation 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168263984 Technical- 
  • Forensics
Practical- 
  • Anti-Counterfeit (putting bills under blacklight)
  • CD/DVD players
  • Sun Tanning/Tanning Bed
]]> 2017-04-26 01:48:40 UTC https://padlet.com/3103651/6cya0qva29la/wish/168263984 This is a picture of the Galaxy M81 in Ultra-Violet 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168265269 2017-04-26 02:01:59 UTC https://padlet.com/3103651/6cya0qva29la/wish/168265269 Citations 3103651 https://padlet.com/3103651/6cya0qva29la/wish/168265454
  • Lucas, Jim. "What Is Ultraviolet Light?" LiveScience.      Purch, 31 Mar. 2015. Web. 25 Apr. 2017. <http://www.livescience.com/50326-what-is-ultraviolet-light.html>. 
  • "What Are the Uses of Ultraviolet Light?" Sciencing. N.p., n.d. Web. 25 Apr. 2017. <http://sciencing.com/uses-ultraviolet-light-5016552.html>. 
  • NASA. NASA, n.d. Web. 25 Apr. 2017. <https://science.hq.nasa.gov/kids/imagers/ems/uv.html>.
    • ]]>     2017-04-26 02:04:05 UTC https://padlet.com/3103651/6cya0qva29la/wish/168265454