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EM Spectrum
Electromagnetic spectrum characteristics
Wave type | trait |
---|---|
gamma rays: made from | sun and radioactive elements |
gamma rays: used for | irradiation- kills germs, sterilize food/ medical equipment; kills cancer |
x-ray; made from | the sun and stars, OR electricity and tungsten |
x-ray: used for | astronomy/ medical field/ airports |
ultraviolet light: made from | the sun, welding, black light, tanning beds |
ultraviolet light: dangers | skin cancer and cataracts |
ultraviolet light: what we can see of it | humans can see as a sunburn; insects can see some of it |
UV light: used for | see pictures of the sun/ planet/ stars |
visible light | only part of the spectrum we can see ROYGBIV |
Infrared light: comes from | anything giving off heat |
infrared light: used for | night vision, security systems, heat seeking missiles, detecting hurricanes |
microwaves: used for | communications, radar equipment, food preparation |
radiowaves: used for | radio, TV, cell phone, communicating w/ and analyzing space |