Electromagnetic Spetrum EMS

The higher the frequency, the shorter the wavelength.

MICROWAVES: An 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 to cook food, transmit information, and in radars that help predict the future. 300 MHz- 300 GHz.

RADIO WAVES: They have the longest wavelength of all the waves at 1 foot to several miles. They are used to transmit data, and are also used for radios, satellites, and computer networks. 3 kHz-300 GHz.

INFRARED: These are often known as ¨FAR¨ and ¨NEAR¨ Infrared waves. This is the most used wave everyday. It is not a visible wave but we can feel it in the source of heat. 430 THz-300 GHz.

X-RAY: X-rays are used by doctors, in airport security, and astronomers. X-rays can cause cell damage and cancer. X-Rays are produced when electrons strike a metal target. 30 PHz- 30 EHz.

VISIBLE LIGHT : This is the only part of the electromagnetic spectrum that we can see. They are given off my anything that is hot enough to glow. They are used in laser printers, weapon aiming system, and we use it to see things. 430-770 THz.

ULTRA VIOLET: This is made for special lamps, such as the lamps in sun beds. It is given off from the sun in large quantities. It is also knows as UV. It it used for getting sun tans, detecting forged bank notes. Big doses of UV can harm your eyes. 30 PHz- 750 THz.

GAMMA RAYS: Gamma rays are given off by stars and radioactive substances. They have extremely high frequency. They can kill cancer cells and is called Radiotherapy. They can be used to make a picture of what is going inside of the human body, when put into a body and scanned. Has the greatest frequency.

Credits:

Created with images by andymag - "waves" • FranckinJapan - "antenna gsm mobile" • NASA Goddard Photo and Video - "X Class Solar Flare Sends ‘Shockwaves’ on The Sun" • NASA Goddard Photo and Video - "NASA Sees Hurricane Celia Headed for Central Pacific" • oracast - "diagnosis xray chest" • Aiko, Thomas & Juliette+Isaac - "prism" • University of Exeter - "Hand Print by Natalie Garrett" • NASA Goddard Photo and Video - "Cassiopeia A supernova"

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