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5 th SI Electromagnetic Waves POWERPOINT. Gamma Rays. Def.– High energy electromagnetic (EM) waves produced by radiation Frequency range –(3x10 18 )–(3x10 22 ). A Gamma Ray Burst. Gamma-Knife Surgery. Gamma Ray Uses Can cause and cure ( at left) cancer Are at top of EM spectrum
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Gamma Rays • Def.– High energy electromagnetic (EM) waves produced by radiation • Frequency range –(3x1018)–(3x1022) A Gamma Ray Burst
Gamma-Knife Surgery Gamma Ray Uses • Can cause and cure ( at left) cancer • Are at top of EM spectrum • Form of nuclear radiation By: Bryan Goroff, Andy Piks, Alicia Nimrick, and Alex Fan
Definition- An electromagnetic wave that gives off heat Frequency Range- 1011 to 1014 Infrared image of a blow-dryer
Important Information 1. Infrared wavelengths are longer than those of visible light. 2. Gives off heat and is used to keep food warm without cooking it too long. 3. Used to track cloud movement and to record temperature changes in the atmosphere. -By: Chewy Nair (Nair Bear), Ryan Ebenstein, Melanie Myeroff
Radio Waves Definition: the longest electromagnetic wave. Frequency Range: 109 Hz or lower An antenna that is sending out radio waves
Important Information Radio waves include TV signals, AM and Fm radio signals, radar, and aircraft navigation. Radio waves can’t be seen by the human eye. The wavelength of radio waves is greater than 30 centimeters. By: Jerry Ren, MaaryahMalik, Grace Yau, and Jake Adelstein
Radio Waves TebaSaleh, Andrew Rosen, Will Schechter, Bharath
Definition-An electromagnetic wave having a wavelength between 1 mm and 30 thousand meters • Frequency Range-between 10 kilohertz and 300,000 megahertz Radio waves being emitted from an antennae
Important Information • Radio waves have the longest wavelength of all the waves on the electromagnetic spectrum • Can be broadcasted in fm and am waves • Can transmit images • Used to locate images
Microwaves • Definition: microwaves are EM waves that have a length in the range of centimeters. They are slightly longer than infrared light, which in turn is slightly longer than visible light. • Frequency range: 109 – 1011
Microwaves • Microwaves are used in microwave ovens to heat substances from the inside out quickly by making the molecules vibrate. • Microwaves are used in telecommunication in some mobile phones. • Microwaves are invisible as their frequency/wavelength is less than that of visible light. By: Tianhui Fan, Samantha Slagle, Kyle Fisher, and Benjamin Stoler
Ultraviolet • Definition: A light wave just beyond violet in the visible light spectrum with higher energy and shorter wavelengths than visible light. • Frequency range: 1014.8 to 1015.5 Sunscreen helps prevent sunburn from ultraviolet radiation produced from the sun.
Important Info • Causes sunburns even on overcast days because of its high energy. • Nine percent of the sun’s energy is UV. • Wavelengths are 10-6.3 to 10-7.3 meters. By: Josie MacDougall, Becca Ilic, Max Rumizen
Visible Light • Definition-The only part of the electromagnetic spectrum that is visible to the human eye • Frequency Range- 4.3x1014 Hz to 7.5x1014 Hz
Important Information • Only waves visible to the human eye • Used in visible light photography, optical microscopes, and optical telescopes • Different frequencies account for different colors (in order of increasing frequency): Red, orange, yellow, green, blue, indigo, violet By Clancy Thomas, Phil Palumbo, ShreyansBafna, and RahulRambhatla
X-Rays Definition- rays that are used to penatrate objects and have higher energy and shorter wavelengths than ultraviolet waves.Frequency Range- 1015.5- 1021 A standing wave Spectrum
Important Info 1.) Discovered by Wilhelm Conrad Roentgen2.) Wave length is less than 10-8 m. 3.)Used to take images of the inside of objects and diagnostic radiography and crystallography. By: Louiza Wise, RituNarahari, Jacob Shannon, Kris Skugor