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4 th SI Electromagnetic Waves POWERPOINT

4 th SI Electromagnetic Waves POWERPOINT. Definition: Gamma Rays. A electromagnetic wave with the highest frequency. Frequency Range >10^19 Hertz. Moon seen with Gamma Rays. Important Info. 1 Can treat cancer by killing disease cells. Important Info. 2 Most powerful of all EM waves.

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4 th SI Electromagnetic Waves POWERPOINT

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  1. 4th SI Electromagnetic Waves POWERPOINT

  2. Definition: Gamma Rays A electromagnetic wave with the highest frequency. Frequency Range >10^19 Hertz Moon seen with Gamma Rays.

  3. Important Info. 1 • Can treat cancer by killing disease cells. • Important Info. 2 • Most powerful of all EM waves. • Important Info. 3 • Shortest wavelength of all light waves. By: Jason Ong, ZacCapel, Lauren Tucker, and Morgan Hillard

  4. Infrared Waves • Definition: A category of light waves with wavelengths slightly longer than red visible light and can be felt as heat. • Frequency Range: 1-400 THz A demonstration of using infrared waves through the body of a dog. Showing the dogs temperature variations.

  5. Important info • Electromagnetic radiations • Used to show temperature variations • Wavelength is longer than visible light By: Jasmine Feng, Andi Kasper, Michael Tan, and Florence Min

  6. Microwaves • Microwaves are electromagnetic waves with a relatively high frequency that are longer than infrared waves but shorter than radio waves • The frequency range for microwaves is 109to 1011 Hertz This diagram shows how microwaves are used in a “microwave” to cook food

  7. Important Information • The length of microwaves can be between 30cm and 0.33 mm • Microwaves are used in cooking and in radars • Microwaves are longer than infrared waves but shorter then radio waves By: Joel Ludin, Emily Zeaman, and Matthew Bodziak

  8. Radio Waves • A radio wave is an electromagnetic that has the lowest possible frequency, greatest wavelength, and the least amount of energy of light waves. • The frequency range of Radio Waves is 3kHz to 300GHz, and has a wavelength of tenths of meters to millions of meters. Air traffic control centers use radar to track the location and speed of airplanes. This is a digital display of the data collected.

  9. Important Information • Radio Waves combine with RADAR and the Doppler Effect to allow police and air traffic control towers to track speed, using technology such as RADAR systems. • The radio wave portion of the electromagnetic spectrum includes TV signals, AM/FM radio signals, and other radio waves. • Radio waves carry signals to televisions and cellular phones, allowing pictures to transfer between devices. By Alex Gunnerson, Daniel Guo, and Ian Erkkila

  10. TV and Radio Waves By: Austin Bolomey, Ryan Xie, and Aaron Friedman

  11. Definition and Frequency Range Definition • An Electromagnetic wave longer than microwaves. Frequency Range • One tenth of a meter to millions of meters Various TV, AM, and FM waves.

  12. Important Info • Used for communications. • Radar- radio detection and ranging- used to determine velocity and location. • Includes TV Waves, AM and FM radio, and Radar. By: Aaron Friedman, Ryan Xie, and Austin Bolomey

  13. Ultraviolet light • Definition: An invisible germicidal, light that comes from the sun or any other source of light. • Frequency range: 7.5x1014 through 3x1016 UV light has more energy but a shorter wavelength than infrared light and visible light

  14. UV light is invisible light, so it can’t be seen. It has higher energy and a shorter wavelength than visible light The sun is the main source of UV light, I can damage skin and cause sunburn. It is the light they use in tanning beds. By: Maria Ulatowski, Emily Gilbert, Celia Schwartz, Matt Besmen

  15. Visible Light • Visible Light is electromagnetic light that can be seen by humans. • Frequency: 400-790 Thz • Wavelength: 390-750 nm Visible light shown in an electromagnetic spectrum.

  16. Visible Light • Wavelength correspond with colors. • Humans cannot see some colors such as unsaturated pink. • The ocean is blue because: • The ocean reflects the sky. • Particles in water reflect the blue light. By: David, Alark, Peter

  17. X-Rays

  18. Definition & Frequency Range • Definition: A relatively light energy wave with a wavelength from .10 to 10 nanometers. These photons are used especially in medicine for the penetrating ability. • Frequency Range: 3.116 Hz to 3x1019 Hz This is an x-ray of a persons chest.

  19. Important Information • Used in medicine for penetrating ability. • Smaller wavelength than UV waves, therefore containing more energy. • X-rays do not go through dense materials, therefore you see shadows. By: Igor Tutelman, Nathan Altstadt, Tessa Tenorio and Lauren Huang

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