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, Zac Capel, 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 10 9 to 10 11 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: 7.5x10 14 through 3x10 16 UV light has more energy but a shorter wavelength than infrared light and visible light

14. 1.UV light is invisible light, so it can’t be seen. 2.It has higher energy and a shorter wavelength than visible light 3.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: 3.1 16 Hz to 3x10 19 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