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Applications Radio waves and Broadcasting waves

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Applications. Radio waves and Broadcasting waves. Radio waves. A kind of electromagnetic light energy with wavelengths anywhere from a few centimeters to several kilometers long. Radio waves can be used to carry signals to and from spacecraft and Earth. Radio wavelengths. - PowerPoint PPT Presentation

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Page 1: Applications

Applications

Radio waves and Broadcasting waves

Page 2: Applications

A kind of electromagnetic light energy with wavelengths anywhere from a few centimeters to several kilometers long.

Radio waves can be used to carry signals to and from spacecraft and Earth.

Radio waves

Page 3: Applications

radio waves are the longest out of all the waves in the electromagnetic spectrum

The shortest radio waves are about 100 yards.

Radio wavelengths

Page 4: Applications

*Radio frequencies represent a subsection of electromagnetic energy found on the energy spectrum. *Signal strength differentiates the different types of radio waves, and all radio waves fall between 1mm and 100km in distance, and 3 KHz to 300 GHz in frequency.

Frequencies

Page 5: Applications

Both radio and light waves travel at the same speed

260,000 miles per second.

How Radio and light waves relate

Page 6: Applications

AM/FM radio

AM- broadcasted with a single specific carrier frequency.

*more range

*1 MHz, 300 m wavelength

FM - broadcasted with a specific amplitude.

*better quality

*100 MHz, 3 m wavelength

Page 7: Applications

"Glossary for 'Sign Here!' words ." Spaceplace. NASA, 17 June 2008. Web. 1 Mar. 2011. <http://spaceplace.nasa.gov/en/kids/spitzer/signs/ sign_glossary.shtml#top>.

Zitzewitz, Paul W, comp. Physics Principles and Problems. 2002 ed. New York: Glencoe, 2002. Print.

"About Radio Frequencies." eHow. N.p., 2011. Web. 1 Mar. 2011. Np

<http://www.ehow.com/facts_5969360_radio-frequencies.html>.

"KidsCommo." Regimental Division,Office Chief of Signal. N.p., 31 Jan. 2008.Web. 1 Mar. 2011. <http://www.signal.army.mil/ocos/rdiv/ForKids/ radowork.asp>.

"AM/FM Radios ." Physics Forums. vBulletin , n.d. Web. 2 Mar. 2011. nod

<http://www.physicsforums.com/showthread.php?t=132133>.