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Mechanical And Electromagnetic Waves

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lang wang

on 27 May 2011

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Transcript of Mechanical And Electromagnetic Waves

electromagnetic waves- are transverse waves consisting of changing electric fields and changing magnetic fields The Difference between
Machanical and Electromagnetic Waves machanical waves- is a disturbance in matter that carries energy from one place to another What are mechanical and eletromagnetic waves? Electromagnetic waves can be produeced by constantly changing fields such as electrical fields and magnetic fields. Mechanical waves are created when a source of energy caused by vibration to travel through a medium. by: Lang Wang How are they produced? How do the waves travel Are there different types of mechanical and electromagnetic waves? What are some properties of mechanical and electromagnetic waves? How Do the Two different Waves Behave? Mechanical waves travel through mediums such as solids, liquids, and gases. they also trave on vibrating mediums. Electromagnetic waves can travel through a vaccum or empty space as well as matter by using eletromagnetic radiations. electromagnetic waves also travel at the speed of light. There are three main types of mechanical waves, Transverse waves, longitudinal waves, and surface waves. transverse waves- cause mediums to vibrate at a right angle in the same direction as the wave. Longitudinal waves- vibration of a medium is parrallel to the direction of the wave. Surface waves- waves that travels along a surface separating two media. There are no different types of electromagnetic. They are transveral waves that travel at a right angles, but they do vary in wave lieghts and frequancy. One property mechanical waves have frequencies that are in periodic motion. Another property is when the wave enter a new medium or if there is a change in temperature or pressure, the waves speed changes as well. One property that electromagnetic waves have is that they dont need a meduim like mechanical waves to transfer energy. When Mechanical wave reflects, it Does not change speed of frequency, but the wave can flip upside down. The behavior of electromagnetic waves such as light changes when it is effected by transparent, translucent, or opaque objects. The light will pass through the object if it is a transparent object. If the light hits a translucent object the light will scatter. If the light hits a opaque object the light will either be reflected or absorbed. A opaque object will not allow any light to pass through. The End. Bibliography Wysession, Michael. Frank, David. Yancopoulos, Sophia. Physical Science. new Jersey. 2004 Kuykendall, keith. Waves in a Nutshell. journalinformationalmedicine.org moodle.southwell.school.nz cs.columbia.edu wiki.gamedev.net faculty.gvsu.edu gilmore2.chem.northwestern.edu physicsclub.net
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