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Waves are created by a disturbance in a medium. For example, Suppose that a slinky is stretched out in a horizontal direction across the classroom and that a pulse is introduced into the slinky on the left end by vibrating the first coil left and right. Energy will begin to be transported through the slinky from left to right. As the energy is transported from left to right, the individual coils of the medium will be displaced leftwards and rightwards.

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Radio waves are used for mobile radio communications, broadcasting, communications satellite, radar, navigating devices, computer networks, and more. wireless network connections such as a USB use infrared rays to transmit information. hospitals use Ultraviolet rays to sterilize surgical equipment as we'll as food and drug companies to sterilize their products. Ultraviolet rays are also used by doctors to treat vitamin D deficiency and some skin disorders. X-rays ate commonly used by doctors to perform X-rays, which check for broken bones and certain diseases. Gamma rays have the smallest wavelength, therefore having the most energy. this energy is so powerful that it can kill organisms, which is exactly what doctors use them for; to kill cancerous cells.

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Wave energy can be produced when electricity generators are placed on the surface of the ocean. The energy generated from this is most often used in desalination plants, power plants, and water pumps. from here it can be used as electrical energy to power your homes or as heat and light energy to power the stove and light switches.

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Physics - Waves -  Introduction - Definitions, Logintudinal and Transverse.

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Amplitude is the height of the wave, measured in meters. Wavelength is the distance between adjacent crests, measured in meters. Period is the time it takes for one complete wave to pass a given point, measured in seconds. Frequency is the number of complete waves that pass a point in one second, measured in inverse seconds, or Hertz (Hz). Speed is the horizontal speed of a point on a wave as it propagates, measured in meters / second.

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Radio waves
Microwaves
Infrared rays
Ultraviolet rays
X-Rays
Gamma rays

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An electromagnetic wave is a disturbance that involves the transfer of electric and magnetic energy. Electromagnetic waves are created by the vibration of an electric charge. This vibration creates a wave which has both an electric and a magnetic component. An electromagnetic wave transports its energy through a vacuum at a speed of 3.00 x 108 m/s (a speed value commonly represented by the symbol c).

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Transverse Waves:   Longitudinal Waves:   Surface Waves:
Light waves                  Infrasonic waves            Love waves
Sound waved               Seismic P waves             Rayleigh waves
Water waves                Ultrasound waves          Seismic S waves

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A mechanical wave is a wave that is an oscillation of matter, and therefore transfers energy through a medium. Mechanical waves transport energy. This energy propagates in the same direction as the wave. Mechanical waves can be produced only in media which possess elasticity and inertia.

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A surface wave is a wave in which particles of the medium undergo a circular motion. Surface waves are neither longitudinal nor transverse.

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A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.

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A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves.

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A wave is an oscillation accompanied by a transfer of energy that travels through medium (space or mass).

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By: Andrea Godoy                         Period 4

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By: Andrea Godoy                         Period 4