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The actual speed of an electromagnetic wave through a material medium is dependent upon the optical density of that medium. Different materials cause a different amount of delay due to the absorption and reemission process. Furthermore, different materials have their atoms more closely packed and thus the amount of distance between atoms is less. These two factors are dependent upon the nature of the material through which the electromagnetic wave is traveling. As a result, the speed of an electromagnetic wave is dependent upon the material through which it is traveling.

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The actual speed of an electromagnetic wave through a material medium is dependent upon the optical density of that medium. Different materials cause a different amount of delay due to the absorption and reemission process. Furthermore, different materials have their atoms more closely packed and thus the amount of distance between atoms is less. These two factors are dependent upon the nature of the material through which the electromagnetic wave is traveling. As a result, the speed of an electromagnetic wave is dependent upon the material through which it is traveling.

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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). The propagation of an electromagnetic wave through a material medium occurs at a net speed which is less than 3.00 x 108 m/s. 

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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). The propagation of an electromagnetic wave through a material medium occurs at a net speed which is less than 3.00 x 108 m/s. 

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https://padlet.com/salvalaemprezahh/wsaffi5vnsex

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Effects of Electromagnetic Radiation on Health

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This video describes some of the qualities and uses of different waves on the electromagnetic spectrum For more information on GCSE Physics visit https://revisionscience.com For more revision videos visit https://revisionvideos.com

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Infrared radiation is used by TV remotes to send a signal to the TV so the TV can execute a command. It is also used in security cameras because it is seen during the day and night.

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Microwave ovens use microwaves to heat up the food

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Radio waves are used to communicate. They are used by TVs and FM radios.

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There are different types of electromagnetic waves, all of these waves are the waves found in the electromagnetic spectrum, but one of the most common is the radio waves, radio waves are used in tv's, radios, phones and many devices which we use today.

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There are different types of electromagnetic waves, all of these waves are the waves found in the electromagnetic spectrum, but one of the most common is the radio waves, radio waves are used in tv's, radios, phones and many devices which we use today.

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Electromagnetic waves can also be distinguished by their wavelength. Wavelengths in the electromagnetic waves  can be found by dividing the speed of light by the wave's frequency.

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Electromagnetic waves can also be distinguished by their wavelength. Wavelengths in the electromagnetic waves  can be found by dividing the speed of light by the wave's frequency.

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Electromagnetic waves are really complicated, the electric component oscillates in one plane, while the magnetic component oscillates in a different plane.In a vacuum, electromagnetic  waves always travel at the same speed which is the speed of light, which is about 300 million meters per second.  

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Electromagnetic waves are really complicated, the electric component oscillates in one plane, while the magnetic component oscillates in a different plane.In a vacuum, electromagnetic  waves always travel at the same speed which is the speed of light, which is about 300 million meters per second.  

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Electromagnetic waves are named for the fact that they have both an electric and a magnetic component. They begin when charged particles, like electrons, vibrate due to the various forces acting on them. The vibration of charged particles results in an emission of energy known as electromagnetic radiation. 

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Electromagnetic waves are named for the fact that they have both an electric and a magnetic component. They begin when charged particles, like electrons, vibrate due to the various forces acting on them. The vibration of charged particles results in an emission of energy known as electromagnetic radiation. 

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As stated on the previous page, electromagnetic waves are waves which travel through the vacuum of outer space meaning they travel through air they are not in need of a solid or any other material to travel through.

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                    ELECTROMAGNETIC WAVES

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                    ELECTROMAGNETIC WAVES