ElectromagneticSpectrum
 

    *This web page should expand your knowledge in aspects relating to the electromagnetic spectrum, and help to further your knowledge about the partly invisible world around us. You should beable to have a full understanding in and about all major seven spectrums. After reading this web site you should be able to calculate the velocity of any given wave.

                  REAL LIFE APPLICATIONS
        Do you ever wonder how the radio works? How is it possible that one is able to watch series of images on a screen? What makes it possible for a microwave to heat up your food, how is it possible that doctors are able to take exrays, or that some one is able to get a tan by laying in the sun?Do you ever wonder why we see different colors, in different values at different times or why some lights are more intense and cause more heat than others?How does a microwave work? Are you curiouseof how firemen identify forrest fires so quickly?  If you have wondered abou any of these, then the electromagnetic spectrum is the key to  your answer.

            A Close Look At The Spectrum

             The electromagnetic (EM) spectrum is  a name  given to  a bunch of types of radiation. The elecctromagnetic spectrum is comprised of different types of light, all of which are realated because they move at 186,000 miles per second. Different wave lengths, adn frequencies are what seperates one type of light from the other. Wavelengths which are the measurment from one cres of a wave to the next, range from smaller than .0000000000001meters to larger than 10000 meters long. The wavelength relates directly to the ammount of energy carried by the wave, The smaller the wave length, the higher the ammount of energy. Frequency, the second thing which seperates different types of light from one annother can be defined as the number of waves that pass by any given point per second. The frequency of a wave can range from larger to 100000000000000000000 waves per second to smaller than 1000000 waves per second.
    The electromagnetis Spectrum contains eight major categories of light. Radio, Micro, infrared, visible, ultraviolet, soft x rays, and gamma rays all range from the strongest and most dangerouse gamma rays to the largest and smallest frequency radiowaves. The following chart can is used as a visual to help to further your understanding of the topic.
 

    First on the electromagnetic spectrum is theGamma ray. These rays have wavelenghts of less than a ten of a trillionth of a meter, adn frequencys of over 1times 10 to the 20th. Gamma rays are the most strong and powerful rays known to man, and are even more penetrating than X rays. Gamma rays are generated in nuclear explosions, and by radio active explosions, they are also used in many medical applications. This type of ray has allowed man kind  to photograph space, and to record things such as the life and death of stars.
    X rays are the second strongest forms of light in the electromagnetic spectrum. Their wavelenghts range from about ten billionths of a meter to about ten trillionths of a meter. They have extensive penetrating abilities, and are used frequently in the medical field. X rays allow us to see inside the internal stuctures of all types of things, and make us capable of photographing the sun. Through doing the former, scientists are able to study how the sun affects the weather on earth.
   Ultra Violet radiationhas wave lengths ranging from 400 billionths of a meter to approximately 10 billionths of a meter.Sunlight contains ultra violet rays, which in small ammounts are essential to human life. However, to much of the ulta violet rays comming from the sun, or in a too intense ammount can cause skin cancer. Ultra violet rays are also used often in astronomical observitories.
    Visible light is the light that we can see. The different wavelengths contained in the spectrum create the rainbow of colors that we see.These wavelengths range from 400 to 700 billionths of a meter.The smallest and most powerful waves of this spectrum creata a purple color, then there is blue, green, yellow, orange all the way to red, which contains the largest wave lengths and least strength. Visible light "coincides" with the strongest waves of sunlight and is an essential factor in differentiating things by color.
\    Infrared waves, ranging in wavelength to one millimeter, or the size of a typical plant cell, from the visible light spectrum, also includes thermal radiation. If you were to burn wood, as well as giving off light it would emit infrared radiation, which is then felt as heat. Infrared radiation can be measured using electronic detectors which can help  us to identify forrest fires quickly.
    Microwaveshave wavelengths ranging from about the size of a pencil lead all the way to the size of a ruler. This form of light is used to heat food ina microwave. This proccess works through the generated radio waves or electricty being tuned into frequencys( microwaves) that can heat the food. The food absorbs the energy (light) an dthen becomes warmer. MIcrowaves can also be helpful in allowing us to take the temperature of objects.
    Radio wave sranging from a cm to thousands of meters are used to transmit television and radio signals. Fm radio waves are shorter, adn have more strength then am radio waves. Radio waves are also used to create images such as on telivision or the movies. Radio waves can also be used to capture an image such as in photographs.

 How to calculate the Velocity of any specific wave

V=Fl

   V-Velocity(always3^10*8) measured in units per second squared
  F-frequency measured in hertz
  l-wavelength
 

Examples
 Ex1.)A microwave with a wave length of 10^-3 is used to heat up a peice of chicken, what is the frequency used in this specific wave?
      Answer:
                     A.)write formula -V=Fl,
                     B.)Fill in known information:3*10^8=F10^-3,
                     C.)Divide left side by right and solve from the variable :3*10^11li s the wave length

Ex2.)For us to see the specific color of a teangeriny crayola crayon, 10^13 waves must pass by any given point in one second,  what is the wavelenght?
Answer:
                     A.)write formula-V=Fl,
                    B.)fill in known in formation:3*10^8 units/sec^2=10^13l
                 C.)Divide left side by right and solve from the variable: l=10^-5l

Ex3.)A base ball is thrown has a frequency of 10^3hertz,given that the velocity is 3*10^8,2 what is the wavelength?
Answer:
                 A.)writeformula-V=Fl,
                 B.)fill in known information:3*10^8 units/sec^2=10^3f
               C.)Divide leftside by right and solve from the variable :wavelength must be3*10^5 hertz
 
 

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