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Electromagnetic Spectrum

This is meaning electric / magnetic / spectrum. Radio waves are used to transmit radio and television signals. Radio waves can send sounds at the speed of light. The range of radio waves can be less than a centimeter to tens or even hundredths of meters. Radio waves are produced by coherent motion of electrons such as the antenna of a radio transmitter. Coherent motion is the focused pattern of the waves, in this case. The radio waves are also produced by charged particles orbiting in magnetic fields. "As you already know we have FM and AM radio waves. Well an FM radio station at 100 on the radio dial (100 megahertz) would have a wavelength of about 400 meters" . A radio wave can also be used to create images such as p!.
             ortable TVs. Radio waves with wavelengths of a few centimeters can be transmitted from a satellite or airplane antenna. The reflected waves can be used to form an image of the ground in complete darkness or through clouds. This would be how spy satellites work or how we take pictures of the planets surface. Following after radio waves would be the magnificent microwave. "The microwave makes up a very small part of the spectrum although it is widely used throughout households across the world" . Microwaves range from a few centimeters to 0.1 cm. The wave is used to heat your food. It heats your food by bouncing back and fourth across the microwave walls. In the process it causes molecules (tiny particles) to vibrate and create friction, which in turn creates heat. Infrared is the region of the electromagnetic spectrum that extends from the visible region to about one millimeter (in wavelength) Infrared waves include thermal radiation. For example hot or burning charcoal may not give off light but it does send out radiation, it's just felt as heat. The infrared radiation can be measured by using detectors. Infrared has many applications in medicine or finding heat leaks in houses.


Essays Related to Electromagnetic Spectrum

1. magnetic spectrum

Electromagnetic Spectrum An electromagnetic spectrum is the spectrum in which electromagnetic waves are sent out and in which they can be detected. The spectrum of electromagnetic waves includes the following waves: microwave, radar, satellite, UHF T.V., VHF T.V., FM radio, CB radio, amateur radio, and AM radio. ... The only form of wave that can be seen in the electromagnetic spectrum is ultraviolet light. ... In the electromagnetic spectrum there are certain energies our megahertz, giga hertz and just plain hertz. ... Here is a table on the different types of frequencies, what i...

  • Word Count: 290
  • Approx Pages: 1
  • Grade Level: High School

2. Solar radiation spectrum and colar of light

SOLAR RADIATION ELECTROMAGNETÃ"C SPECTRUM Light is the energy in the form of electromagnetic radiation. ... A region of the electromagnetic spectrum that is of higher energy and shorter wavelength than visible light. ... Infrared describes the part of the electromagnetic spectrum with wavelengths between 700nm and 1mm. ... the electromagnetic spectrum of importance in the Earth's atmosphere The solar radiation spectrum The electromagnetic radiation emitted by the sun shows a wide range of wavelengths. ... The visible light region occupies a very small portio...

  • Word Count: 1270
  • Approx Pages: 5
  • Grade Level: Undergraduate

3. Spectrum

Science Essay: Electromagnetic Spectrum There are many different types of electromagnetic waves in the electromagnetic spectrum. All of the waves are electromagnetic. The spectrum consists of these waves: Radio waves: They allow communication. ... Visible light: For seeing, this is the only visible electromagnetic wave. ... The dangers of electromagnetic waves and radiation omitted from them: Mobile phones give out microwaves, and test are being carried out to find out whether these waves cause any damage to the user, even though the waves in mobile phones are very weak and they ...

  • Word Count: 741
  • Approx Pages: 3
  • Grade Level: High School

4. Infrared Radiation

Humans only see a very small part of the entire electromagnetic spectrum. The electromagnetic spectrum includes gamma rays, X-rays, ultraviolet, visible, infrared, microwaves, and radio waves. ... Infrared radiation lies between the visible and microwave sections of the electromagnetic spectrum. ... Near infrared refers to the infrared spectrum part closest to visible light. ... Hershel directed sunlight through a glass prism to create a spectrum. ...

  • Word Count: 708
  • Approx Pages: 3
  • Grade Level: High School

5. Atomic Spectra

Knowing about the Bohr atom, isolated atoms can absorb and emit packets of electromagnetic radiation having discrete energies dictated by the detailed atomic structure of the atoms. ... The corresponding spectrum may exhibit a continuum, or may have superposed on the continuum bright lines, an emission spectrum, or dark lines, an absorption spectrum. ... A continuum spectrum results when the gas pressures are higher. ... An absorption spectrum occurs when light passes through a cold, dilute gas and atoms in the gas absorb at characteristic frequencies; since the re-emitted light is unlikely to...

  • Word Count: 447
  • Approx Pages: 2

6. Niels Bohr's model of the hydrogen atom

Niels Bohr's model of the hydrogen atom Niels Bohr's model of the hydrogen atom, was the primary reason for the understanding of energy levels.Bohr was able to explain the bright line spectrum of hydrogen. ... He used these ideas to explain the amount of energy collected in the bright-line spectrum. ... Bohr was able to prove the other spectral lines for hydrogen in the ultraviolet and infrared places of the electromagnetic spectrum. ...

  • Word Count: 368
  • Approx Pages: 1

7. hydrogen

Bohr was able to explain the bright line spectrum of hydrogen. ... He used these ideas to explain the amount of energy collected in the bright-line spectrum. ... Bohr was able to prove the other spectral lines for hydrogen in the ultraviolet and infrared places of the electromagnetic spectrum. ...

  • Word Count: 364
  • Approx Pages: 1
  • Grade Level: High School

8. Spectrophotometry

A study of the interaction of light (or other electromagnetic radiation) with matter is an important tool in quantitative analysis. ... The purpose of this experiment was to prepare an absorption spectrum of a starch-iodine solution by using the spectrophotometer. ... An absorption spectrum is the plot of a sample's absorbance of light at various wavelengths. ...

  • Word Count: 407
  • Approx Pages: 2
  • Grade Level: Undergraduate

9. Spectrophotometry

A study of the interaction of light (or other electromagnetic radiation) with matter is an important tool in quantitative analysis. ... The purpose of this experiment was to prepare an absorption spectrum of a starch-iodine solution by using the spectrophotometer. ... An absorption spectrum is the plot of a sample's absorbance of light at various wavelengths. ...

  • Word Count: 379
  • Approx Pages: 2
  • Grade Level: Undergraduate

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