Preview

Electromagnetic Waves

Good Essays
Open Document
Open Document
954 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Electromagnetic Waves
Miyuki Murakami 10D
SHOULD WE USE ELECTROMAGNETIC WAVES FOR MEDICAL PURPOSES?
In terms of definition, Electromagnetic Wave is a “non-particulate radiation (radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge)”. Thus, in simpler words, electromagnetic is a transmission of energy, caused by the oscillation and of electric and magnetic fields.
The word electromagnetic wave or electromagnetic radiation may sound complex. However, without even noticing, electromagnetic waves have been subconsciously surrounds our everyday lives. It could be found in microwaves, TV, telephone, wireless signals or energy.
Undoubtedly, there are two forms that waves could be transmitted; electromagnetic waves and mechanical waves, both waves transfers energy. On the other hand, a mechanical wave requires a medium in order to transmit energy; in contrast, electromagnetic wave does not. In addition, mechanical waves can be transverse and/or longitudinal, while electromagnetic waves are always transverse.
Furthermore, electromagnetic waves could be specified into several types, which in other words is called the ‘Electromagnetic Spectrum’. Hence, those waves are scaled within a range from the lowest frequency with a long wavelength to the highest frequency with a short wavelength. In a chronologic order, those waves are: radio waves, microwaves, infrared, visible light, ultra violet, x-rays and lastly, gamma rays.
Pursuing this further, radio waves; the one with the lowest frequency but the longest wavelength, is mainly used for communication. It could transmit signals to your radio, mobile phones and televisions. Nevertheless, radio waves are also divided into several types, which are: long wave, medium wave, VHF (Very High Frequency) and UHF (Ultra High Frequency). Secondly, microwaves are basically a form of radio wave but with an extremely high frequency. Microwaves could also be found in our

You May Also Find These Documents Helpful

  • Better Essays

    Nt1310 Unit 7 Exercise 1

    • 580 Words
    • 3 Pages

    Electromagnetic waves- a wave produced by the acceleration of an electric charge and propagated by the periodic variation of intensities of, usually, perpendicular electric and magnetic fields.…

    • 580 Words
    • 3 Pages
    Better Essays
  • Better Essays

    * identify that mechanical waves require a medium for propagation while electromagnetic waves do not…

    • 2474 Words
    • 10 Pages
    Better Essays
  • Good Essays

    A wave is disturbance or oscillation that travels through matter/space, accompanied by a transfer of energy.…

    • 582 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    There are electromagnetic waves and they are made up of marginal frequency radio waves and they are helped by infrared energy and looked at ultraviolet x-rays to luminosity and gamma rays that are high in frequency. If they are beside each other most of these waves do create an electromagnet spectrum. When we look at electromagnetic waves they may be identified by how often that they occur and how the more substantial the waves occur the more that they are limited (Tools,…

    • 1288 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    These are all types of radiation which can effect us, as it damages our skin (tissues), because we are exposed to it too much everyday. Another type of radiation that can effect us the most is ultraviolet (UV). This is emitted from the sun which causes skin cancers to us, if we stay in the sun for long.…

    • 408 Words
    • 2 Pages
    Good Essays
  • Better Essays

    X rays and Ultrasound are two of the main imaging techniques used in radiography. For the purposes of this essay, we will look at conventional x-rays and diagnostic ultrasound. Conventional x rays are non-invasive diagnostic techniques that are used to capture images of the body's organs and bones. Diagnostic ultrasounds are high frequency sound waves to create an image of soft issues in the body such as muscles, joints, and internal organs. As examined below, while both are used in diagnostic radiography, they have extremely different modalities.…

    • 1217 Words
    • 5 Pages
    Better Essays
  • Powerful Essays

    A radio wave (radiating electric field) propagates out from the source, traveling at the speed of light. The source, for example an antenna, creates oscillating electric(E)/ magnetic(B) fields. These fields are perpendicular not only to each other but to the direction of the traveling wave, and travel away from the antenna. The electromagnetic wave is, therefore, a transverse wave. The electric/ magnetic fields store the energy of the wave. Basically, the oscillating current to the antennas sets the electrons in motion. These electrons, being accelerated, create discontinuity in the electromagnetic field.…

    • 1890 Words
    • 7 Pages
    Powerful Essays
  • Satisfactory Essays

    Electromagnetism

    • 402 Words
    • 2 Pages

    An electromagnetic wave generates both, electric and magnetic fields. A magnetic field can be induced by a wire conducting an electric current and a electric field can be induced in a coiled piece of copper wire if a magnet is moved through the center of the coiled wire.…

    • 402 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The radio waves used in radar help to decide the range, angle, or speed of objects. Radio waves have the longest wavelength, smallest frequency, and the least energy of all electromagnetic waves. These waves are a type of electromagnetic radiation, which additionally include microwaves, infrared radiation, x-rays, and gamma rays. Other important uses of radio waves are for television, cellphones, and…

    • 349 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Infrared Waves

    • 340 Words
    • 2 Pages

    * Infrared (IR) light is electromagnetic radiation with a wavelength longer than that of visible light…

    • 340 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Physics Waves

    • 993 Words
    • 4 Pages

    Another type of wave can travel through a vacuum, e.g. electromagnetic radiation (including visible light, ultraviolet radiation, infrared radiation, gamma rays, X-rays, and radio waves). This type of wave consists of periodic oscillations in electrical and magnetic fields.…

    • 993 Words
    • 4 Pages
    Good Essays
  • Powerful Essays

    Electromagnetic waves are composed of oscillating electric and magnetic fields at right angles to each other and both are perpendicular to the direction of propagation of the wave. Electromagnetic waves differ in wavelength.…

    • 2664 Words
    • 11 Pages
    Powerful Essays
  • Satisfactory Essays

    Radioactivity

    • 336 Words
    • 2 Pages

    * γ radiation is in the form of waves-kind of like light but higher frequency .…

    • 336 Words
    • 2 Pages
    Satisfactory Essays
  • Satisfactory Essays

    Underwater Communication is done with help of light and sound i.e., via, optical and Acoustic waves. This type of communications is known as optical and acoustic communications. Both acoustic and optical waves have their own advantages and disadvantages. To come unscathed from this emerged the use of electromagnetic waves which made the underwater wireless communication work with electromagnetic waves propagation.…

    • 341 Words
    • 2 Pages
    Satisfactory Essays
  • Powerful Essays

    1. The wave model can be used to explain how current technologies transfer information 1.1 - describe the energy transformations required in one of the following: • mobile telephone • fax/modem • radio and television • Mobile phones have a built-in microphone that changes sound waves into electrical signals. These signals are digitised, and transmitted as radio waves to a base station. This base station consists of a…

    • 3640 Words
    • 15 Pages
    Powerful Essays