What is Electromagnetic?
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In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space, carrying electromagnetic radiant energy. It includes radio waves, microwaves, infrared, (visible) light, ultraviolet, X-rays, and gamma rays.
Classically, electromagnetic radiation consists of electromagnetic waves, which are synchronized oscillations of electric and magnetic fields. In a vacuum, electromagnetic waves travel at the speed of light, commonly denoted c. In homogeneous, isotropic media, the oscillations of the two fields are perpendicular to each other and perpendicular to the direction of energy and wave propagation, forming a transverse wave. The wavefront of electromagnetic waves emitted from a point source (such as a light bulb) is a sphere. The position of an electromagnetic wave within the electromagnetic spectrum can be characterized by either its frequency of oscillation or its wavelength. Electromagnetic waves of different frequency are called by different names since they have different sources and effects on matter. In order of increasing frequency and decreasing wavelength these are: radio waves, microwaves, infrared radiation, visible light, ultraviolet radiation, X-rays and gamma rays.
Electromagnetic radiation is energy that is propagated through free space or through a material medium in the form of electromagnetic waves, such as radio waves, visible light, and gamma rays. The term also refers to the emission and transmission of such radiant energy.
Electromagnetic radiation is made when an atom absorbs energy. The absorbed energy causes one or more electrons to change their locale within the atom. When the electron returns to its original position, an electromagnetic wave is produced.
Nearly all frequencies and wavelengths of electromagnetic radiation can be used for spectroscopy. Radio waves, infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays are all types of electromagnetic radiation.
Electromagnetic waves are waves that contain an electric field and a magnetic field and carry energy. They travel at the speed of light. ... Some types of electromagnetic radiation, such as X-rays, are ionizing radiation and can be harmful to your body.
Synonyms. nonparticulate radiation microwave roentgen ray blackbody radiation X-ray actinic radiation X ray ray electron beam gamma ray radiation X-radiation electromagnetic radiation radio emission line black-body radiation radio radiation Hertzian wave photon actinic ray radio wave beam gamma radiation.
What are examples of electromagnetic radiation?
They include:
Radio Waves.
TV waves.
Radar waves.
Heat (infrared radiation)
Light.
Ultraviolet Light (This is what causes Sunburns)
X-rays (Just like the kind you get at the doctor's office)
Short waves.
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