UNIT 6
Text One
«Forms of Energy»
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electromagnetic light waves radio waves television waves infrared radiation X rays ultraviolet radiation radiation |
There are many forms of energy. Energy that is transmitted in the form of radiation, particularly electromagnetic radiation, is known as radiant energy. Radiant energy is found in space unaccompanied by matter, i.e. without matter. This fact makes it unique among other forms of energy. |
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Radiant energy is the only form in which energy can exist in the absence of matter. All other known forms of energy are found to exist in the presence of matter. |
Exercise: True or false?
1. All forms of energy are found to exist in the absence of matter.
2. Matter can exist in the absence of energy.
3. Radiant energy is transmitted in the form of electromagnetic radiation.
4. Radiant energy is composed of atoms.