# What Is Thermal Energy?

Thermal energy refers to part pf the total internal energy that is contained in the macroscopic region of the universe. It also refers to some piece of the matter which will result in the change of temperature of that matter.
Thermal energy is generated and measured by heat of any kind. It is caused by the increased activity or velocity of molecules in a substance, which in turn causes temperature to rise accordingly.
There are many natural sources of thermal energy on Earth, making it an important component of alternative energy.
Thermal energy is heat energy. Thermal Energy comes from the movement of atoms and molecules in matter, and is increased by heating and reduced by cooling.
Thermal energy is a form of energy that is created using heat. Thermal energy can be derived by moving objects together quickly to conduct heat.
Q&A Related to "What Is Thermal Energy"
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 Thermal energy is great, but installation costs can be fairly steep, and it's hard to use it for anything else than heating. http://wiki.answers.com/Q/How_is_thermal_energy_ba...
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