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Thermal energy - Wikipedia

en.wikipedia.org/wiki/Thermal_energy

In thermodynamics, thermal energy refers to the internal energy present in a system due to its temperature. The concept is not well-defined or broadly accepted ...

Heat Energy - Definition and Examples - Physics - About.com

physics.about.com/od/glossary/g/heat.htm

Jul 28, 2016 ... This is the definition of heat or thermal energy, particularly as the term applies to physics. Examples of heat energy are provided.

Heat energy | Sciencelearn Hub

sciencelearn.org.nz/Contexts/Fire/Science-Ideas-and-Concepts/Heat-energy

Nov 20, 2009 ... Heat is needed to keep a fire going. It involves the flow of energy between matter in three ways – convection, conduction and radiation.

What is Heat? How is it created? - Cool Cosmos

coolcosmos.ipac.caltech.edu/cosmic_classroom/light_lessons/thermal/heat.html

The motion of atoms and molecules creates a form of energy called heat or thermal energy which is present in all matter. Even in the coldest voids of space,  ...

Heat Energy

www.powermasters.com/heat_energy.html

The heat energy of a substance is determined by how active its atoms and molecules are. A hot object is one whose atoms and molecules are excited and show ...

www.ask.com/youtube?q=Heat Energy&v=xGKg3TSO4v8
Jul 21, 2015 ... Heat is a form of energy that always travels from a hotter substance to a colder substance. Temperature is a measure of the energy that matter ...

Heat energy definition - Nuclear Energy

nuclear-energy.net/definitions/heat-energy.html

Heat energy is the manifestation of the energy in the form of heat. It can be transmitted by radiation, conduction and convection. The energy is usually mesured ...

Thermal Energy Facts - SoftSchools

www.softschools.com/facts/energy/thermal_energy_facts/402/

Thermal energy is the energy that comes from heat. This heat is generated by the movement of tiny particles within an object. The faster these particles move, the ...

What is Heat? - The Physics Classroom

www.physicsclassroom.com/class/thermalP/Lesson-1/What-is-Heat

in the form of heat. Just as in the case of the cooling coffee mug, energy is being transferred from the higher temperature objects to the lower temperature object.

Heat energy - definition of heat energy by The Free Dictionary

www.thefreedictionary.com/heat energy

Noun, 1. heat energy - a form of energy that is transferred by a difference in temperature. heat · energy, free energy - (physics) a thermodynamic quantity ...

Answer
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.
More Info

What is heat or thermal energy? - eSchooltoday

www.eschooltoday.com

Heat (Thermal energy). Matter is made up of particles or molecules. These molecules move (or vibrate) constantly. A rise in the temperature of matter makes the ...

heat energy - Dictionary Definition : Vocabulary.com

www.vocabulary.com

a form of energy that is transferred by a difference in temperature.

Heat - BrainPOP

www.brainpop.com

In this educational animated movie about Science learn about temperature, energy, melting, Celsius, Fahrenheit, Kelvin, and thermodynamics.