Thermal energy is the energy that a system or object possesses due to the random movement of its particles. When more particles are present, there is more movement, which results in more thermal energy. More »

www.reference.com Science Physics Thermodynamics

Solar energy has been used by humans for 2,700 years. Originally, glass lenses were used to make fire with the sun's rays. According to the U.S. Energy Information Administration, the first recorded use of a solar therma... More »

www.reference.com Science Physics Thermodynamics

One fact for kids about solar energy is that it is energy harvested from the sun. When the sun's rays, also known as solar radiation, reach the Earth, the energy is converted using appropriate technology into heat and el... More »

www.reference.com Science Physics Electricity

Thermal energy is made by the movement of particles within an object or system. The thermal energy of an object, and thus the temperature of an object, increases as its molecules move more quickly. More »

www.reference.com Science Physics Thermodynamics

Thermal energy is the movement of particles within matter and is found in the sun, magma, heated water and even the human body. Heat represents the transfer of thermal energy between matter. More »

The transfer of heat from an object's surroundings increases the energy of the particles that make up the object. Raising the kinetic energy of a particle increases its movement. More »

Heat conduction is the transfer of internal energy (microscopic kinetic and potential energy) from a region of higher temperature to one of lower temperature by the interaction of particles like atoms, molecules, ions or... More »