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Energy Vocabulary
Term | Definition |
---|---|
Potential Energy | Energy that is stored. |
Kinetic Energy | Energy of motion. |
Chemical Energy | Stored in chemical bonds holding the atoms of compounds together. Ex: Food, wood, batteries. |
Electrical Energy | Energy of moving electrons. Ex: Hydroelectric dam or power lines. |
Mechanical Energy | Involved with moving objects. Ex: When we move or work we use mechanical energy. |
Radiant/Light Energy | Energy created by vibrating particles that create electromagnetic waves. Ex: UV Rays, X-Rays, Radio Waves |
Thermal Energy | Energy of moving or vibrating molecules. Usually produces heat. Ex: Fire |
Nuclear Energy | Energy stored in the nuclei of atoms. Ex: Nuclear bombs, fusion, or fission |
Temperature | Measure of average kinetic energy of all the particles in a sample. Ex: A thermometer. |
Thermal Energy | The total amount of energy of the particles that make up a substance. Ex: Total amount of energy in an ocean. |
Thermal Equilibrium | The point at which two objects that touch reach the same energy. Ex: Transfer of heat between two cups of water. |
Heat Flow | Heat travels from an object of higher temperature to one of lower temperature. |
Conduction | Transfer of heat energy through direct contact. Ex: Touching a hot kettle. |
Convection | Transfer of heat energy by the movement of liquid or gas. |
Radiation | Transfer of heat energy through matter or space as Electromagnetic Waves |
Endothermic Reactions | Heat energy is absorbed. It feels as though it gets hotter. |
Exothermic Reactions | Heat energy is released. It feels as though it gets colder. |