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System
An object or group of objects that have energy.
Energy
The ability to do work, measured in joules (J).
Work
The process that occurs when energy is transferred from one store to another.
Conservation of Energy
Energy cannot be created or destroyed; it can only be stored, transferred, or dissipated.
Energy Stores
Different forms in which energy can be stored, including chemical, kinetic, thermal, gravitational potential, nuclear, elastic potential, magnetic, and electrostatic.
Energy Transfer Pathways
The methods through which energy changes store, including heating, mechanical work, electrical work, and radiation.
Heating
Energy transfer due to temperature differences, caused electrically or by chemical reactions.
Mechanical Work
The transfer of energy through a force moving an object over a distance.
Electrical Work
The transfer of energy through the movement of charges due to a potential difference.
Radiation
Energy transferred as a wave, such as light.
