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Energy Tom
Vocabulary and concepts on Energy
| Question | Answer |
|---|---|
| voltage | electromotive force or potential difference expressed in volts. |
| current | An electric current is a flow of electric charge through an electrical conductor. Electric charge flows when there is voltage present across a conductor |
| electricity | Pronunciation Key The collection of physical effects related to the force and motion of electrically charged particles, typically electrons, through or across matter and space. |
| energy | The capacity or power to do work |
| solar energy | enrgy from the sun |
| geothermal energy | Energy that comes from heat under the earth i.w. vocanoes or hotspots |
| thermal energy | heat energy |
| electromagnet | A device consisting of a coil of insulated wire wrapped around an iron core that becomes magnetized when an electric current flows through the wire. Electromagnets are used to convert electrical control signals into mechanical movements. |
| motor | A machine that uses energy, such as electric or chemical energy (as from burning a fuel), to produce mechanical motion. See also engine. |
| generator | A machine that converts mechanical energy into electricity to serve as a power source for other machines. |
| chemical energy | Energy liberated by a chemical reaction or absorbed in the formation of a chemical compound. |
| potential energy | The energy possessed by a body as a result of its position or condition rather than its motion. A raised weight, coiled spring, or charged battery has potential energy. Compare kinetic energy. |
| kinetic energy | The energy possessed by a system or object as a result of its motion. |
| renewable resources | resources thatcan be used again and again; it won't run out |
| nonrenewable resources | resources thattake a long time to develop new things |
| Mechanical energy | |
| Electromagnetic energy | light energy |
| Law of Conservation of Energy | energy can neither be created nor destroyed |
| nuclear energy | |
| mechanical energy | |
| origin of energy | the sun |
| energy transfer |
Created by:
tboever17
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