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POE Lesson 1.2
Project Lead the Way, Lesson 1.2 Key Terms
| Term | Definition |
|---|---|
| Alternative Energy | Any source of energy other than fossil fuels that is used for constructive purposes. |
| Ampere | The unit of electric current in the meter-kilogram-second system of units. Referred to as amp symbolized as A. |
| Biomass | Plant materials and animal waste used especially as a source of fuel. |
| Current | The net transfer of electric charge (electron movement along a path) per unit of time. |
| Electrical Energy | Energy caused by the movement of electrons. |
| Electricity | The flow of electrical power or charge. |
| Electromagnetic Induction | the production of electricity in conductors with the use of magnets. |
| Energy | A fundamental entity of nature that is transferred between parts of a system in the production of physical change within the system and usually regarded as the capacity for doing work. |
| Energy Conversion | Changing on form of energy to another |
| Environmental Protection Agency | An organization that works to develop and enforce regulations that implement environmental laws enacted by Congress. |
| Fossil Fuel | A natural fuel such as coal or gas, formed in the geological past from the remains of living organisms. |
| Generator | A dynamo or similar machine for converting mechanical energy into electricity. |
| Geothermal Energy | The use of heat from within the Earth or from the atmosphere near oceans. |
| Gravitational Energy | The state when objects are not yet in motion. |
| Induction | the production of an electric or magnetic state by the proximity (without contact)of an electrified or magnetized body. |
| Inexhaustible Energy | An energy source that will never run out. |
| Kinetic Energy | Energy which a body possesses by virtue of being in motion. |
| Nonrenewable Energy | A resource that cannot be replaced once used. |
| Ohm | the unit of electric resistance in the meter-kilogram-second system of units. Symbolized as Ω. |
| Ohm's Law | States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit. |
| Parallel Circuit | A closed electrical circuit in which the current is divided into two or more paths and then returns via a common path to complete the circuit. |
| Potential Energy | The energy that a piece of matter has because of its position or nature or because of the arrangement of parts. |
| Power Converter | Changes one form of power to another. |
| Power Grid | A system that links electricity produced in power stations to deliver it to where it is needed. |
| Renewable Energy | A resource that can be replaced when needed. |
| Resistance | The opposition that a device or material offers to the flow of direct current. |
| Work | A result of a force moving an object a certain distance. |
| Turbine | A machine for producing power in which a wheel or rotor is made to revolve by a fast-moving flow of water, steam, gas or air. |
| Power | The rate at which work is performed or energy is expended. |
| Rotor | The rotating member of an electrical machine |
| Series Circuit | A circuit in which all parts are connected end to end to provide a single path of current. |
| Volt | The unit of potential difference symbolized as V. |
| Voltage | The potential difference measured in volts. The amount of work to be done to move a charge from one point to another along an electric circuit. |
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