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8th Unit 6
Electricity and Magnetism Key Terms
Term | Definition |
---|---|
Alternating Current | the flow of electric charge periodically reverses direction |
Ampere | Unit that is a measurement of electric current |
Battery | A device that can generate an electric current by creating a potential difference between two poles. |
Bioelectricity | Electrical currents produced by living organisms |
Conductor | Any material that allows an electric current to flow |
Current | The flow of charged particles through a conductor |
Direct Current | Current that flows in one direction |
Electric Circuit | The pathway that electrical current flows through |
Electricity | The flow of charged particles through a conductor that has the ability to do work |
Electromagnet | A temporary magnet created by an electric current moving through a coiled wire. |
Ferrous Metals | Metals that can be attracted to a magnet |
Load | The power leaving an electrical component |
Magnetic Field | The region around a magnet where influence by the magnet is present |
Magnetism | A property of materials that respond to an applied magnetic field |
Ohms Law | Voltage / Resistance = Current or I = V/r |
Parallel Circuit | A circuit with more than one pathway for current flow |
Permanent magnet | Substances that have permanent magnetic qualities |
Resistor | A substance that resists the flow of electricity |
Series Circuit | A circuit with only one pathway for current |
Static Electricity | A difference in charge that builds between two objects that results in a discharge of energy |
Superconductor | a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. |
Switch | A device that interrupts an electrical current |
Temporary magnet | Substances that have temporary magnetic properties based on the influence of electricity or other magnets |
Volt | The unit of measurement that describes the potential difference in charge between two points. |