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8 - Mod 1 Lesson 4

Electricity and Magnetism

QuestionAnswer
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
Created by: Ms. Greenup
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