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Science Ch.7 '14

Electronic stuff

TermDefinition
amperes The unit of electric current in the meter-kilogram-second system of units. Referred to as amp and symbolized as A.
circuit diagrams Diagrams using symbols to show the parts of an electric circuit.
current electricity The controlled flow of electrons through a conductor. This is a steady flow in one fixed direction.
electric circuit A complete, unbroken path through which electric charges can flow.
electric current Movement of electrons from one place to another.
electric load Any device that transforms electrical energy into other forms of energy, such as a light bulb, buzzer, heater, and motor.
electric potential energy The stored energy a charge has based on it's location in an electric field; work is done whenever an object moves with/against the field.
electrical resistance The opposition posed by a material or a device to the flow of current.
electrochemical cells Electrodes in electrolytes that convert chemical energy into electrical energy stored in charges; also called batteries.
electrodes A metal strip that conducts electricity.
electrolyte A substance that is dissolved in solution and some of its molecules split or dissociate into electrically charged atoms or ions.
energy Ability to work.
ohm According to this law the voltage in a circuit equals the product of the current and the resistance.
Ohm’s law States that the direct current flowing in an electric circuit is directly proportional to the voltage applied to the circuit.
potential difference The difference in electrical charge between two points in a circuit expressed in volts.
resistance A material's opposition to the flow of electric current.
resistor An electrical device that resists the flow of electrical current.
volt A unit to measure potential difference.
voltage Another name for potential difference.
Created by: mddai
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