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Electricity Terms

Mill Creek Middle Electricity terms 8th grade Science

Like charges Charges that will repel
Unlike charge Charges that will attract
Electric Field The area around charged particles that exerts a force on other charged particles
Protons The positively charged particle of an atom
Electron The negatively charged particle of an atom
Static electricity The buildup of charges on an object which do not flow
Friction The transfer of electrons from one object to another by rubbing
Conduction The tranfer of electrons from one object to another by direct contact
Induction The movement of electrons to one part of an object caused by the electric field of another object
Law of conservation of charge Electrons are not created or destroyed they are only transferred from one location to another
Static cling Static electricity that causes clothes to stick together and is what enables plastic wrap to cling
Static discharge The loss of static electricity as electric charges move off an object
Lightning a discharge of static electricity between clouds and the earth
Electroscope A device used to detect static charge
Potential difference The difference in electrical potential between two places which pushes charge through a circuit
Voltage Another name for the potential difference, measured by a voltmeter
Volt The unit of measure for the potential difference
Batteries and generators Voltage sources
Resistance The opposition to the movement of electric charges flowing through a material
Ammeter An instrument used to measure current
Amps The unit used to measure current
Ohm's Law The resistance is equal to the voltage divided by the current
Series circuit An electric circuit with a single path
Parallel circuit An electric circuit with multiple paths
Short circuit A connection that allows current to take an unintended path.
Alternating current Current consisting of charges that move back and forth in a circuit
Conductor A material through which electrons move freely, forming an electric current
Direct current Current consisting of charges that flow in only one direction in a circuit
Electric circuit A complete path through which electric charges can flow
Electric current The flow of electric charges through a material
Electrolyte A liquid or paste that conducts electricity
Grounded Allowing charges to flow directly from the circuit to the ground connection
Insulator A material through which the charges of an electric current are not able to move
Step-down/step-up transformers Devices engineered to decrease or increase voltage
Terminal The part of an electrode above the surface of the electrolyte
Third prong Part of a plug which connects the metal shell of an appliance to the safety grounding wire of a building
wet cell An electrochemical cell in which the electrolyte is a liquid
dry cell An electrochemical cell in which the electrolyte is a paste
Van de Graaff generator a device which produces static electricity using a rubberband like belt
Lightning rod A metal rod mounted on the roof of a building in order to protect a building
Fuse/ circuit breaker Devices added to a circuit to prevent overheating
Ohm The unit of measure for resistance
Created by: bwier