Mill Creek Middle Electricity terms 8th grade Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| Like charges | Charges that will repel
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| Unlike charge | Charges that will attract
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| Electric Field | The area around charged particles that exerts a force on other charged particles
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| Protons | The positively charged particle of an atom
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| Electron | The negatively charged particle of an atom
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| Static electricity | The buildup of charges on an object which do not flow
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| Friction | The transfer of electrons from one object to another by rubbing
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| Conduction | The tranfer of electrons from one object to another by direct contact
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| Induction | The movement of electrons to one part of an object caused by the electric field of another object
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| Law of conservation of charge | Electrons are not created or destroyed they are only transferred from one location to another
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| Static cling | Static electricity that causes clothes to stick together and is what enables plastic wrap to cling
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| Static discharge | The loss of static electricity as electric charges move off an object
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| Lightning | a discharge of static electricity between clouds and the earth
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| Electroscope | A device used to detect static charge
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| Potential difference | The difference in electrical potential between two places which pushes charge through a circuit
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| Voltage | Another name for the potential difference, measured by a voltmeter
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| Volt | The unit of measure for the potential difference
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| Batteries and generators | Voltage sources
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| Resistance | The opposition to the movement of electric charges flowing through a material
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| Ammeter | An instrument used to measure current
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| Amps | The unit used to measure current
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| Ohm's Law | The resistance is equal to the voltage divided by the current
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| Series circuit | An electric circuit with a single path
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| Parallel circuit | An electric circuit with multiple paths
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| Short circuit | A connection that allows current to take an unintended path.
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| Alternating current | Current consisting of charges that move back and forth in a circuit
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| Conductor | A material through which electrons move freely, forming an electric current
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| Direct current | Current consisting of charges that flow in only one direction in a circuit
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| Electric circuit | A complete path through which electric charges can flow
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| Electric current | The flow of electric charges through a material
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| Electrolyte | A liquid or paste that conducts electricity
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| Grounded | Allowing charges to flow directly from the circuit to the ground connection
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| Insulator | A material through which the charges of an electric current are not able to move
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| Step-down/step-up transformers | Devices engineered to decrease or increase voltage
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| Terminal | The part of an electrode above the surface of the electrolyte
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| Third prong | Part of a plug which connects the metal shell of an appliance to the safety grounding wire of a building
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| wet cell | An electrochemical cell in which the electrolyte is a liquid
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| dry cell | An electrochemical cell in which the electrolyte is a paste
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| Van de Graaff generator | a device which produces static electricity using a rubberband like belt
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| Lightning rod | A metal rod mounted on the roof of a building in order to protect a building
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| Fuse/ circuit breaker | Devices added to a circuit to prevent overheating
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| Ohm | The unit of measure for resistance
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