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25 Cards in this Set
- Front
- Back
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Battery
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a device that generates electricity by means of chemical reactions
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Circuit
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an arrangement of electronic elements, including conductors, resistors, and the like, through which electric current moves
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Conductor
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A substance through which electricity will flow. Metals are conductors
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Current
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the flow of electricity in a conductor.
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Dry Cell
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A voltage-generating cell having an electrolyte in the form of moist paste
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Electric Charge
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a basic property of the tiny particles that make up matter. Electric charges can be positive or negative
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Electric Discharge
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To cause the release of stored energy or electric charge from (a battery, for example)
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Electric Field
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the area around electric charges where electric forces can act
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Electric Power
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product of applied potential difference and current in a direct-current circuit
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Electrolyte
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A chemical compound that ionizes when dissolved or molten to produce an electrically conductive medium
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Electromagnet
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a magnet in which an iron or steel core is magnetized by the electric current in the coil of insulated wire wound around it
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Generator
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A device that converts motion into electric energy
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Induced Charge
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To cause formation of a net electric charge on or in (a conductor, for example).
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Induced Current
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The amount of electric charge flowing past a specified circuit point per unit time
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Insulator
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A material that prevents the flow of electricity. Plastic, rubber, glass, and air are insulators
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Ion
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Atoms that carry an electric charge, either positive or negative. If an atom gains an electron it takes on a negative charge. If the atom loses an electron it takes on a positive charge
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Multimeter
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used to measure two or more electrical quantities in an electric circuit, as voltage, resistance, and current
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Voltage
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Electromotive force or potential difference, usually expressed in volts
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Resistance
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how much a material opposes, or resists, the flow of electric current
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Positive Charge
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The charge on an atom’s nucleus
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Negative Charge
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The charge on an electron
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Neutral
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An object with equal numbers of positive and negative charges
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Proton
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a positively charged subatomic particle
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Neutron
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A neutral charged subatomic particle. It does not contain a positive or negative charge
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Electron
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A tiny particle with negative charge that goes around the nucleus of an atom
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