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Electricity

Electricity Vocab

TermDefinition
electric force The attraction or repulsion between electric charges.
electric field The region around a charged object where the object's electric force interacts with other charged objects.
static electricity A buildup of charges on an object.
Conservation of Charge The law that states that charges are neither created nor destroyed but only transferred from one material to another.
electric current The continuous flow of electric charges through a material.
conductor A material through which charges can easily flow, such as copper or silver.
insulator A material through which charges cannot easily flow, such as rubber or glass.
voltage The difference in electrical potential energy between two places in a circuit.
resistance The measurement of how difficult it is for charges to flow through a material.
battery A combination of two or more electrochemical cells in series.
Ohm's law The law that states that resistance is equal to voltage divided by current.
series circuit An electric circuit with a single path.
ammeter A device used to measure current in a circuit.
parallel circuit An electric circuit with multiple paths. Will allow lights to remain on if one bulb in circuit goes out.
voltmeter A device used to measure voltage, or electrical potential energy difference.
power The rate at which one form of energy is transformed into another; the unit of power is the watt.
Watt A measure of power equal to one joule of work per second.
resistor An electrical device that resists the flow of electrical current
fuse Electrical device that can interrupt the flow of electrical current when it is overloaded
electrostatic charage The study of electric charges that can be collected and held in one place.
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