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Electricity

Unit 5-Electricity

TermDefinition
electrical charge basic property of all matter; occurs when electrons are transferred between materials
electroscope a device used to detect electric charge
static electricity the accumulation of excess electric charge on an object; charges at rest
conduction charging by direct contact
induction charging by indirect contact
friction charging by rubbing
electric field the region surrounding an electric charge
current flow of charges in a single direction
direct current current flows in only one direction through a wire
alternating current current changes direction in regular pattern
resistance the tendency for a material to oppose the flow of electrons
ohms unit used to measure resistance
amperes unit used to measure current
volts unit used to measure voltage
Ohm’s Law describes the relationship between voltage, current, and resistance in a circuit
conductor a material in which electrons are able to move easily
insulator a material in which electrons are not able to move easily
parallel circuit circuit in which current has multiple paths for current to flow through
series circuit circuit in which current has only one loop or path to flow through
Created by: vfenstermaker