Electricity Vocabulary

33 terms by meganrice

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ammeter

a device used to measure current

charge

an electrical property of particles that causes them to attract and repel each other

voltmeter

a device used to measure voltage, or electrical potential energy difference

electrically neutral

an object that has equal amounts of protons and electrons

direct current

electricity that flows in one direction steadily

switch

a device that opens or closes a circuit

multimeter

an instrument for measuring the properties of an electrical circuit

ampere

unit used to measure electric current

conduction

charging by contact

alternating current

a flow of electric charge that regularly reverses its direction (60 times per second)

open circuit

an incomplete electrical circuit through which no current flows

closed circuit

a complete path through which electric current flows

insulator

material through which electrons do not flow

conductor

material through which electrons flow freely

circuit

a complete pathway for electrons to flow

current

flows in the opposite direction as moving electrons

proton

positively charged particle within the nucleus of the atom

neutron

neutral particle within the nucleus of the atom

electron

negatively charged particle within the atom, but not in the nucleus

attraction

force that acts between unlike charges

repulsion

force that acts between like charges

friction

a method of charging objects by rubbing two objects together

conduction

method of charging; objects touch, allowing electrons to flow between them

induction

method of charging; electric charges are rearranged, no contact is necessary

static electricity

the build up of electric charge

electric/static discharge

the release of electric charge

electroscope

an instrument that detects electric charge

volts

the measurement of the difference in charges between the terminals of a battery; the power in a battery

parallel circuit

a circuit that has multiple pathways through which electrons can flow

series circuit

a circuit that has only one pathway through which electrons can flow

battery

a device that produces electricity by converting chemical energy to electrical energy

resistance

opposition to the flow of electrons; slows down the electrons in a circuit

ohm

unit of resistance

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