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7 Electrical circuit

Electrical circuits keywords

Measures how much electricity is flowing around a circuit. ammeter
The unit for current. amp (A)
A source of electricity with a low ‘energy’. Cells push electrons round a circuit. cell
A complete loop that electricity flows around. circuit
Something in a circuit, like a bulb, switch or motor. component
A material that lets electricity flow through it. conductor
The flow of electricity around a circuit. electric current
A material that does not let electricity flow through it. insulator
Alternating current at 230 V provided to houses, shops etc. mains (electricity)
A source of electricity with a low energy (low voltage) used in the laboratory. power pack
Turns electricity on or off, by closing or opening a gap in a circuit. switch
A way of saying how much energy is transferred by electricity. voltage
The smallest part of an element. atom
The flow of electrons around a circuit. electric current
Tiny particle that flows around a circuit. electron
Thin piece of wire inside a light bulb that glows when electricity is flowing through it. filament
A scientific way of thinking about how things happen. model
A way of saying how difficult it is for electricity to flow through something. resistance
A component that makes it difficult for electricity to flow. resistor
A resistor that can be adjusted to change the amount of resistance it has. variable resistor
A way of saying how much energy is transferred by electricity. voltage
A circuit with two or more wires running next to each other. parallel circuit
A circuit where there is only one loop of wire. series circuit
The green and yellow wire in a cable or plug. earth wire
Part of a plug that holds the cable, and stops the wires being pulled out of the pins. cable grip
A piece of wire that melts if too much electricity flows through it. fuse
The brown wire in a cable or plug. live wire
The blue wire in a cable or plug. neutral wire
When electricity flows through the body. electric shock
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