4.1 making an electrical circuit Flashcards
what do you need to do to light a bulb?
pass an electrical current through it. Only possible if it’s a closed circuit
an electrical current consists of __ that is moving through __ materials
charge
conductive
you can use an __ to measure the current in a circuit
amemeter
the magnitude of the current is measured in __
abbreviated to the letter _
ampere
A
a closed electrical circuit is
a circuit without interaptions that electrical currents can flow through
A are metals conductors?
B is carbon a conductor?
A yes
B yes
what is a conductor?
a substance that electrical currents can flow through easily
what is an insulator?
a substance that does not allow electrical currents to pass
what is charge?
the quantity of electricity. An electrical current consists of charge that moves through components of a circuit
what is a switch?
a component of a circuit that can be used to open or close the circuit
what is a circuit?
A set of conducting components of wires, bulbs and so forth through which current can flow
what is an ammemeter
An instrument you can use to measure how much current is flowing through a circuit
what is current?
the amount of charge passing per second
