electricity+ magnetism

eletric current is the flow of

eletric charges/ electrons

explain the law of charges

like charges repel each other and unlike charges attract

static electricity

the build up of eletric charges on an object- one example is to rub a ballon on ur hair

3 ways that eletric charges can be transfered from on object to another

friction- electrons move onto eachother, conduction- transfered from contact, induction- when a eletrically charged objects come close they rearrange

The pressure at which the electricity is traveling down the wire is called

voltage

what causes voltage

It is caused by the difference in positive and negative charges between two points. The greater the difference betwen to positive and negative charges the greater the pressure

The number or amount of electrons flowing through a confuctor is called eletric current is measured in units called

currents

matter that electricity will flow through easiley is called an

conductor

matter that electricity will not flow through is called a

insulator

the opposition of the flow of eletric cuttent is called

resisitance measured in ohms

thicker and thinner wire

thicker- lower resistance, thinner- higher restistance

longer and shorter wire

longer the greater, shorter the lower

what happens when a part of a parrell circut

will work

series and parralel

series= singular, parrelel- plural or 2

what are the 3 elements that magnets can be made of

iron, nickel, cobalt

tiny regions that line up resulting in a magnetic force are called

domains

how is a electromagnet created? what are the different parts of them

created by currents in a wire around a core and can magnetize to other stuff

what causes earths magnetic field

the movement of eletric changes from inside of earths core.