Electricty

Question	Answer
What is electiricty and its units	the flow of electrons (joules)
what is a conductor	allows electrons to pass through eg metal
insulator	dont allow electrons to pass through eg non metals
Static electricity	is due to chare built up (friction) electrons are transferred from one substance to another
gain of electrons...	negative
loss of electrons	postitive
what is a circut	path in which electrons move from its source
what does the cell do	store chemical energy
series circut	connected one end to end and a simple loop for current to flow
parallel circuit	connected side to side and has multiple routes for current to flow
what is DC	current only flows one way
what is AC	current changes direction 50 times each second
what is voltage	push on electrons and the measure of difference in electrical energy
power =	current X voltage or energy/time
cost of electricty=	power X cost 1kw X time
uses of magnets	navigation motors separation

Resource summary

	Created by Thulashi Kandakumaran about 8 years ago