Static Electricity

27 terms

Static charge

a staionary electrical charge that is built up on the surface of a material

How charge is transfered

rubbed on a person's hair, a plastic ruler can attract paper scraps

how charge is transfered

when the ruler is rubbed, it gains electrons from the hair and becomes negatively charged,

proton

is positively charged

neutral charge

negative charge

neutral

if # of electrons = # of protons

negative

if # of electrons is greater than number of protons

positive

if # of electrons is less than number of protons

relative rankings

those towards top of list are more likely to become postive while those towards bottom are more likely to become negative

electrons

are pulled from the wool to the balloon

electrons

balloon has more of these than usual

balloon

becomes negatively charged

wool

becomes positvely charged

static discharge

builds up by scuffing shoes on a carpet

balloon

has a negative charge when rubbed by a wool cloth

Don't

get back in your car when gassing up, sliding on seats can cause static electricity.

Don't

leave your car running while fueling, a running car is a source of sparks

Don't

smoke or use a lighter

Do

keep passengers in the car while fueling

do

touch metal part of the car away from the gas tank to discharge static before touching nozzle

negative charges

collect at the bottom of a cloud

negative charges

force the other negative charges in the ground down deeper, making the surface of the ground positive

positive charge

is pulled upward when a stream of negative charges from a cloud are a attracted by the positive ground,