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Science Magnetism

eletricity and magnetism quiz - decemeber 1st

QuestionAnswer
explain how magnetic domains are important or something to be magnetic. it is important because all the group of atoms with their fields pointing in the same direction.
what does ferromagnetic mean? it means that an object is able to become magnetic.
list the 3 most common ferromagnetic elements: iron, nickel, and cobalt
why can we see the northern and southern lights? because the sun ejects a large number of charged particals at one. (solar wind and chemicals)
what are the nothern and southern lights called? southern-Aurora Australis northern-Aurora Borealis
what is the formula for voltage? V= I*R
what is the formula for amperage? I = V / R
what is the formula for resistance? R = I*V
what is voltage? is a measure of how muh electrical potential energy each electron can gain
what is resistance? is a measure of how difficult it is for eletrons to flow through a material
what is amperage? electric current of flow
why does an object become positively charged?
Created by: mollypainter
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