science test feburey Flashcards
what makes an insulator an insulator
they do not give up electrons in the outer orbit
batteries are
chemical energy
when an circut is switched on is it open or closed
closed
why doesnt pure water conduct electricity
because it doesnt have impurities and Ions
whats strange about H20
when frozen in moves slower and farther apart
whats strange about Co2
it skips the liquid phase
whats a circut
a closed path where electrons flow freeley
what is voltage
the electric force
when one or more electrons is stripped away from an atom it becomes
postive
how do sharks use elctectricity
they have brain boogies that produce elctrical signals which are sent to the brain aleting the shark if there is a heart beat near
what are alternative sources of energy
geo thermal, solor and wind energy
what is current measured in
amps
whats a magnetic domain
a region withen a magentic matriel in which the magnetizantion in a uniform difrection
energy conversation with fan
chemicl becomes mechincal energy
distilled water and conductivity
water needs ions and minreals to conduct
voltage vs curre nt
voltage creates the current and current is the flow of electrons
static vs current
static is the reaction between negitve and postive, staic goes to one place and current moves but ends up at the same placde
who ivneted light bulb
no one
what did ben discorve
the connection between electrcity and lighting
when are atoms neutral
when there is equal amout of electrons and protons
conducter vs inslateors
conduct give up and inslater keep in shell
how balloon staick the da whall
balloon vharge is negitive and wall is postive that steal negitve charge
why do electrons stay in orbut
becayse lelectrond ans protns attract eachother
what is energy
the abilty to do work
what is motion
change in posion
what is matter
anything that takes up space and can be weighed
we live cus ythe sea….
LIVES
where does out osegyn come from
70 come ofrom the sea (plankton) ad 30 come from tree frm le rain forest
what cuase ttides
.the gravtitonal force of the moon
what the answer to zimms question
force
four parts of a circut
loud switch, cunducters, source
