science ch.7 gr:9
a eletron is:
negative
a proton is
positive
when the # of protons are equal to the # of eletrons the atom is
neutral
if eletrons are removed from a neutral object the object will become ______ charged
positive
if eletrons are added from a neutral object the object will become ______ charged
negatively charged
static eletricity is
the temporary transfer of eletrons
eletric discharge is
the removal of eletric charge from an object
the coulmb is
the unit of eletric charge
laws of eletric charges
like charges repel,unlike charges attract,neutral objects are attracted to charged objects
eletrons does
all the movement
you cant or can gain or lose protons
cant
static charge is
when nothing moves and get stuck together
inserlator
postives or negatives cant leave
conductor
postives or negatives can leave
ven de graff generator
uses friction to produce a large static charge
eletroscope is to
detect a static charge
the eletrons are ______ to the rod and moved up to the metal ball
attracted
charging by induction the é is
temporary relocated
charging by induction: the object is brought close or far
close to, but not touching
charging by conduction the object _____ with the eletroscope
makes contact
when will the leaves of the eletroscope seperate when charged by induction
when a negative object is near the knob (top) of the eletroscope
what is not a example of technologies and static eletricity
machanical watch