electrical polarization occurs when
charge distribution in a neutral molecule
atomic nuclei of almost all elements consist of
protons and neutrons
objects can be charged by
induction, friction, touching
2 charges are separated by a certain distance. if the magnitude of each charge is doubled, the force on each charge is
quadrupled
when a charged cloud is passed overhead, the ground below is charged by
induction
2 charges separated by a distance of 1 meter exert a 2N force on each other. If the magnitude of each charge is doubled, the force on each charge is
8N
the common hydrogen atom consists of
one proton and one electron
2 charged particles held close to each other are released. As they move, the force on each particle increases. Therefor, the particles have
opposite signs
2 like charges
repel each other
protons and electrons
attract each other
in a good insulator, electrons are usually
tightly bound in place
the fundamental force underlying all chemical reactions is
electrical
coulomb's law says that the force between any 2 charges depends
directly on the size of charges and inversely on the square on the distance between the charges
the SI unit of charge is the
coulomb
electrical forces between charges are the strongest when the charges are
close together
the net charge of a neutral atom is
zero
the reason a charged balloon will stick to the wall is that
induced opposite charges in the wall are closer than other wall charges
a rubbed balloon will stick to a wall which demonstrates
polarization
when the distance between 2 charges is halved, the electrical force between the charges
quadruples
to be safe in the unlikely case of a lightning strike, it is best to be inside a building framed with
steel
a positive charge and a negative charge held near each other are released. as they move, the force on each particle
increases
a positive ion has
more protons than electrons
the charge of an electron is
negative
to say that electric charge is conserved means that no case has ever been found where
net charge has been created or destroyed
if you comb your hair and the comb become positively charged, your hair becomes
negatively charged
bring a charged object near a conductor and then momentarily touch the conductor. This demonstrates charge by
induction
particle A has 2x as much charge as particle B. compared to the force on particle A, the force on particle B is
the same