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Physics II Electric Forces and Fields with 100- correct answers.
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Physics II Electric Forces and Fields with 100- correct answers.
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Physics II Electric Forces andFields with 100% correct
answers
fossil fuel called amber would ______ small objects
after being rubbed with wool.
attract
when any two nonconducting substances are
rubbed together, what happens?
static charge
when any two nonconducting substances are
rubbed together, static electricity occurs. The
substance that picks up the electrons get a ____
charge
negative
when any two nonconducting substances are
rubbed together, static electricity occurs. The
substance that loses electrons gets a ______ charge
positive
On a dry day when you rub a balloon in your hair,
the balloon becomes negatively charged and will
conventionally stick to the neutrally charged wall.
What will happen to the walls charge?
it will become polarized. the balloon, with a
negative charge will attract the positive charges
from the neutral wall and repel the negative
charges that are within the wall. (-+ -)
,there are two kinds of charges. what are they?
positive and negative
excess electric charge on glass rod is called
positive
excess electric charge on the rubber rod is called
negative
like charges ____ one another
repel
unlike charges ______ one another
attract
protons have what charge
positive charges
where are protons and neutrons located?
in the nucleus
where are electrons found?
in the electron cloud around the nucleus
electrons have what kind of charge
negative charge
neutrons have what kind of charge
neutral charge
an electron and a proton has the same ________ of
charge but the opposite
magnitude; sign
, do protons move?
they never move from one material to another
electrons are far lighter than protons and are
_______ easily accelerated by forces
more
how do objects become charged?
gaining or losing electrons
charge transfers readily from one type of material
to another. Rubbing the two materials together
serves to _________ the area of contact, facilitating
the transfer process
increase
electric charges are always _______
conserved
Charge isnt created when two neutral objects are
rubbed together; rather, the objects become
charged because
negative charge is transferred from one object to
the other.
(one object gains a negative charge while the other
loses an equal amount of negative charge and
hence is left with a net positive charge.)
When a glass rod is rubbed with silk electrons are
transferred from the ______ to the _____; therefore,
the glass rod carried a net positive charge and the
silk a net negative charge
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