Transcript Electricity and Magnetism

Negative
charges in an
atom are called
___________.
electrons
What kind of
electricity can be
caused by rubbing
two materials
together?
When you rub a balloon
with a cloth, __________
negative
charges are knocked
off the cloth and are
collected onto the
balloon. This makes
the balloon have a
negative charge.
__________
What is a discharge
of static electricity
in the atmosphere
called?
Lightning occurs when
negative charges
the ___________
in the thundercloud
build up and jump to
positively charged
the ____________
ground.
What kind of
electricity is caused
by a continuous
flow of electrons?
What is the path
that electricity
flows through
called?
A circuit must
be _________
closed to
allow the flow
of electricity.
What can be
used to control
the flow of
electricity?
What do we call
materials that
allow the flow of
electricity?
What do we call
materials that do
not allow the flow
of electricity?
What is a poor
conductor called?
Resistors allow
electrical energy
to be ___________
changed
into other forms
of energy.
Name three types
of energy that
electricity can be
changed into.
Heat, light, and
mechanical energy
How many
pathways does a
series circuit
have?
How many
pathways does a
parallel circuit
have?
What kind of
circuit is it?
parallel
What kind of
circuit is it?
series
What is the
area of
magnetic
force
called?
Electric current
creates a
magnetic field.
_____________
What do you make if
you put together a
closed circuit and wrap
the wire around an iron
bolt?
Electromagnet
How can you make
an electromagnet
stronger?
You can wrap the
wire around the iron
bolt more times.