Transcript Natalie`s Project - The-Bobcat

Electricity and Magnetism
by Natalie Kelly
Static Electricity
Static electricity is made up
of 2 charges, positive and
negative.(+ and-) Charges
cause things to stick
together. Same charges
repel, opposites attract.
In the investigate, we
rubbed a balloon to pick
up confetti, then did the
same thing using 1 rub
from a dryer sheet.
Making Circuits
A series circuit is a
continuous circle and
stops if one part is
removed. It has one
path for electricity to
flow. A parallel circuit
has two paths for
electricity to flow and
doesn’t stop if one part
is removed. In the
investigate, we built a
small series circuit.
Magnetic Poles
Every magnet has two poles,
north and south. These are
different from the
geographic north and south
poles. Like electrical
charges, opposite poles
attract and same poles
repel. In the investigate, we
tested magnets to see how
they reacted to other
magnets and classroom
items.
Magnetic Fields
There is a giant
magnetic field around
the earth. Magnetic
fields around a magnet
attract the most things
around the poles,
because the force is
strongest there. Since
we can’t see magnetic
fields, you can put iron
filings on and around
the magnet to see the
magnetic field around
the magnet.
Electromagnets
An electromagnet is
coils of wire around an
iron core. It causes the
core to become
magnetic. The core
will become a
temporary magnet. In
the investigate, Miss
Young built an
electromagnet under
the camera. Then my
group and I built a
simple motor.
How Electrical Energy is
Used
Electricity is used in
many ways, every day.
Electricity is used in
factories to move
assembly lines. Stove
burners produce heat
and red light.
Electricity heats water
for showers, and cools
or heats houses. In the
investigate, we
classified different
pictures into
categories on a poster
board.