Download PowerPoint Review (electricity and magnetism)

Electricity
and
Magnetism
Review
Protons have a __charge (+)
Positive
Electrons have a
______ charge (-)
negative
Neutrons have a
_____ charge.
Neutral or no
charge
When 2 objects with a
positive (+) charge are
brought near each
other, they _________
each other.
repel
When 1 object with a
positive charge (+) and 1
object with a negative
charge (-) are brought
near each other, they
_____ each other.
attract
The path (train track)
the current/electricity
moves on is called a
____.
circuit
The difference between
current electricity and
static electricity is that
current electricity
______ (like a river).
flows
When the lights are on,
there is a closed or
open circuit (gate)?
Closed
The space around a
magnet where the force
is present is called its
______.
Magnetic field
What is at each end
of a magnet?
Poles, north and
south
An item with
extra/more protons or
electrons has a positive
or negative this.
charge
A sock with a
positive charge will
cling to a shirt that
has a ____ charge.
negative
define insulator
An insulator is a material
through which electricity
cannot pass through easily.
Name 3 insulators
Ex. Rubber, Wood, paper, glass,
plastic
Define conductor.
A conductor is a material through
which electricity can pass through
easily.
Give 3 conductors
Ex. (most metal) Iron, aluminum,
copper, water, people
What is the difference
between series and
parallel circuits?
Series circuit-1 path for
electricity to follow. If
the path is broken,
electricity will not flow.
Parallel circuit-more
than 1 path for
electricity to follow. If
path is broken,
electricity can still flow
another way.
Circuits
Which charges move (protons
or electrons)?
electrons
Give an example of an energy
source/cell in a flashlight.
battery
What’s the difference
between a permanent
magnet and an
electromagnet?
Electromagnets can be
turned on and off.
How can you increase the
power/strength/magnetic
field of an electromagnet?
Turn up power, wrap
more coils/loops around
the core (nail).
What are resistors?
They slow down the flow of
electricity/current (think of the
tip of a lightbulb, slows it down
so the bulb doesn’t burst).
Review from the past (not on
test…just for fun)!
What is the longest bone?
femur
What is the smallest bone?
Stirrup (in the ear)
What is the most broken bone?
Clavicle (collar bone)
Where is blood made?
In the bones
How did you do???
Way to go!!
Keep study
material in a
special place and
study!!!!!