Download pg. 565 What is a circuit?

Electricity and Magnetism
Study Guide
Ms. DeSimone
Fourth Grade, Room 221
Test Dates:
4D: Wednesday, March 12th, D3
4R: Thursday, March 13th, D4
Let’s start with…
Electricity
pg. 562
True or False:
It is not possible to
see, smell, or weigh an
electrical charge.
TRUE!
pg. 564
Fill in the blank:
Electrical charges can be
______ or ____________.
A. north or south
B. hot or cold
C. attract or repel
D. positive or negative
pg. 564
What is static electricity?
Is it…
a type of circuit?
the difference between a north and south
pole?
a buildup of electric charges on an object?
the way that power flows through wires?
pg. 565
What is a circuit?
The path along which electric current can
flow
OR…
The flow of electric charges through a
circuit
pg. 567
What is a discharge?
The sudden movement of electric
charges from one object to
another.
You have experienced a discharge
if you have ever touched
something and gotten a SHOCK!
pg. 566
What are the two main
types of circuits?
Series Circuit
Parallel Circuit
pg. 568
Explain how series circuits and
parallel circuits are different.
In a series circuit, electric current
flows in the same direction along a
single path.
In a parallel circuit, electric current
flows through more than one path.
pg. 568
Now, let’s move on to…
Magnetism
pg. 574
What are the two types
of magnetic forces?
___ ___ ___ ___ ___ ___ ___
and
___ ___ ___ ___ ___
ANSWERS:
attract
and
repel
pg. 576
When two magnets pull
or push away, we say
that they ________
one another.
R E P E L
pg. 576
When two magnets pull
together, we say that
they _______ one
another.
A T T R A C T
pg. 576
Which of the materials listed
below do magnets attract?
copper
tin
cobalt
plastic
nickel
steel
iron
wood
pg. 576
What are the ends of
magnets called?
POLES
pg. 577
Name each type of
magnet shown below:
pg. 576
What is the area of magnetic
force around a magnet called?
A. magnetic strength
B. magnetic field
C. magnetic ends
D. magnetic tips
pg. 578
What is an electromagnet?
An electromagnet is a magnet
formed when electric current
flows through wire wrapped in
coils around an iron bar.
pg. 581
Electromagnets can be found in
your house. Name some places
where they can be found.
headphones
telephones
doorbells
motors
There are many! Can you think of any others?
pg. 581
BONUS QUESTION
There will be a 2-point BONUS question on
your test. It will be about one of the
Science labs we have done.
Our labs included:
 Balloon Static
 Stick or Won’t Stick
 Making Parallel and Series Circuits
 Magnets’ Ends
 Lines of Force with Iron Filings
~ THE END ~
PLEASE GO
STUDY!