1. Test Dates: 4D: Wednesday, March 12th, D3 4R: Thursday, March 13th, D4
Electricity and Magnetism Study Guide Ms. DeSimone Fourth Grade, Room 221
Test Dates:
4D: Wednesday, March 12th, D3
4R: Thursday, March 13th, D4

2. Let’s start with…
Electricity
pg. 562

3. It is not possible to see, smell, or weigh an electrical charge. TRUE!
True or False:
It is not possible to see, smell, or weigh an electrical charge. TRUE!
pg. 564

4. Electrical charges can be ______ or ____________.
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

5. 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

6. What is a circuit? OR… The path along which electric current can flow
The flow of electric charges through a circuit
pg. 567

7. 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

8. What are the two main types of circuits?
Series Circuit Parallel Circuit
pg. 568

9. 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

10. Now, let’s move on to…
Magnetism
pg. 574

11. What are the two types of magnetic forces?
___ ___ ___ ___ ___ ___ ___
and
___ ___ ___ ___ ___
ANSWERS:
attract
repel
pg. 576

12. When two magnets pull or push away, we say that they ________ one another.
R E P E L
pg. 576

13. When two magnets pull together, we say that they _______ one another.
A T T R A C T
pg. 576

14. Which of the materials listed below do magnets attract?
copper
nickel
tin
steel
cobalt
iron
plastic
wood
pg. 576

15. What are the ends of magnets called?
POLES
pg. 577

16. Name each type of magnet shown below:
pg. 576

17. 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

18. 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

19. There are many! Can you think of any others?
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

20. Making Parallel and Series Circuits Lines of Force with Iron Filings
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

21. ~ THE END ~ PLEASE GO STUDY!