Electricity and Magnetism Unit Assessment
NAME: __________________________________________
DATE: __________________________
Directions: Read each question carefully and use complete sentences when needed.
1. Is the copper wire in a circuit an insulator or conductor? Explain your answer.
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2. Which of the following would most likely be attracted to a magnet?
A.
B.
C.
D.
Leaf
Sand
Tissue
Staple
3. Which of the following is not a type of magnet?
A.
B.
C.
D.
Semi-permanent magnet
Temporary magnet
Permanent magnet
Electromagnet
4. Which results when electricity flows through a wire
A.
B.
C.
D.
Heat
Water
Atoms
Molecules
5. What types of materials are attracted to magnets? List at least three.
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CEN Fourth
6. The picture below shows two magnets. What will happen as the two magnets are
pushed toward each other?
A.
B.
C.
D.
The magnets will attract each other.
The magnets will make a spark
The magnets will get hotter
The magnets will gain mass
7. Which term describes the movement of electrical charges?
A.
B.
C.
D.
Wave
Current
Matter
Magnetism
8. The pictures below show different arrangements of a battery, a light bulb, and a piece
of copper wire. Which arrangement will light the bulb?
A.
B.
C.
D.
CEN Fourth
9. The picture below shows a circuit. What will most likely happen if you add a second
battery to the circuit?
A.
B.
C.
D.
The first battery will die.
The first battery will become stronger.
The bulb will become brighter.
The bulb will become dimmer.
10. Which best describes the electricity in a series circuit?
A.
B.
C.
D.
It has no resistance.
It can power one object only.
It flows around one path only.
It requires multiple power sources.
11. The graphic below shows electricity flowing through a circuit to light a bulb. Which of
the following best describes the paperclip?
A.
B.
C.
D.
The paperclip is a conductor.
The paperclip is a battery.
The paperclip is an insulator.
The paperclip is a magnet.
12. Where is a magnet’s magnetic force strongest?
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CEN Fourth
13. Why does a light bulb turn on when one closes the switch in a circuit?
A.
B.
C.
D.
Because closing the switch hooks up the battery
Because closing the switch completes the circuit
Because closing the switch produces electricity
Because closing the switch magnetizes the circuit
14. Which of the following is a parallel circuit?
A.
B.
C.
D.
15. Which of the following best describes relationship between magnetism and electricity?
A. When a circuit is closed, it repels any magnets that are placed nearby.
B. When magnets are rubbed against a wire, electricity begins flowing through the
wire
C. When wire is wrapped around a magnet, electricity stops flowing through the wire
D. When an electric current flows through a wire, a magnetic field forms around the
wire
16. List three facts about magnets.
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CEN Fourth
17. The picture below shows a bar magnet’s magnetic field. At which point is the
magnetic field the strongest?
A.
B.
C.
D.
1
2
3
4
18. Which of the following will produce light?
A.
B.
C.
D.
Metal attracting a magnet
Ice melting in water
Sound coming from a speaker
Electricity heating a wire
19. What will happen if a resistor is added to a simple circuit containing one light bulb?
A.
B.
C.
D.
The bulb will dim
The bulb will burn out.
The bulb will flash on and off.
The bulb will become brighter.
20. Explain what the difference is between attraction and repulsion.
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
21. When one plugs in an electrical cord, they do not get an electrical shock. Which
statement explains why?
A.
B.
C.
D.
The rubber around the electrical wires is a good conductor of electricity.
The rubber around the electrical wires changes the direction of the electric current
The rubber around the electrical wires does not conduct electricity well.
The rubber around the electrical wires changes the charge of the electric current
CEN Fourth
22. The diagram below shows an incomplete circuit that includes a light bulb, copper
wire, and a battery. The light bulb will not light unless the circuit is completed.
Complete the following:
a. Identify what material is needed to complete the circuit.
b. Explain how that material should be used to complete the circuit.
23. Create a double-bubble map comparing and contrasting parallel and series circuits.
24. Create a tree map listing at least four insulators and conductors.
CEN Fourth
Electricity and Magnetism Unit Assessment
NAME: Key
Directions: Read each question carefully and use complete sentences when needed.
1. Is the copper wire in a circuit an insulator or conductor? Explain your answer.
The copper wire is a conductor because electricity can flow through it easier.
2. Which of the following would most likely be attracted to a magnet?
A.
B.
C.
D.
Leaf
Sand
Tissue
Staple
3. Which of the following is not a type of magnet?
A.
B.
C.
D.
Semi-permanent magnet
Temporary magnet
Permanent magnet
Electromagnet
4. Which results when electricity flows through a wire
A.
B.
C.
D.
Heat
Water
Atoms
Molecules
5. What types of materials are attracted to magnets? List at least three.
Materials made of metal, such as iron and steel, are attracted to magnets. Three
things are a screw, paperclip, copper, etc.
CEN Fourth
6. The picture below shows two magnets. What will happen as the two magnets are
pushed toward each other?
A.
B.
C.
D.
The magnets will attract each other.
The magnets will make a spark
The magnets will get hotter
The magnets will gain mass
7. Which term describes the movement of electrical charges?
A.
B.
C.
D.
Wave
Current
Matter
Magnetism
8. The pictures below show different arrangements of a battery, a light bulb, and a piece
of copper wire. Which arrangement will light the bulb?
A.
B.
C.
D.
CEN Fourth
9. The picture below shows a circuit. What will most likely happen if you add a second
battery to the circuit?
A.
B.
C.
D.
The first battery will die.
The first battery will become stronger.
The bulb will become brighter.
The bulb will become dimmer.
10. Which best describes the electricity in a series circuit?
A.
B.
C.
D.
It has no resistance.
It can power one object only.
It flows around one path only.
It requires multiple power sources.
11. The graphic below shows electricity flowing through a circuit to light a bulb. Which of
the following best describes the paperclip?
A.
B.
C.
D.
The paperclip is a conductor.
The paperclip is a battery.
The paperclip is an insulator.
The paperclip is a magnet.
12. Where is a magnet’s magnetic force strongest?
The magnetic force is strongest at a magnet's poles.
CEN Fourth
13. Why does a light bulb turn on when one closes the switch in a circuit?
A.
B.
C.
D.
Because closing the switch hooks up the battery
Because closing the switch completes the circuit
Because closing the switch produces electricity
Because closing the switch magnetizes the circuit
14. Which of the following is a parallel circuit?
A.
B.
C.
D.
15. Which of the following best describes relationship between magnetism and electricity?
A. When a circuit is closed, it repels any magnets that are placed nearby.
B. When magnets are rubbed against a wire, electricity begins flowing through the
wire
C. When wire is wrapped around a magnet, electricity stops flowing through the wire
D. When an electric current flows through a wire, a magnetic field forms around the
wire
16. List three facts about magnets.
A magnet has two poles, north and south. Opposite poles attract. A magnet creates an
invisible area of magnetism called a magnetic field. If you cut a bar magnet in half, you
get two magnets.
CEN Fourth
17. The picture below shows a bar magnet’s magnetic field. At which point is the
magnetic field the strongest?
A.
B.
C.
D.
1
2
3
4
18. Which of the following will produce light?
A.
B.
C.
D.
Metal attracting a magnet
Ice melting in water
Sound coming from a speaker
Electricity heating a wire
19. What will happen if a resistor is added to a simple circuit containing one light bulb?
A.
B.
C.
D.
The bulb will dim
The bulb will burn out.
The bulb will flash on and off.
The bulb will become brighter.
20. Explain what the difference is between attraction and repulsion.
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
_______________________________________________________________________________________
21. When one plugs in an electrical cord, they do not get an electrical shock. Which
statement explains why?
A.
B.
C.
D.
The rubber around the electrical wires is a good conductor of electricity.
The rubber around the electrical wires changes the direction of the electric current
The rubber around the electrical wires does not conduct electricity well.
The rubber around the electrical wires changes the charge of the electric current
CEN Fourth
22. The diagram below shows an incomplete circuit that includes a light bulb, copper
wire, and a battery. The light bulb will not light unless the circuit is completed.
Complete the following:
a. Identify what material is needed to complete the circuit.
b. Explain how that material should be used to complete the circuit.
23. Create a double-bubble map comparing and contrasting parallel and series circuits.
24. Create a tree map listing at least four insulators and conductors.
CEN Fourth