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Electricity and Magnetism Review

Total questions: 110

Worksheet time: 1hrs 3mins

Name
Class
Date
1.
Inside of magnets there are tiny magnets called _______
a)
atoms
b)
domains
c)
mini magnets
2.
Magnetic poles and electric charges are similar in that...
a)
like poles repel and opposites attract
b)
magnetic force is equal to electric force
3.
Which is not a property of all magnets?
a)
Has a magnetic field
b)
exerts forces
c)
has 2 magnetic poles
d)
has 2 geographic ples
4.
If you drop or heat up a a magnet, what will eventually happen to it?
a)
the magnet will become stronger
b)
the magnet will demagnetize
5.
Inside of magnets there are tiny magnets called _______
a)
atoms
b)
domains
c)
mini magnets
6.
The center of a bar magnet is the strongest
a)
True
b)
False
7.
The lines on this image are called...
a)
magnetic field lines
b)
iron fillings
c)
graphite lines
d)
none of these
8.
This type of magnet is DIFFICULT to magnetize
a)
temporary
b)
permanent
9.
Magnetic poles and electric charges are similar in that...
a)
like poles repel and opposites attract
b)
magnetic force is equal to electric force
10.
Magnetic NORTH is actually geographic _________
a)
SOUTH
b)
NORTH
c)
EAST
d)
WEST
11.
If the end of an unknown magnet sticks to a magnet pole labeled "North" the unknown end must be...
a)
North
b)
South
c)
East 
d)
West
12.
Electricity can be used to create a magnet
a)
True
b)
False
13.
A Magnet can be used to create electricity
a)
True
b)
False
14.
Electricity & Magnetism are interconnected
a)
True
b)
False
15.
A _________ is a device that produces magnetism by spinning a coil of wire around a nail.
a)
Generator
b)
Electromagnet
c)
Battery
d)
Galvonometer
16.
Solenoids and Electromagnets use _________ to create Magnetism
a)
Magnetism
b)
Electricity
c)
Wires
17.
Generators use __________ to create Electricity
a)
Electricity
b)
Magnetism
c)
Wires
18.
You can make an electromagnet stronger by...
a)
increasing the current through the wire
b)
make the iron core bigger
c)
increase the number of loops around the core
d)
All of these
19.
Large buildings typically have ___________ to create Electricity in case the power goes out.
a)
Generators
b)
Electromagnets
c)
Solenoids
20.
Magnets stick to any materials that are made of
a)
Iron, Nickel, Copper
b)
Iron, Nickel, Cobalt
c)
Ions, Nickel, Cobalt
d)
Iron, Lead, Cobalt
21.
Electricity can be used to create a magnet
a)
True
b)
False
22.
A _________ is a device that produces magnetism by spinning a coil of wire around a nail.
a)
Generator
b)
Electromagnet
c)
Battery
d)
Galvonometer
23.
Generators use __________ to create Electricity
a)
Electricity
b)
Magnetism
c)
Wires
24.
You can make an electromagnet stronger by...
a)
increasing the current through the wire
b)
make the iron core bigger
c)
increase the number of loops around the core
d)
All of these
25.
Large buildings typically have ___________ to create Electricity in case the power goes out.
a)
Generators
b)
Electromagnets
c)
Solenoids
26.

The magnetic force is strongest at the poles of a magnet.


True or False.

a)

True

b)

False

27.

The area of magnetic force around a magnet is known as the...

a)

magnetic declination

b)

magnetic reclination

c)

magnetic field

d)

magnetic court

e)

magnetic field lines

28.

The magnetic force is strongest at the poles of a magnet.


True or False.

a)

True

b)

False

29.

Do the Earth's magnetic poles stay in one place?


True or False

a)

True

b)

False

30.

The area of magnetic force around a magnet is known as the...

a)

magnetic declination

b)

magnetic reclination

c)

magnetic field

d)

magnetic court

e)

magnetic field lines

31.

Any material that attracts iron and materials that contain iron...

a)

magnet

b)

magnetism

c)

magnetic pole

d)

magnetic force

e)

magnet shield

32.

A magnet always has both a north pole and a south pole.


True or False

a)

True

b)

False

33.

Magnetic poles that are unlike __________ each other, and magnetic poles that are alike __________ each other.

a)

repel, attract

b)

catch, throw

c)

attract, repel

d)

see, know

e)

push, pull

34.

Wherever there is electricity there is only 50% magnetism because 25% comes from the north pole and 25% comes from the south pole.


True or False

a)

True

b)

False

35.

An electric current produces a _______________ _____________.

a)

magnetic force

b)

magnetic style

c)

magnetic current

d)

magnetic field

e)

magnetic solenoid

36.

The relationship between electricity and magnetism equals _______________.

a)

electromagnetism

b)

solenoids

c)

electromagnet

d)

election

e)

electrocity

37.

Explain in your own words (complete sentences). You have 5 minutes to answer this question. If your answer is not in a complete sentence you will lose points. This question is worth 10 points.


How do field lines look when they are traveling from one pole and traveling to another pole. Use vocabulary to help you describe this phenomenon.

4 lines
38.

BONUS: What is a solenoid?

4 lines
39.

You have two magnets. You put the north pole end of magnet (1) up against the north pole end of magnet (2). What happens?

a)

They attract

b)

They repel

c)

Nothing

d)

Electricity

e)

There is friction

40.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

41.

The Earth produces its own ________ field.

a)

spectrum

b)

electric

c)

magnetic

d)

progressive

42.

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

a)

north

b)

south

c)

east

d)

west

43.

The magnetic force is strongest at the poles of a magnet.


True or False.

a)

True

b)

False

44.

Do the Earth's magnetic poles stay in one place?


True or False

a)

True

b)

False

45.

The area of magnetic force around a magnet is known as the...

a)

magnetic declination

b)

magnetic reclination

c)

magnetic field

d)

magnetic court

e)

magnetic field lines

46.

Any material that attracts iron and materials that contain iron...

a)

magnet

b)

magnetism

c)

magnetic pole

d)

magnetic force

e)

magnet shield

47.

A magnet always has both a north pole and a south pole.


True or False

a)

True

b)

False

48.

Magnetic poles that are unlike __________ each other, and magnetic poles that are alike __________ each other.

a)

repel, attract

b)

catch, throw

c)

attract, repel

d)

see, know

e)

push, pull

49.

Wherever there is electricity there is only 50% magnetism because 25% comes from the north pole and 25% comes from the south pole.


True or False

a)

True

b)

False

50.

An electric current produces a _______________ _____________.

a)

magnetic force

b)

magnetic style

c)

magnetic current

d)

magnetic field

e)

magnetic solenoid

51.

The relationship between electricity and magnetism equals _______________.

a)

electromagnetism

b)

solenoids

c)

electromagnet

d)

election

e)

electrocity

52.

Explain in your own words (complete sentences). You have 5 minutes to answer this question. If your answer is not in a complete sentence you will lose points. This question is worth 10 points.


How do field lines look when they are traveling from one pole and traveling to another pole. Use vocabulary to help you describe this phenomenon.

4 lines
53.

BONUS: What is a solenoid?

4 lines
54.

You have two magnets. You put the north pole end of magnet (1) up against the north pole end of magnet (2). What happens?

a)

They attract

b)

They repel

c)

Nothing

d)

Electricity

e)

There is friction

55.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

56.

The Earth produces its own ________ field.

a)

spectrum

b)

electric

c)

magnetic

d)

progressive

57.

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

a)

north

b)

south

c)

east

d)

west

58.

The magnetic force is strongest at the poles of a magnet.


True or False.

a)

True

b)

False

59.

Do the Earth's magnetic poles stay in one place?


True or False

a)

True

b)

False

60.

The area of magnetic force around a magnet is known as the...

a)

magnetic declination

b)

magnetic reclination

c)

magnetic field

d)

magnetic court

e)

magnetic field lines

61.

Any material that attracts iron and materials that contain iron...

a)

magnet

b)

magnetism

c)

magnetic pole

d)

magnetic force

e)

magnet shield

62.

A magnet always has both a north pole and a south pole.


True or False

a)

True

b)

False

63.

Magnetic poles that are unlike __________ each other, and magnetic poles that are alike __________ each other.

a)

repel, attract

b)

catch, throw

c)

attract, repel

d)

see, know

e)

push, pull

64.

Wherever there is electricity there is only 50% magnetism because 25% comes from the north pole and 25% comes from the south pole.


True or False

a)

True

b)

False

65.

An electric current produces a _______________ _____________.

a)

magnetic force

b)

magnetic style

c)

magnetic current

d)

magnetic field

e)

magnetic solenoid

66.

The relationship between electricity and magnetism equals _______________.

a)

electromagnetism

b)

solenoids

c)

electromagnet

d)

election

e)

electrocity

67.

Explain in your own words (complete sentences). You have 5 minutes to answer this question. If your answer is not in a complete sentence you will lose points. This question is worth 10 points.


How do field lines look when they are traveling from one pole and traveling to another pole. Use vocabulary to help you describe this phenomenon.

4 lines
68.

BONUS: What is a solenoid?

4 lines
69.

You have two magnets. You put the north pole end of magnet (1) up against the north pole end of magnet (2). What happens?

a)

They attract

b)

They repel

c)

Nothing

d)

Electricity

e)

There is friction

70.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

71.

The Earth produces its own ________ field.

a)

spectrum

b)

electric

c)

magnetic

d)

progressive

72.

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

a)

north

b)

south

c)

east

d)

west

73.

Permanent magnets can be demagnetized by ___________________ them past the Curie point (approximately 1,060 °F).  

a)

heating

b)

freezing

c)

shaking

d)

solidifying

74.

Which of the following are conductors. (Check all that apply)

a)

copper

b)

Rubber

c)

plastic

d)

Aluminum Foil

e)

Iron nail.

75.

Which of these statements are false?

a)

Electricity is the flow of electrons.

b)

Opposite charges attract

c)

Current running through a wire cannot create a magnetic field.

d)

Like charges rebel.

76.
Current has units: 
a)
kilowatt·hour 
b)
ampere 
c)
coulomb 
d)
volt 
77.

What is current?

a)

Flow of electrical charge

b)

Pressure from power to push electrons

c)

Limits the flow of electrons

78.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
79.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
80.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
81.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
82.
When you charge an electroscope by touching it with a charged balloon, the process is called _____.
a)
friction
b)
conduction
c)
induction
d)
grounding
83.
A neutral object becomes negatively charged when it loses electrons.
a)
true
b)
false
84.
Conduction is the process of charging an object without touching it.
a)
true
b)
false
85.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
86.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
87.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
88.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
89.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
90.
In un-magnetized materials the domains are __________ aligned.
a)
super
b)
slightly
c)
randomly
d)
always
91.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
92.

If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?

a)

The magnetic field

b)

The electrostatic field

c)

The piezoelectric effect

d)

The chemical reaction of the magnet and the filings

93.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
94.
How do electromagnets differ from regular magnets? 
a)
A. They  can be turned off and on 
b)
B. Their polarity can be reversed
c)
C. Their strength can be changed
d)
D. All of the above
95.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
96.

Magnets on refrigerator cannot be turned off. Which type of magnets they belong?

a)

electromagnets

b)

battery

c)

permanent magnets

d)

copper wire

97.

What are the components of the electromagnets?

a)

battery, wire and bulb

b)

battery , copper wire and plastic bottle

c)

battery, copper wire and iron nail

d)

battery, wire and aluminum

98.

What would happen if you took one end of the wire off the battery?

a)

The nail will be a magnet.

b)

The nail would no longer be a magnet

c)

Nothing will happened.

d)

The nail will heats up.

99.

How can the strength of an electromagnet be increased? (mark all that apply)

a)

increase the current flowing through the coil

b)

increase the number of coils

c)

add an amplifier to it

d)

put iron core inside the coil

100.

Which electromagnet is stronger?

a)

A

b)

B

101.

Which electromagnet is stronger?

a)

A

b)

B

102.
What is most likely to happen when the switch is closed?
a)
A magnetic field should be produced
b)
The nail will rust
c)
The battery will explode
d)
The wire will catch on fire
103.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
104.

What are the components of the electromagnets?

a)

battery, wire and bulb

b)

battery , copper wire and plastic bottle

c)

battery, copper wire and iron nail

d)

battery, wire and aluminum

105.

Which electromagnet is stronger?

a)

A

b)

B

106.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
107.
Electric motors are devices that convert _____ energy into  _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
108.

In a _______ a spinning turbine moves magnets which generates an electric current.

a)

Motor

b)

Generator

109.
Which of these pairs of devices operate in reverse of each other?
a)
generator and motor
b)
generator and electromagnet
c)
motor and electromagnet
d)
electromagnet and resistor
110.
A device that increases or decreases the voltage of alternating current is a
a)
generator
b)
motor
c)
transformer
d)
turbine

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