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Magnetism

Total questions: 28

Worksheet time: 19mins

Name
Class
Date
1.

How many poles does a magnet have

a)

1

b)

2

c)

3

d)

4

2.

Magnetism is a type of (a)  

3.

A magnet has (a)   poles

4.

Which of these materials would be attracted to a magnet?

a)

copper

b)

aluminum

c)

cobalt

d)

iron

5.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
6.

The two poles are called the _______ poles

a)

east and west

b)

north and east

c)

south and west

d)

north and south

7.

Magnetism is a _________ force

a)

non-contact

b)

contact

c)

chemical

d)

biological

8.

Every magnet has both a _________ pole and a __________ pole.

a)

North, South

b)

East, West

c)

Positive, Negative

d)

Positive, South

9.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
10.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
11.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

12.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles. 
d)
the middle.
13.
Which way will the magnets move after they are released?
a)
Towards each other
b)
Away from each other
c)
Not enough information
14.

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

15.

The area around a magnet is called the .....

a)

attraction zone

b)

work area

c)

magnetic field

d)

hot zone

16.

An electromagnet is a magnet tat can be turned on or off.

a)

True

b)

False

17.

The strongest parts of the magnet are ...

a)

Fronts

b)

Backs

c)

Poles

d)

Middle

18.
What kind of magnet can be turned on and off?
a)
refrigerator magnet
b)
electromagnet
c)
magnetite
d)
iron
19.
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.
20.

Which of the following represents the force of magnetism?

a)
b)
c)
d)
21.

What do you think would happen to an electromagnet if you disconnected the battery?

a)

Nothing would happen to the electromagnet.

b)

The electromagnets magnetic field would get stronger.

c)

The electromagnets magnetic field would get weaker.

d)

The electromagnets magnetic field would "go away."

22.

The picture is an example of an:

a)

Electric nail

b)

Electric circuit

c)

Electric magnet

d)

Electric power cell

23.
If you wrap more coils around an electromagnet, it will become...
a)
brighter
b)
stronger
c)
weaker
d)
invisible
24.

How can you increase the magnetic field strength in an electromagnet?

a)

Increase the number of coils.

b)

increase the voltage

c)

increase the current by reducing the resistance of the coil

d)

all of the above

25.

A magnet will pick up an object that is made of...

a)

Plastic

b)

Glass

c)

Iron or steel

d)

Copper

26.

Magnetic fields always go from ______ to ______

a)

north to south

b)

south to north

c)

north to north

d)

south to south

27.

What happens when you cut a magnet in half?

a)

The magnets that were cut off only have one pole

b)

Two smaller magnets each with North and South poles are formed

c)

The magnet loses its magnetic field

d)

It is impossible to cut a magnet in half

28.

Which of the following ways can be used to observe magnetic field lines? (Select all that are correct)

a)

Titanium nails

b)

Iron filings

c)

Plotting compasses

d)

Electrical induction