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WorksheetsElectricity and Magnetism
Total questions: 24
Worksheet time: 25mins
Name
Class
Date
1.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
2.
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.
3.
Which of the following is shown in the picture?
a)
Electromagnet
b)
Electric generator
c)
Electric motor
d)
Transformer
4.
How do you make an electromagnet stronger?
a)
Add a motor and/or lightbulbs
b)
Add more light bulbs and/or wire coils
c)
add more wire coils and/or a switch
d)
add more wire coils and/or batteries
5.
How are electromagnets different from magnets?
a)
magnets can be turned on/off
b)
you can turn an electromagnet on/off
c)
magnets are more powerful
d)
magnets have a North and South pole
6.
What happens if you cut a bar magnet in half?
a)
You get two North pole magnets
b)
You get two South pole magnets
c)
You get a North pole magnet and a South pole magnet
d)
You get two smaller magnets, each with a North and South pole
7.
What is magnetism?
a)
Energy created by magnets
b)
A force created by magnets
c)
A contact force
d)
An invisible force that attracts electrically charged particles
8.
What are the ends of a magnet called?
a)
East and west poles
b)
Left and Right ends
c)
North and South ends
d)
North and South poles
9.
What is the name of the force that attracts or repels materials?
a)
current
b)
electricity
c)
magnetism
10.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
11.
All of the following can be picked up by a magnet EXCEPT:
a)
aluminum
b)
cobalt
c)
nickel
d)
iron
12.
If I were to try to connect the North pole of one magnet to the North pole of another magnet, the two poles would:
a)
attract
b)
repel
c)
neither
13.
If I were to try to connect the North pole of one magnet to the South pole of another magnet, the two poles would:
a)
attract
b)
repel
c)
neither
14.
If I split a magnet in half, I end up with only a North pole on one magnet and a South pole of the other.
a)
True
b)
False
15.
In order for an electromagnet to be formed, an __________ current must pass through a coil of __________ wrapped around an ________ core.
a)
wire, iron, electric
b)
electric, wire, iron
c)
iron, electric, wire
16.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
17.
What happens when a wire is wound into a coil around an iron core in an electromagnet?
a)
the wire exolodes
b)
you get electricuted
c)
the magnetic field becomes stronger
d)
the magnetic field becomes weaker
18.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
19.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
20.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
21.
Opposite magnetic forces _____ each other.
a)
Attract
b)
Repel
22.
What would we call a nail that can pick up a paperclip because it is touching a magnet?
a)
temporary magnet
b)
poles
c)
force
d)
detector
23.
A north pole and a south pole will attract.
a)
True
b)
False
24.
In order to make an electromagnet, you need a
a)
battery, nail, and magnet
b)
battery, wire, and nail
c)
magnet, nail, and wire
d)
all of the above
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