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WorksheetsMagnetism
Total questions: 23
Worksheet time: 3hrs 45mins
Name
Class
Date
1.
Which of the following will not attract or repel each other?
a)
two magnets
b)
a magnet and a stationary charge
c)
a magnet and a current-carrying wire
d)
two current-carrying wires
2.
Generators can produce only alternating current.
a)
True
b)
False
3.
A magnet moving back and forth in the center of a coil of wire produces a direct current in the wire.
a)
True
b)
False
4.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
5.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
6.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
7.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
8.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
9.
How many poles does a magnet have?
a)
1
b)
2
c)
3
d)
4
10.
Magnets that are arranged like this will _______.
a)
move away from each other (repel)
b)
move towards each other (attract)
11.
These magnets will _______.
a)
move away from each other (repel)
b)
move toward each other (attract)
12.
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.
13.
What is the device seen here?
a)
generator
b)
electric motor
c)
electromagnet
d)
magnet
14.
Magnets attract things made of
a)
copper
b)
iron
c)
wood
d)
plastic
15.
What do you call it when two magnets come together?
a)
attract
b)
iron
c)
poles
d)
repel
16.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
17.
Amy used a magnet to hold one piece of paper on the refrigerator. Later, she tried to use the same magnet to hold a stack of four pieces of paper, and the magnet wouldn't stick to the fridge. Why did this happen?
a)
The magnet needs glue
b)
The magnet couldn't hold due to the thickness of the paper
c)
Paper repels magnets
d)
A magnet isn't attracted to the refrigerator.
18.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
19.
Which is NOT a use of magnets?
a)
Generating electricity
b)
Holding cabinet doors closed
c)
Sorting paper from plastic
d)
Storing information on computer hard drives.
20.
Which of these can move a nail lying on the table without touching the nail?
a)
A magnet
b)
String
c)
A wire
d)
A ruler
21.
Magnets will stick to refrigerator doors because the doors are
a)
Painted with plastic.
b)
Made of metal.
c)
Easy to open.
d)
Heavy.
22.
Which of these is attracted to a magnet?
a)
iron nail
b)
copper penny
c)
piece of paper
d)
notebook
23.
A magnet will pick up a nail, but not a penny because the nail
a)
has rust on it.
b)
is lighter than the penny.
c)
has a sharp point.
d)
contains iron.
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