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WorksheetsMagnetism Pre-Test
Total questions: 32
Worksheet time: 16mins
Name
Class
Date
1.
Magnetic rocks are known as lodestones.
a)
True
b)
False
2.
When a south pole is brought near a north pole, it
a)
Attracts
b)
Repels
3.
Any material that exerts magnetic force is considered to be a magnet.
a)
True
b)
False
4.
Any material that attracts iron and materials that contains iron
a)
Magnet
b)
Iron
c)
lobestone
d)
free floating magnet
5.
When two south poles are brought together, they
a)
repel
b)
attract
6.
The attraction of repulsion of magnetic materials
a)
Magnetism
b)
Magnetic Field
c)
Poles
d)
Magnetricity
7.
Any magnet, no matter what shape, has these two ends
a)
Free floating
b)
Magnetic Poles
c)
Lobestones
d)
Electrical Ends
8.
A region of a magnetic force around a magnet.
a)
Magnetic Poles
b)
Magnetism
c)
Magnetic Field
d)
Region of Attraction
9.
Invisible lines that curve from one pole to the other
a)
Magnetic Field
b)
Magnetism
c)
Iron Lines
d)
Magnetic Field Lines
10.
Which is true about magnetic poles?
a)
Both the north and the south pole always point north.
b)
The pole that points south is labeled the south pole, and one pole of a magnet will point north.
c)
Two north poles make up a pair of unlike, or opposite, poles.
d)
A magnet can ALWAYS be suspended in the air by another, smaller magnet.
11.
What happens if you break a magnet in half?
a)
Neither half will be able to attract or repel.
b)
Neither half will have a pole.
c)
One half will have a north pole only and one half will have a south pole only.
d)
Each half will be a new magnet, with both a north and south pole.
12.
Magnetic Poles that are alike
a)
do not interact.
b)
repel each other
c)
attract each other
d)
have the same shape
13.
A cluster of billions of atoms that all have magnetic fields lined up in the same way is known as a
a)
magnetic pole
b)
permanent magnet
c)
magnetic domain
d)
magnetic field line
14.
An example of a common ferromagnetic material is
a)
copper
b)
nickel
c)
hydrogen
d)
plastic
15.
Magnetic field lines around a bar magnet
a)
cross back and forth over one another
b)
spread out from one pole and curve around to the other.
c)
are perfectly straight
d)
are only perpendicular to the magnet.
16.
Where is the magnetic pole in the Northern Hemisphere?
a)
at the geographic north pole
b)
in northern Canada
c)
at the geographic south pole
d)
along the coast of Antarctica
17.
Streams of electrically charged particles flowing at high speeds from the sun make up the
a)
magnetic field
b)
magnetic domain
c)
solar wind
d)
magnetosphere
18.
If you are in the Northern Hemisphere and see the Northern Lights, you are seeing
a)
the magnetosphere.
b)
a magnetic field
c)
magnetic field lines
d)
an aurora
19.
Earth’s magnetic field can make a magnet out of an iron bar by causing the magnetic domains to
a)
change in the magnetic declination
b)
move back and forth between the north and south poles.
c)
create magnetic field lines
d)
line up in the same direction.
20.
A spinning electron produces a(n)
a)
magnetic field
b)
proton
c)
element
d)
piece of iron
21.
True or False: A magnetic pole is the part of a magnet where the magnetic effect is weakest.
a)
True
b)
False
22.
The magnetic domains are two regions of space above Earth’s surface that contain electrons and protons traveling at high speeds.
a)
False
b)
True
23.
Which is NOT a property of magnetic field lines?
a)
They never cross
b)
They can be directly observed.
c)
They form complete loops from pole to pole
d)
They spread out as they get farther from the magnet.
24.
Most materials are not magnetic because
a)
Earth's heat has destroyed their magnetic fields
b)
They lack magnetic fields
c)
their magnetism has worn off.
d)
their magnetic domains are arranged randomly.
25.
The magnetic properties of a material depend on its
a)
shape
b)
atomic structure
c)
magnetic poles
d)
position
26.
A magnet made from a steel paperclip is most likely a(n)
a)
temporary magnet
b)
permanent magnet
c)
electron
d)
lodestone
27.
What is one way you can destroy a magnet’s magnetism?
a)
by breaking it
b)
by heating it
c)
by putting it in water
d)
by cooling it
28.
As Earth’s magnetic pole moves, the magnetic declination in a given location will
a)
return to zero
b)
switch to point south
c)
change
d)
stay the same
29.
The closer together a magnet’s magnetic field lines are,
a)
the stronger the magnetic field
b)
the weaker the magnetic field
c)
the closer they come to disappearing
d)
the closer they are to the magnet's center
30.
The magnetic force around a magnet is the strongest at the ________.
a)
Poles
b)
Iron lines
c)
Top
d)
Middle
31.
Charged particles from the solar wind come closest to Earth at the equator, where Earth’s magnetic field lines dip down to Earth’s surface.
a)
True
b)
False
32.
Magnetic field lines spread out from one pole, curve around the magnet, and return to the other pole.
a)
True
b)
False
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