NEW
Font size
S
M
L
XL
WorksheetsMagnetism 2
Total questions: 20
Worksheet time: 12mins
Name
Class
Date
1.
In the Figure, starting from the left what magnetic poles are shown on the two bar magnets?
a)
south, south, north, north
b)
south, north, south, north
c)
north, south, north, south
d)
north, north, south, south
2.
If you cut a bar magnet in half, each half
a)
becomes unmagnetized.
b)
becomes a bar magnet with two poles.
c)
contains one magnetic pole.
d)
is only temporarily magnetized.
3.
How can a permanent magnet be demagnetized?
a)
Cut the magnet in half.
b)
Strike the magnet with a heavy blow.
c)
Heat the magnet up.
d)
both b and c
4.
Which of the following statements describes the interaction between magnetic poles?
a)
Like poles repel each other, and opposite poles attract each other.
b)
Like poles attract each other, and opposite poles repel each other.
c)
Opposite poles repel each other.
d)
Like poles attract each other.
5.
How does the magnetic force exerted by a magnet change as the distance between two magnets increases?
a)
The magnetic force increases.
b)
The magnetic force decreases.
c)
The magnetic force does not change with distance.
d)
The magnetic force stays the same.
6.
What are the objects made of that are attracted to the magnet above?
a)
Wood
b)
Metal
c)
Plastic
d)
Iron
7.
Why does a compass needle point in a north-south direction?
a)
The needle reacts to Earth
's magnetic poles.
's magnetic poles.
b)
The needle forms an electromaggnet with Earth's poles
c)
The needle is lightweitht, so it always spins south.
d)
The needle is pulled in the middle by Earth's power.
8.
What happens if you break a magnet in two?
a)
You get two magnets that each have a south pole.
b)
You will get two magnets that each have a north and south pole
c)
You will have two magnets that don't have poles.
d)
You will still have one magnet.
9.
Which of the following are ferromagnetic materials?
a)
iron
b)
cobalt
c)
nickel
d)
ALL OF THESE
10.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
11.
What will happen if two opposite poles of magnets are placed together?
a)
They will repel each other.
b)
They will attract to each other.
12.
Which of the following are two effects of Earth’s magnetic field?
a)
A. compass points to geographic north, auroras seen at both poles
b)
B. compass points to magnetic north, auroras seen at both poles
c)
C. compass points to geographic south, auroras seen at the equator
d)
D. compass points to geographic north, auroras seen at the equator
13.
#6 Why does each electron in an atom behave like a tiny magnet?
a)
The spinning of an electron produces a magnetic field.
b)
The spinning of an proton produces a magnetic field.
14.
#8 Why do some atoms have strong magnetic properties?
a)
Some atoms contain electrons that are not paired.
b)
Some atoms contain protons that are not paired.
c)
Some atoms contain neutrons that are not paired.
15.
#11 In a magnetized material, most of the domains are arranged in the same direction. In a material that is not magnetized, the domains point in _________ directions.
a)
same
b)
random
16.
Magnetic Field lines....
a)
Go out of the N side and into the S side
b)
Go out of the S side and into the N side
c)
Go out of the N side AND out of the S side
d)
Go into the N side AND go into the S side
17.
A tiny region in a magnet where all the atoms are grouped together and their poles are aligned.
a)
Domain
b)
North
c)
South
d)
Commutator
18.
Magnets strongly attract all metals.
a)
True
b)
False
19.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
20.
Magnetic field lines that curve away from each other show ___.
a)
attraction
b)
repulsion
c)
compass
d)
domains
Reset
