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WorksheetsMagnetism
Total questions: 60
Worksheet time: 1hrs 2mins
Name
Class
Date
1.
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
2.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
3.
Iron, Nickel and cobalt are all __________________ materials
a)
Shiny
b)
poles
c)
magnetic
d)
cold
4.
Where is the strongest attraction force of the magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
5.
A magnet will attract scissors if the scissors contain:
a)
copper
b)
aluminum
c)
gold
d)
nickel
6.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
7.
Which of the following is true about a bar magnet?
a)
Its magnetic field is strongest near its center.
b)
It is surrounded by a magnetic field.
c)
The north pole is stronger than the south pole.
d)
The south pole is stronger than the north pole.
8.
A device that uses a free-moving magnetic needle to show direction is a:
a)
Ruler
b)
magnet
c)
compass
d)
magnetic field
9.
A north pole and a south pole will attract.
a)
True
b)
False
10.
This is a picture of a ________________ magnet.
a)
bar
b)
circle
c)
horseshoe
d)
paddle
11.
Which two metals will be attracted by a magnet?
a)
iron and steel
b)
gold and silver
c)
aluminum and lead
d)
copper and cobalt
12.
The space around a magnet where the force of a magnet can attract best is called__________
a)
magnetism
b)
bar magnet
c)
horseshoe magnet
d)
magnetic field
13.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
14.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
15.
The force of magnetism can go through many materials.
a)
True
b)
False
16.
The force of magnetism is stronger when magnetic field lines are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
17.
What is our best evidence that Earth has a magnetic field?
a)
All things fall toward Earth's center
b)
A compass needle lines up with it
c)
Winds blow from east to west
d)
Earth's oceans all have currents
18.
How is an electromagnet different from a permanent magnet?
a)
An electromagnet is smaller and less powerful.
b)
An electromagnet's magnetism can be turned off.
c)
An electromagnet can be built without using metal.
d)
An electromagnet does not attract objects containing iron.
19.
A simple electromagnet can be made with which of the following?
a)
an electric current
b)
a turbine and nail
c)
a nail, a wire, and a battery
d)
a compass and a battery
20.
A coil that is magnetized only when an electric current flows through it is_______.
a)
a battery
b)
a generator
c)
a conductor
d)
an electromagnet
21.
How can the strength of an electromagnet be increased?
a)
by rubbing it with a stronger magnet
b)
by increasing the coils of wire around the iron
c)
by increasing the length of the wire from the battery
d)
by loosening the coil of wire around the iron
22.
True or False: A magnetic field is invisible.
a)
True
b)
False
23.
The planet earth is a giant magnet?
a)
True
b)
False
24.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
25.
On Earth, where is Magnetic North approximately located?
a)
The Equator
b)
The North Pole
c)
The South Pole
d)
New Brighton
26.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
27.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molten iron core
c)
The Earth's mantel
d)
The Sun
28.
A paper clip is an example of a:
a)
magnetic material
b)
permanent magnet
c)
bar magnet
d)
insulator
29.
If the North Pole of a permanent magnet is placed next to a compass as seen in the picture, which direction will the needle move?
a)
Clockwise
b)
Counter-clockwise
c)
It will not move
d)
Need more information
30.
An electromagnet's poles may be reversed by:
a)
decreasing the voltage of the coil
b)
increasing the number of coils
c)
changing the direction of current flow
d)
altering the material used to make the coils
31.
What causes the Northern Lights?
a)
Explosions of stars
b)
Storms at the North Pole
c)
Evil Spirits
d)
Solar Winds
32.
A coil of wire acts like a magnet when __________________ flows through it.
a)
water
b)
current
c)
voltage
d)
food
33.
This is called an __________________.
a)
bomb
b)
circuit
c)
electromagnet
d)
coil
34.
You can make an electromagnet stronger by: having a __________________ current in the wire
a)
smaller
b)
larger
c)
greener
d)
water
35.
You can make an electromagnet stronger by: using a __________________ material for the core.
a)
soft
b)
conducting
c)
magnetic
d)
hard
36.
Electric motors are devices that convert _____ energy into _____ energy.
a)
electrical; mechanical
b)
mechanical; electrical
c)
chemical; potential
d)
mechanical; kinetic
37.
Generators are devices that convert _____ energy into _____ energy.
a)
chemical; mechanical
b)
mechanical; electrical
c)
electrical; mechanical
d)
potential; kinetic
38.
Earth acts like a giant magnet because its center is made up MOSTLY of
a)
granite
b)
limestone
c)
iron
d)
nickel
39.
True or False: All metals stick to magnets.
a)
True
b)
False
40.
A device that uses a free-moving magnetic needle to show direction is a:
a)
lodestone
b)
magnet
c)
compass
d)
magnetic field
41.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
42.
Magnets that are arranged like this will _______.
a)
move away from each other (repel)
b)
move towards each other (attract)
43.
How can you make a magnetic field stronger?
a)
Cut it in half
b)
Add two magnets together
c)
Rub it with a paperclip
d)
Bring it closer to a compass
44.
When you put ring magnets on a pencil, the magnets stay apart from each other because
a)
magnets are too weak to stay together.
b)
material that makes up the magnets aren't magnetic.
c)
same poles of the magnets are facing each other.
d)
the pencil stops the force of the magnets.
45.
A horseshoe magnet has __________
a)
a. a battery on each end
b)
b. two south poles
c)
c. two north poles
d)
d. a north pole and a south pole
46.
A magnetized iron nail is called a ________ magnet.
a)
permanent
b)
temporary
c)
horseshoe
d)
industrial
47.
Iron filings form this when sprinkled on a piece of paper over a magnet.
a)
temporary magnet
b)
lines of force
c)
magnetism
d)
north pole
48.
The space in which the force of a magnet can act is its magnetic field.
a)
true
b)
false
49.
Which of the following is NOT magnetic?
a)
zinc
b)
iron
c)
cobalt
d)
nickel
50.
Katherine's mother cried,"Oh no! I spilled my needles on the carpet! I'll never find them all!" Racing to her mother's rescue, Katherine exclaimed, "Don't worry Mother dear! I have a magnet!" What must the needles have in them if Katherine's plan is to be successful?
a)
aluminum
b)
iron
c)
rubber
d)
homing devices
51.
What is the magnetic field of a magnet?
a)
lines of magnetism that extend from the north pole of the magnet to the south pole of the magnet
b)
the field in which magnets play magneball
c)
poles
d)
lines that make the magnet stronger
52.
The diagram below shows a bar magnet. Which direction best represents the direction of the needle of a compass placed at point A?
a)
left
b)
right
c)
up
d)
down
53.
The diagram below represents the magnetic lines of force around a bar magnet. At which point is the magnitude of the magnetic field strength of the bar magnet the weakest
a)
A
b)
B
c)
C
d)
D
54.
A student sprinkled iron filings around a bar magnet and observed that the filings formed the pattern shown below. The magnetic field is strongest at point
a)
A
b)
B
c)
C
d)
D
55.
A magnetic compass points towards the north geographic pole of the Earth because
a)
all magnetic poles, north or south, point that way due to the spin of the Earth.
b)
there is a north magnetic pole near the north geographic pole.
c)
there is a south magnetic pole near the north geographic pole.
d)
the static electricity in the atmosphere causes the alignment of the compass.
56.
A compass points to the left. Where was this compass placed?
a)
A
b)
B
c)
C
d)
D
57.
Which of the following shows the magnetic field correctly around a bar magnet?
a)
A
b)
B
c)
C
d)
D
58.
Magnetic NORTH is actually geographic _________
a)
SOUTH
b)
NORTH
c)
EAST
d)
WEST
59.
Magnetic field lines
a)
go from south to north
b)
go from north to south
c)
go from east to west
d)
go from west to east
60.
A strong magnetic field has field lines
a)
further apart
b)
closer together
c)
crossed over one another
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