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WorksheetsMagnetism
Total questions: 45
Worksheet time: 47mins
Name
Class
Date
1.
What do magnets stick to?
a)
copper
b)
wood
c)
iron
d)
plastic
2.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
3.
When two magnets attract, they ______________
a)
push apart
b)
change color
c)
get colder
d)
pull together
4.
When two magnets repel, they ________________
a)
change color
b)
pull together
c)
push apart
d)
get colder
5.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
6.
The force of magnetism is stronger when magnets are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
7.
What would increase the strength of an electromagnet?
a)
Increasing the amount of current flowing through the wire.
b)
Inserting a wooden core inside the coil
c)
Changing the direction of the current
d)
Decreasing the number of coils of wire
8.
a)
30 coils will hold 50 paperclips
b)
Using more coils increases the strength of the electromagnet
c)
15 coils hold twice as many paperclips as 10 coils
d)
The more coils, the fewer paperclips the electromagnet will hold
9.
This is a magnet made by an electric current
a)
temporary
b)
permanent
c)
electromagnet
d)
ferromagnet
10.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
11.
What part of an atom is the most responsible for magnetism?
a)
Proton
b)
Neutron
c)
Electron
12.
AC stands for:
a)
alternating circuit
b)
alternating current
c)
awesome Comanche
d)
a rock band
13.
DC stands for:
a)
direct current
b)
direct circuit
c)
neither of these
d)
both of these
14.
In an alternating current, the electrons flow back and forth and can travel long distances.
a)
True
b)
False
15.
In a direct current, electricity flows in one direction and cannot travel far.
a)
True
b)
False
16.
The greater the amount of loops you have....
a)
The less voltage
b)
The voltage stays the same
c)
The greater the voltage
d)
There is no change
17.
What did Faraday's experiments with magnets and electromagnetic induction demonstrate?
a)
Strong electromagnets make electric current.
b)
Electric current is made when the magnetic field changes.
c)
Strong electric current makes electromagnets.
d)
Magnetic fields are made when the electric field changes.
18.
If you wrap more coils around an electromagnet, it will become...
a)
brighter
b)
stronger
c)
weaker
d)
invisible
19.
Are ALL metals magnetic?
a)
Yes
b)
No
20.
Magnetic domains are
a)
regions that may or may not be magnetized.
b)
clusters of atoms randomly aligned
c)
regions of atoms magnetically aligned
d)
blocks of material
21.
Natural magnets, such as lodestones, display ferrimagnetism.
a)
True
b)
False
22.
It is possible for a magnet to have only one pole.
a)
True
b)
False
23.
The first practical use of natural magnets was navigation.
a)
True
b)
False
24.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
25.
Surrounding every magnet is a __________ __________.
a)
magnetic field
b)
electrical current
c)
another magnet
26.
Magnets that are arranged like this will _______.
a)
move away from each other (repel)
b)
move towards each other (attract)
27.
These magnets will _______.
a)
move away from each other (repel)
b)
move toward each other (attract)
28.
Spinning electrons themselves are small magnets.
a)
true
b)
false
29.
This is an example of...
a)
attraction
b)
repulsion
30.
This is an example of magnets...
a)
attracting to each other.
b)
repelling each other.
31.
What can you make visible by sprinkling iron filings around a magnet?
a)
the areas called domains
b)
the magnetic field lines
c)
the magnetic forces
d)
the north and south poles
32.
Magnets attract to __________________.
a)
iron
b)
nickel
c)
cobalt
d)
all of the above
33.
True of False: Magnets attract to aluminum foil.
a)
True
b)
False
34.
A magnet can lose its magnetic properties if you ___________________
a)
drop or hit the magnet
b)
put the magnet in a strong magnetic field that is opposite of its own
c)
heat up the magnet
d)
all of the above
35.
There are several modern uses of magnets. A ________________________ can have million of magnets. Each magnet points in its own direction, making a code. This allows an individual to make purchases.
a)
Driver's License
b)
Check Book
c)
Credit Card
d)
TV
36.
There are several modern uses of magnets. ________________________ make electricity by spinning magnets around coils of wire. The magnetism makes an electric current in the wire.
a)
ceiling fans
b)
smoke detectors
c)
flashlights
d)
generators
37.
True or False: The Earth is a giant magnet
a)
True
b)
False
38.
This large crane magnet functions only when the electrical current is ON. The crane magnet is an example of what type of magnet?
a)
NIB Magnet
b)
Ceramic Magnet
c)
Electromagnet
d)
funnel magnet
39.
A tiny region ion a magnet where all the atoms are grouped together and their poles are aligned.
a)
Domain
b)
North
c)
South
d)
Commutator
40.
A magnet will attract scissors if the scissors contain:
a)
copper
b)
aluminum
c)
gold
d)
nickel
41.
Which type of rock is naturally magnetic?
a)
granite
b)
lodestone
c)
limestone
d)
sandstone
42.
Which of the following is a temporary magnet?
a)
A refrigerator magnet
b)
A nail you magnetized yourself
c)
A magnetic rock
d)
A compass
43.
Steven was turning a nail into a temporary magnet. He can make his temporary magnet stronger by _____.
a)
attaching more paperclips
b)
rubbing the nail with the magnet in one direction for fewer strokes
c)
rubbing the nail with the magnet in one direction for more strokes
d)
rubbing the nail with the magnet both directions
44.
How do you make an electromagnet?
a)
wrap a battery in wire and connect it to an iron nail.
b)
wrap a wire with another wire and connect it to an iron nail.
c)
wrap an iron nail in wire and connect it to a power source.
d)
wrap an iron nail in wire and connect it to another iron nail.
45.
Which one is NOT a good conductor?
Copper
Aluminium
Iron
Rubber
Copper
Aluminium
Iron
Rubber
a)
Copper
b)
Aluminium
c)
Iron
d)
Rubber
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