WorksheetsKS3 Magnetism
Total questions: 20
Worksheet time: 2hrs 1mins
Name
Class
Date
1.
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.
2.
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.
3.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
4.
The magnet's shown will
a)
not move
b)
attract
c)
repel
d)
all of the above
5.
Magnets attract things made of
a)
copper
b)
iron
c)
wood
d)
plastic
6.
All magnets have 2
a)
fields
b)
colors
c)
poles
d)
all of the above
7.
The two poles on a magnet are
a)
north and east
b)
north and west
c)
south and north
d)
south and west
8.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
9.
The Earth has a magnetic field.
a)
True
b)
False
10.
Earth acts like a giant magnet because its center is made up MOSTLY of
a)
granite
b)
limestone
c)
iron
d)
nickel
11.
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
12.
The force of magnetism is stronger when magnets are ________________
a)
cold
b)
round
c)
closer together
d)
farther apart
13.
Magnetism is generated by moving
a)
protons.
b)
electrons.
c)
neutrons.
d)
elements.
14.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
15.
The strongest part of a magnet is...
a)
the bars.
b)
the force field.
c)
the poles.
d)
the middle.
16.
Iron and steel can become _____.
a)
magnetized
b)
transformed into plastics
c)
lined up to the poles
d)
part of the equator
17.
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
18.
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
19.
You can make an electromagnet stronger by...
a)
increasing the current through the wire
b)
make the iron core bigger
c)
increase the number of loops around the core
d)
All of these
20.
What device takes in mechanical energy and produces electricity?
a)
motor
b)
generator
c)
electromagnet
d)
battery
100 %
