WorksheetsMagnetism
Total questions: 17
Worksheet time: 17mins
A piece of glass is between a magnet and a nail. What change should be made to make sure the nail is still attracted to the magnet?
The magnet is moved further away.
The glass is replaced by a piece of paper.
The nail is replaced by a plastic spoon.
The glass is replaced with a thick piece of wood.
Which MUST be included in an electromagnet?
electric current
light bulb
motor
switch
Like or similar poles on two magnets will
attract
have no effect
repel
all of these
A push or a pull
magnet
attract
force
temporary
A material that is made of iron that is attracted to other materials also made of iron
magnet
attract
force
temporary
When opposite poles of a magnet are near each other, they will
magnet
attract
force
temporary
something that only lasts for a short period of time
magnet
attract
force
temporary
One way to turn off an electromagnet is to ________ the circuit by flipping a switch.
magnet
open
electromagnet
repel
a magnet that can be turned on and off
magnet
open
electromagnet
repel
When two north poles of a magnet are near each other, they will
magnet
open
electromagnet
repel
An electromagnet is able to pick up small objects made of iron because the flow of electricity is able to produce
thermal energy
a magnetic field
light energy
a sound wave
Where is the magnetic field the strongest on a bar magnet?
North Pole
South Pole
middle
at both poles
Electromagnets and bar magnets are both alike because they
have magnetic fields
use electricity
repel other magnets
have poles
A magnet is able to pick up paper clips and can be turned on and off. What kind of magnet is it?
fridge magnet
bar magnet
circle magnet
electromagnet
What will make an electromagnet stronger?
increasing the number of coils
decreasing the number of coils
adding another battery
adding more magnets
True or false: You can turn a bar magnet on and off.
True
False
Both
Mrs. Hickey is the best
Why shouldn't bar magnets be rubbed together?
It can make the magnetic field too strong.
It can weaken the magnetic field.
It can change the magnet's color.
It can create too much oxygen.
