WorksheetsMagnet
Total questions: 23
Worksheet time: 17mins
What is the region around a magnet where its
magnetic force can be felt?
apa yg dimaksud dengan daerah sekitar magnet yang memiliki gaya menarik atau menolak?
An electromagnet
A compass
A magnetic field
A magnetic crop
West
East
South
North
The magnetic field of a bar magnet is shown in the
figure. What pole is B?
East
West
North
South
_______ magnets have a North pole and a South pole.
No
Broken
All
Some
The relationship between electricity and magnetism is called_______
electrical energy.
ferromagnetism.
electromagnetism.
induced current.
Add more coils of wire to the nail.
Remove all the coils and the nail.
Reverse the poles of the magnet.
Use a smaller battery.
Surrounding every magnet is a(n) __________ __________.
magnetic field
funny saying
smaller magnet
electrical current
a refrigerator magnet
iron
magnetite
an electromagnet
When two magnetic North poles are brought close to each other, they will
attract
cancel each other out
repel
create sparks
When a magnetic South pole is brought close to a magnetic North pole, the magnets will
attract
cancel each other out
repel
create sparks
Which of the following is NOT magnetic?
zinc
nickel
cobalt
iron
When magnetic field lines are drawn, how do they look?
straight lines
curved lines from N to S pole and outwards
lines extending outward in all directions like drawing the Sun
criss-crossed lines like X's
attract
do nothing
repel
all of these.
Decreasing the battery charge
increasing the battery charge
decreasing the coils
Decreasing the amount of loops in the solenoid
What will happen to the north poles of two magnets are put close to each other?
they will attract each other
they will repel each other
one will move away while the other move toward the other one
nothing will happen
What causes magnetism?
Friction
The sun
Moving neutrons
Moving charge/giving electricity
Which of the following is incorrect way to destroy magnet?
Stroking
Heating
Hammering
Dropping
Which of these is not a magnetic metal?
Iron
Nickel
Cobalt
Gold
When an electric current flows in a wire, it creates a magnetic field around the wire. This effect can be used to make ______
electromagnet
permanent magnet
power supply
magnetic pole
Clockwise
It will not move
Counter-clockwise
Need more information
One day in 1820, Hans Christian Oersted was
giving lecture about electric circuits. A magnetic
compass was lying nearby the electric circuit.
When he switched on the circuit, he noticed that
the compass needle changed direction. He
concluded that ______
when electric current flows, there is magnetic field around it
compass needle can conduct electricity
compass needle can turn on electricity
electric current produces electric field
How does the number of coils affect the strength of an electromagnet?
Coils do not affect an electromagnet’s strength
Fewer coils make the electromagnet stronger
More coils make the electromagnet stronger
More coils make the electromagnet weaker
An electromagnet's poles may be reversed by ______ .
decreasing the voltage of the coil
changing the direction of current flow
increasing the number of coils
altering the material used to make the coils
