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WorksheetsQ2L2 SCIENCE 9 (MAGNETISM)
Total questions: 25
Worksheet time: 13mins
Where is the force of a magnet the strongest?
at the magnet's poles
in the middle of the magnet
far away from the magnet
When all of the magnetic fields of magnetic domains align in the ______ direction, a material becomes magnetic.
opposite
same
If two magnets have their North Poles facing each other then what will happen?
They will attract.
They will drift.
They will explode.
They will repel.
Which of the following shows the magnetic field correctly around a bar magnet?
Diagram A
Diagram B
Diagram C
Diagram D
We know the substance in the image is magnetized because ___.
All the domains are at right angles to each other.
All the domains are aligned.
All the arrows are drawn in red.
All the domains are not aligned.
The space in which the magnetic effects exists is called ___.
the magnetic field
the magnetic domain
the magnetic material
How do magnetic field lines move?
always from the south pole towards the
north pole
always from the north pole towards the
south pole
always from the pole to the middle
depends of the type of magnet
Which answer describes the pictures correctly?
Both drawings show attraction of magnetic forces.
The left drawing shows repulsion and the right drawing shows attraction of magnetic forces.
Both drawings show repulsion of magnetic forces.
The left drawing shows attraction and the right drawing shows repulsion of magnetic forces.
Electric currents produce _____________
electron clouds
magnetic fields
sound waves
How can the strength of an electromagnet be increased? (mark all that apply)
increase the current flowing through the coil
increase the number of coils
add an amplifier to it
put iron core inside the coil
A magnet that loses all or most of their magnetic strength quickly
permanent magnet
temporary magnet
superconductor
electromagnet
To push away from a magnet
repel
attract
levitate
like
A naturally occurring magnet: also known as lodestone
iron
magnetite
cobalt
steel
The end of the magnet that attracts the south pole and repels the north pole
north pole
south pole
the end of the magnet that attracts the north pole and repels the south pole.
south pole
north pole
Which object would a magnet attract?
a glass bottle
a piece of paper
a steel paper clip
a rubber eraser
The Earth has a magnetic field.
True
False
What happens when you turn off the electric current used to produce a magnetic field (an electromagnet)?
The magnet's strength will increase.
The magnet's strength will decrease.
The magnet's strength will remain the same.
The poles of the magnet will switch.
What will make an electromagnet stronger?
increasing the number of coils
decreasing the number of coils
adding another battery
adding more magnets
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.
True or False: All metals are attracted to magnet.
True
False
