WorksheetsQuiz 8: Magnetism
Total questions: 20
Worksheet time: 20mins
What is the relationship between electricity and magnetism?
They are unrelated
They are opposites
They are intimately related
They have no connection
What are magnetic poles?
Regions on a magnet where the magnetic field is strongest
Regions on a magnet where the magnetic field is weakest
Regions on a magnet where the magnetic field is absent
Regions on a magnet where the magnetic field changes direction
How do magnetic poles interact?
They always attract each other
They always repel each other
They can attract or repel each other
They have no interaction
What is the behavior of magnetic forces between poles?
They increase with distance
They decrease with distance
They remain constant with distance
They have no relation to distance
What creates a magnetic field?
Protons
Neutrons
Electrons
Moving Charges
How is a magnetic field represented?
By electric field lines emanating from one point and landing on another
By magnetic field lines that form closed loops
By gravitational field lines directed towards a massive object
What creates a stronger magnetic field?
Stationary electrons
Fast-moving electrons
Fast-moving neutrons
What are magnetic domains?
Clusters of atoms in a material w/aligned magnetic fields
Clusters of unaligned atoms in a material
Clusters of charged particles in a material
Clusters of magnets in a material
How can a piece of metal be turned into a magnet?
By introducing a strong electric field regardless of temperature
By introducing a strong magnetic field under the right temperature conditions
By introducing a strong gravitational field
What determines the strength of a magnet?
The number of magnetic domains
The orientation of magnetic domains
Both the number and orientation of magnetic domains
Neither the number nor orientation of magnetic domains
What happens when a magnet is cut in half?
Each piece is a magnet
The magnet loses its magnetic properties
The magnet becomes stronger
The magnet becomes weaker
What is the direction of magnetic field lines?
From south to north
From north to south
From east to west
From west to east
Can you produce current in a wire with a magnet that is sitting still?
Yes; having a magnet near a wire is enough to excite the electrons
Only if there is a change in the magnetic field strength
No; magnets cannot create electricity
A coil spins in a magnetic field. Of the following
which causes an increase in the induced EMF in
the coil?
Spinning the coil faster
Removing the coil from the magnetic field
Keeping the flux at a constant rate
Decreasing the number of turns of wire in
the coil
A student moves a magnet into a coil of wire as shown in the diagram. The coil of wire is connected to a sensitive ammeter.
increasing the number of turns on the coil
increasing the speed of the magnet
increasing the strength of the magnet
all of the above
