Magnetism and electromagnetism occur because of the magnetic fields around magnets and around electric currents.
How many poles does a bar magnet have?
Which combination of magnetic poles will repel each other?
North and north
North and south
South and north
Which of these is a magnetic material?
What happens to an induced magnet when it leaves the magnetic field?
The magnetic poles swap places
The magnetism is lost
Its magnetism passes to the nearest magnetic material
What is the test for a permanent magnet?
The magnet attracts another magnet
The magnet attracts a magnetic material
The magnet repels another magnet
Where is a magnetic field strongest?
In the middle of each field line
Where the arrow is marked on each field line
Where the field lines are closest together
In which direction are the arrows on a magnetic field line?
From south pole to north pole
From north pole to south pole
In the direction a south pole would feel the magnetic force
Which statement about the magnetic field lines in a uniform magnetic field is true?
The magnetic field lines in a uniform magnetic field converge to a point
The magnetic field lines in a uniform magnetic field are parallel
The magnetic field lines in a uniform magnetic field curve from North pole to South pole
What instrument can be used to map a magnetic field?
What sort of force is magnetic force?
A contact force
An electrostatic force
A non-contact force