Magnetism Flashcards
The magnetic effect
Of a magnet is strongest at the two ends - called the North Pole and the South Pole.
Like poles repel each other
Unlike poles attract each other.
A magnetic compass
Contains a small magnet balanced on a thin spindle which is free to move. It’s North Pole points north.
A magnetic field
Is the space around a magnet where a magnetic force can be seen.
Magnetic field lines
Go from the North Pole to the South Pole of a magnet.
The Earth has a magnetic field
As if it had a huge bar magnet at its centre, with the magnet’s South Pole in the northern hemisphere.
Magnets are used in
Electric motors, telephones, loudspeakers, compasses, press and fridge doors, dynamos etc.
Iron, Nickel, Cobalt or their alloys
Can be magnetised.