4.6.3 Magnetism and Electromagnetism (Lesson 1 Magnets and Magnetic field)
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Field lines
Imaginary line showing the direction of forces caused by a magnet.
Where do Field lines run
North and South
Induced magnet
A temporary magnet, made from a magnetic material in a magnetic field
Magnet
An object that can exert a magnetic force
Magnetic
Object that can be magnetised or attracted to a magnet
Magnetic field
Area surrounding a magnet that can exert a magnetic force
Permanent
Produces its own magnetic field
Pole
The end of a magnet can be north or south
What induced magnets do
Only attract
What can permanent magnets do
Attract and Repel
Are magnets contact or non contact
Non contact as its not physically touching the object
What do like poles do
Repel
What do opposite poles do
Attract
Name magnetic materials
Iron, Cobalt, Nickel, Steel
Example of permanent magnets
Bar magnets and Horseshoe magnets
Where are poles strongest
Where the magnetic fields closer to the poles
Two ways where magnetic fields are shown
iron fillings and plotting compasses