Magnetism

Man-made magnets

Made from iron, steel, cobalt and nickel

Natural form of magnets

lodestones

Properties of a magnet

Attracts magnetic materials, has poles, like poles repel, unlike poles attract and freely suspended magnet shows north-south direction

Magnetic field

The area around the magnet with magnetic force

Electromagnet

Type of magnet that has temporary magnetic effect when electric current flows through it

The pattern of the magnetic field

Depends on the shape of the conductor used

The direction of the magnetic field

Determined by the direction of the electric current

The right-hand grip rule

Application of magnet in daily life

The needle of a compass uses a magnet to show the direction of the poles

Application of electromagnets in daily life

Credit cards and debit cards have an electromagnetic strip that stores information