Magnetism in motion

Aligned domains increase magnetic strength.

Randomly oriented domains create a stronger magnet.

Alignment has no effect on magnetism.

Domains must be in pairs to be magnetic.

They attract each other.

They repel each other.

They lose their magnetism.

Nothing happens.

Electric current flowing through a wire creates a magnetic field.

Electromagnets can be turned on and off.

Electromagnetism is not used in modern technology.

Magnetic fields are created only by permanent magnets.

They use less electricity.

They float above the tracks, reducing friction.

They are slower than regular trains.

They do not use magnets.

Electromagnet and permanent magnet

Battery and wire

Speaker cone and plastic case

Electric current and resistor

Navigation using compasses

Data storage in credit cards

Cooking food in a microwave

Security systems with magnetic locks

When domains are scattered and facing different directions, magnetism is strong.

When domains are perfectly aligned, magnetism is strong.

Magnetism does not depend on the alignment of domains.

Domains must be destroyed for magnetism to occur.