Magnetic fields
This tool uses Earths magnetic field to show direction.
What is a compass?
What are the two types of magnetic poles?
What are North and South Poles!
The force that causes magnets to attract or repel.
What is magnetism?
This must flow through a wire to create and electromagnet.
This kitchen decoration often sticks to a refrigorator.
What is a magnet?
Magnetic field lines around a magnet form these.
What are loops?
Opposites magnetic poles do this.
What is Attract.
The invisible area around a magnet where magnetic forces act.
What is a magnetic field?
A common classroom power source used for electromagnets.
What is battery?
The device uses electromagnets to produce sound.
What is a speaker?
Outside a magnet magnetic field lines travel from this pole to the opposite pole.
What is North to South?
Same Magnetic poles do this.
What is Repel
A magnet created by an electric current
What is an electromagnet?
Wrapping more of these around and iron nail makes and electromagnet stronger.
What are wire coils?
The construction machine uses electromagnets to lift scrap metal
What is a crane?
What are poles?
This metal is commonly attracted to magnets
What is Iron
The flow of electricity through a wire.
What is electric change?
This material is often placed inside and electromagnet to indcrease its strength
What is iron?
This navigation tool relies on magnetism.
What is a compass?
This creates a magnetic fiels around a wire.
What is a magnet
Earth acts like a gaint one of these
What is a Magnet
The two ends of a magnet are where the magnetic forces are strongest.
When the current is turned off this happens to an electromagnet.
What is it loses its magnetism?
Electromagnets are found in many of these machines everday.