Magnetic fields
This tool uses Earth's magnetic field to show direction.
What is a compass?
What are the two types of magnetic poles?
What are the North and South Poles?
The force that causes magnets to attract or repel.
What is magnetism?
This must flow through a wire to create an electromagnet.
What is electric current?
This kitchen decoration often sticks to a refrigerator.
What is a magnet?
Magnetic field lines around a magnet form these.
What are loops?
Opposite 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 a battery?
The device uses electromagnets to produce sound.
What is a speaker?
Outside a magnet, magnetic field lines travel from the north pole to the opposite pole.
What is North to South?
The same magnetic poles do this.
What is repel?
A magnet created by an electric current.
What is an electromagnet?
Wrapping more of these around an iron nail makes an electromagnet stronger.
What are wire coils?
The construction machine uses electromagnets to lift scrap metal
What is a crane?
A magnetic field is strongest near these parts of a magnet.
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 an electromagnet to increase its strength
What is iron?
This navigation tool relies on magnetism.
What is a compass?
This creates a magnetic field around a wire.
What is a magnet?
Earth acts like a giant one of these.
What is a Magnet?
The two ends of a magnet are where the magnetic forces are strongest.
What are magnetic poles?
When the current is turned off, this happens to an electromagnet.
What loses its magnetism?
Electromagnets are found in many of these machines every day.
What are motors?