Magnetism Flashcard

Front

What are magnetic field lines?

Back

Magnetic field lines are imaginary lines that represent the direction and strength of a magnetic field. They emerge from the north pole of a magnet and enter the south pole.

Front

Can electricity create a magnet?

Back

Yes, electricity can create a magnet. This is the principle behind electromagnets, where an electric current produces a magnetic field.

Front

What happens when two like poles of magnets are brought close together?

Back

They will repel each other.

Front

What happens when two opposite poles of magnets are brought close together?

Back

They will attract each other.

Front

Why does a compass needle point north?

Back

The North end of the compass lines up with the Earth's magnetic south pole, which is why it points north.

Front

What are the two types of magnetic poles?

Back

North pole and South pole.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current.

Front

What is the relationship between electricity and magnetism?

Back

Electricity and magnetism are interrelated; a changing magnetic field can induce an electric current, and an electric current can create a magnetic field.

Front

What materials are typically attracted to magnets?

Back

Materials like iron, nickel, and cobalt are typically attracted to magnets.

Front

What is the Earth's magnetic field?

Back

The Earth's magnetic field is a magnetic field that extends from the Earth's interior out into space, protecting the planet from solar wind.