Amplify Magnetic Fields Ch. 1 Flashcard

Front

What causes the magnetic field to form in an electromagnet?

Back

Electric current flowing in a wire.

Front

How can a permanent magnet lose its magnetic field?

Back

By forcefully vibrating the object, causing its domains to fall out of alignment.

Front

Can magnets interact without touching?

Back

True.

Front

What does it mean if two magnets are attracting?

Back

Their magnetic field lines are pointing towards each other.

Front

How can an electromagnet be strengthened?

Back

By running more current through the wire.

Front

What is an electromagnet?

Back

A type of magnet in which the magnetic field is produced by an electric current.

Front

What are magnetic domains?

Back

Regions within a material where the magnetic fields of atoms are aligned in the same direction.

Front

What happens to the magnetic field of a magnet when it is heated?

Back

It can weaken or disappear due to the increased thermal energy disrupting the alignment of magnetic domains.

Front

What is the difference between a permanent magnet and an electromagnet?

Back

A permanent magnet maintains its magnetic field without the need for an electric current, while an electromagnet requires current to generate a magnetic field.

Front

What materials are commonly used to make electromagnets?

Back

Iron, nickel, and cobalt.