Electromagnets and magnets

Front

What are the ends of a magnet called?

Back

North and South poles

Front

What does a loudspeaker use to turn electric energy into sound?

Back

An electromagnet

Front

What is the metal center of an electromagnet called?

Back

The core

Front

What is an electromagnet?

Back

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

Front

What happens when like poles of a magnet are brought together?

Back

They repel each other.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

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

Back

A permanent magnet produces a constant magnetic field, while an electromagnet's field can be turned on and off with electric current.

Front

What materials are commonly used as cores in electromagnets?

Back

Iron, steel, or other ferromagnetic materials.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

How can the strength of an electromagnet be increased?

Back

By increasing the electric current, adding more coils of wire, or using a better core material.

Front

What is magnetic field strength measured in?

Back

Tesla (T) or Gauss (G).

Tags

NGSS.MS-PS2-5

Front

What is the right-hand rule in electromagnetism?

Back

A method to determine the direction of the magnetic field around a current-carrying conductor.

Tags

NGSS.MS-PS2-3