Lesson 3: Electromagnetism

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 magnetic domains in an unmagnetized material?

Back

They are randomly oriented and do not produce a net magnetic field.

Front

What is an electromagnet?

Back

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

Front

What does running a current through a wire create?

Back

A magnetic field around the wire.

Front

What effect does increasing the number of coils around an electromagnet have?

Back

It increases the strength of the electromagnet.

Tags

NGSS.MS-PS2-3

Front

What is magnetic force?

Back

The attraction or repulsion that occurs between charged particles due to their motion.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What is the relationship between electricity and magnetism?

Back

Electricity can create a magnetic field, and a changing magnetic field can induce an electric current.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is a solenoid?

Back

A coil of wire that produces a magnetic field when an electric current passes through it.

Front

What is the role of an electric generator?

Back

To convert mechanical energy into electrical energy using electromagnetic induction.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Front

What is the principle behind an electric nail?

Back

It uses an electromagnet to attract ferromagnetic materials.

Tags

NGSS.MS-PS2-5