Electromagnetism

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It typically consists of a coil of wire wound around a core material, such as iron.

Front

What is the force that occurs between magnetic poles?

Back

The force that occurs between magnetic poles is called magnetic force, which can be attractive or repulsive depending on the orientation of the poles.

Tags

NGSS.MS-PS2-3

NGSS.MS-PS2-5

Front

What happens when a positive atom meets a negative atom?

Back

A positive atom will be attracted to a negative atom due to opposite charges.

Tags

NGSS.MS-PS2-3

Front

What is a compass needle?

Back

A compass needle is a small magnet that aligns itself with the Earth's magnetic field, pointing towards magnetic north.

Front

Which machine uses magnetism to produce electricity?

Back

An electric generator uses magnetism to convert mechanical energy into electrical energy.

Front

What is the principle of electromagnetism?

Back

The principle of electromagnetism states that electric currents produce magnetic fields and that changing magnetic fields can induce electric currents.

Tags

NGSS.HS-PS2-5

Front

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

Back

A permanent magnet produces a constant magnetic field without the need for electricity, while an electromagnet's magnetic field can be turned on or off and varies with the electric current.

Front

What are the two types of electric charges?

Back

The two types of electric charges are positive and negative.

Front

What is magnetic field strength?

Back

Magnetic field strength is a measure of the intensity of the magnetic field at a given point, often represented by the symbol 'B'.

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Front

What is the role of the iron core in an electromagnet?

Back

The iron core enhances the magnetic field produced by the coil of wire, making the electromagnet stronger.

Tags

NGSS.MS-PS2-3