Magnets and Magnetic Fields

These flashcards cover key terms and concepts related to magnets and magnetic fields as outlined in the lecture notes.

Magnet

An object that generates a magnetic field that attracts or repels certain materials, particularly iron, nickel, and cobalt.

Electromagnetism

The branch of physics that deals with the relationship between electricity and magnetism.

Ferromagnetic

Substances like iron and steel that are strongly attracted to magnets.

Paramagnetic

Substances such as aluminum and platinum that are slightly attracted to magnets.

Diamagnetic

Substances that are slightly repelled by magnets, such as table salt and gold.

Ampère’s Law

A principle that describes how electric currents generate magnetic fields.

Faraday’s Law of Induction

A law stating that a changing magnetic field can induce an electric current.

Magnetic domains

Regions within a material where groups of atoms align their magnetic fields.

Magnetic field

The region around a magnet where the force of magnetism is felt.

Magnetic poles

Every magnet has two poles: the North Pole (N) and the South Pole (S), which demonstrate attraction and repulsion.

Solenoid

A coil of wire carrying current that generates a magnetic field.

Magnetization

The process of making a material magnetic.