"Magnetic" refers to the property of certain materials that can attract or repel other materials, particularly metals like iron, nickel, and cobalt. This phenomenon occurs due to the alignment of electrons within the material, creating a magnetic field. Magnets can be permanent, like those found on refrigerator doors, or temporary, like the magnetism produced by an electric current. In everyday life, magnets are used in various applications, including compasses for navigation, MRI machines in medicine, and speakers in audio devices. The strength of a magnet is measured in units called teslas, and its effects can be observed in both natural and man-made environments.