11 A Section review Flashcards
What is any object that possesses the property of mangetism and can attract ferromagnetic materials?
Magnets
T or F: Magnetic fields interact with each other just like electric fields.
True
Permanent magnetism is a property of what kind of magnetic material?
Ferromagnetic materials
What feature of ferromagnetic materials make them different from other materials?
Domains
T or F: The source of magnetism is found in the arrangement of neutrons within individual atoms of molecules.
False
T or F: All materials are diamagnetic to some extent, although some materials have other magnetic properties that mask their diamagnetism.
True
T or F: A permanent bar magnet cannot ever lose its magnetic properties.
False
Who changed magnetism from superstition to science?
William Gilbert
Who observed that bits of iron collected at two separate spots on a lodestone that convinced him that lodestone had two magnetic poles?
Petrus de Maricourt
T or F: The first practical use of natural magnets was navigation.
True
