You know by now that magnetism is a force that acts on some metals. You may also know that there are different types of magnets. Sort the magnet types below according to their properties. ( I'll give brainiest )
attracts iron is BOTH core is cobalt, nickel or iron: normally made of several parts: requires electricity to work: used in junkyards are all ELECTROMAGNETS always works: usually one solid piece is BAR MAGNET