GEOLOGY

Detailed explanation-1: -The property of a magnet to attract magnetic material like iron is called magnetism. The force with which it attracts iron, cobalt, and nickel is called magnetic force.

Detailed explanation-2: -A magnet is any material that attracts iron and materials that contain iron. The ancient Greeks discovered that a rock called magnetite attracted materials containing iron. The rocks also attracted or repelled other magnetic rocks. The attraction or repulsion of magnetic materials is called magnetism.

Detailed explanation-3: -The metals that are magnetic (attracted to magnets) are also the metals that can be made into magnets. The most common magnetic metal is iron which is the main substance in steel. Iron is also in a mineral called loadstone which is the most magnetic naturally-occurring mineral.

Detailed explanation-4: -The substances which are attracted to magnets are known as magnetic materials. Magnetic materials are categorized as magnetically hard, or soft materials. Magnetically soft materials are the ones that are easily magnetized but the induced magnetism usually is temporary.

Detailed explanation-5: -Magnetic metals Steel contains iron, so a steel paperclip will be attracted to a magnet too. Most other metals, for example aluminium, copper and gold, are NOT magnetic. Two metals that aren’t magnetic are gold and silver. They are often used for making jewellery, like crowns.