Online notes and solutions CBSE class 6 science - Magnets
What are Magnets?
Substances that own the property of attracting iron square measure referred to as magnets. Magnets have 2 ends decision its poles. Two poles, named as, the pole and therefore the South Pole. On establish the poles, the pole is usually painted in red color. the opposite finish of the magnet can, therefore, be the South Pole. In laboratories, magnets square measure painted utterly red in color with a white dot to point the pole.
Types of Magnets
Magnets are of two types: – natural and artificial magnets. A material which exists naturally and owns magnetic properties is called a natural magnet, example: magnetite (lodestone). A substance which is made into a magnet by artificial means is known as an artificial magnet. Artificial magnets are formed by magnetizing various shapes of magnetic materials. An iron needle, a rectangular iron bar, a blade or an iron nail can be transformed into a magnet by rubbing a bar magnet over it. Hence, artificial magnets can be of various shapes, example. Bar magnets, horseshoe magnets, dumb-bell shaped magnets, cylindrical magnets, etc. Artificial magnets are more powerful than natural magnets.
Compass
A compass is an instrument that is employed to search out the directions. it's a skinny magnet supported from a pivot in order that it will rotate freely. The needle is placed over a dial with the directions marked. the complete assembly is placed within an airtight box. The pole of the magnet is painted red. At Compass, the magnet points within the north-south direction. By orientating the dial properly, the directions will be found. within the ancient days, an recent inform device known as the south-pointing fish was wont to grasp the directions, during which the top of the fish pointed towards the south.
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