NCERT 6th Class (CBSE) Science: Fun with Magnets

Question: How is compass used to find direction?

Answer: A compass is a small case of glass. A magnetised needle is pivoted inside the box. The needle can rotate freely. Compass also has a dial with directions marked on it. The compass is kept at the place where we want to know the directions. When the needle comes to rest it indicates north-south direction. The compass is then rotated until the north and south marked on the dial are at the two ends of the needle. Usually different colours are used to point the ends of needle to identify the north and the south poles.

Question: Name the compound of iron contained in lode stone.

Answer: The compound of iron is iron oxide or magnetite.

Question: Name the shepherd after which magnet was named.

Answer: Magnets.

Question: How can you separate a magnetic substance from a mixture?

Answer: By using a bar magnet, the magnetic substance is separated from mixture.

Question: At which place on a magnet, its magnetic force is maximum?

Answer: At poles.

Question: In which direction does a suspended magnet come to rest?

Answer: Magnet comes to rest in N-S (north-south) direction.

Question: What happens when N-pole of a magnet is brought near the N-pole of a suspended magnet?

Answer: There is repulsion between these two magnets as there is repulsion between like poles.