Important Questions Test: Fun With Magnets - Class 6 MCQ

Magnetic field line is directed from North Pole to South Pole outside the magnet. So option is correct.    

Like poles of magnets repel each other.

In containers (i) and (ii), iron nail and steel nail are magnetic while copper coin and aluminium earring are non-magnetic. In container (iii), both marble and gold coin are non-magnetic and in container (iv), both nickel coin and steel nail are magnetic. So, Reeta can use a magnet to separate the objects only in containers (i) and (ii).

We know that poles are the areas of the strongest magnetism in a magnet. That means the force of attraction or repulsion in a magnet is strongest at the poles. Like poles always repel each other while unlike poles always attract each other. Here, the south pole of the bar magnet X is facing towards the north pole of the bar magnet Y. Hence, magnet Y will be attracted by the magnet X. The two south poles of bar magnets Y and Z are facing towards each other. Hence, the magnets Y and Z will get repelled. Thus, we can conclude that magnet Y will get attracted towards magnet X and repelled by magnet Z.

The match box must contain some magnetic material i.e., steel ball bearing.

When a magnet is broken into pieces every piece will have 1 pair of north and south pole.
So if its broken into 6 pieces then each piece will be having one north pole and one south pole. So 6 north poles and 6 south poles, combined will be 12.

Since like poles repel each other, magnet P will repel magnet Q.

Magnetic force is pulling as well as pushing force.

Soft iron placed across the poles will preserve the magnetism for a long time.

We know that every magnet has two poles, one north pole and one south pole. The force of attraction or repulsion in a magnet is strongest at the poles. Like poles always repel each other while unlike poles always attracts each other. Thus, we can say that P and Q are the magnets here. R is not a magnet, as when its both ends are brought near to magnet, its North pole remains stationary. For the magnet P, X is the north pole and Y is the south pole whereas for magnet Q, X is south pole and Y is north pole.

navigational instrument. Also known as: mariners compass.

The effect of magnetic field cannot pass through any metal. Magnetic effects can pass through screens of substances such as plastic, paper, glass etc.

Poles 1, 3 and 5 are like poles, so they will not attract each other. Similarly poles 2, 4 and 6 are like poles. Only unlike poles are attracted by each other.