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.

- Container (i): Copper coin and iron nail
- A magnet can attract the iron nail but not the copper coin.

- Container (ii): Iron and wood
- A magnet can attract the iron but not the wood.

- Container (iii): Marble and cloth
- Neither object is magnetic, so a magnet cannot separate them.

- Container (iv): Nickel coin and paper bits
- A magnet can attract the nickel coin but not paper bits.

Thus, Reeta can use a magnet to separate objects in containers (i), (ii), and (iv). Therefore, the correct answer is A: (i), (ii), and (iv).

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.