Basic Science Solutions for Class 6 Science Chapter 15 Magnetism are provided here with simple step-by-step explanations. These solutions for Magnetism are extremely popular among Class 6 students for Science Magnetism Solutions come handy for quickly completing your homework and preparing for exams. All questions and answers from the Basic Science Book of Class 6 Science Chapter 15 are provided here for you for free. You will also love the ad-free experience on Meritnation’s Basic Science Solutions. All Basic Science Solutions for class Class 6 Science are prepared by experts and are 100% accurate.

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Natural magnets were used to find directions in old days. Magnet was known as magnetite.

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Three elements that can be permanently magnetised are nickel, cobalt and iron.

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Iron and cobalt are magnetic materials.

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Magnet has maximum strength at its poles.

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When like poles of magnets are brought closer, they repel each other. When unlike poles of magnets are brought closer, they attract each other.

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We can demagnetise a permanent magnet by heating it.



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No, the earth's magnetic north pole is not same as its geographical north pole. It is located near geographical south pole.

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(a) South pole of the magnet will face the compass.
(b) The topmost nail faces the south pole of the magnet.

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A permanent magnet becomes weak with time. It can be protected by keeping a strip of magnetic material between its opposite poles. The strip used to store magnets is called keeper.

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Earth behaves like a huge bar magnet with magnetic poles at its ends. It produces magnetic effect by performing some complex processes.

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Three common applications of magnets are:
(i) Magnets are used to separate magnetic substances from a mixture.
(ii) They are used in generators and motors.
(iii) Sound, images and videos are stored on special surfaces coated with magnetic material in computer hard discs, floppies and video tapes.

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When we dip a bar magnet in a pile of pins, all the pins will stick to the magnet. Moreover, large number of pins will stick at the ends of the magnet because magnetic field of the magnet is strongest at its poles.

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A magnetic compass is a device that is used for finding direction. It consist of a magnetic needle that can turn freely about its centre. The needle is kept in a box with a transparent top. Directions are printed on a card placed below the needle. North pole of the needle is painted red and south pole is painted blue. The shape of the needle is like a head of an arrow. When it is kept away from the magnetic material, the north pole of the needle points towards the geographic north pole.
To find the directions, the box is turned until the north mark on the card falls exactly below the north pole of the needle. In this position, the other directions are indicated by the card.

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When the needle is repelled by one pole of the magnet, it swings around because unlike poles of the needle and the magnet face each other. Hence, north pole of the needle will face the south pole of the magnet and vice versa. Thus, we can say that only repulsion by the other magnet is a sure test of a magnet.

To distinguish between a bar and magnet, take the needle of a compass. Bring the bar that is not a magnet near the pole of the magnetic needle. The pole will attract the bar. The same happens if we turn the bar around, so that its other end faces the compass. If the bar is a magnet, one pole of the needle will be attracted to and the other pole will be repelled by the poles of the magnet facing the compass.

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1. The north pole of a compass needle points towards the magnetic south pole of the earth, and therefore, approximately towards its geographical north pole.
2. Alnico, an alloy of the aluminium, nickel and cobalt, is commonly used to make magnet.
3. A freely suspended bar magnet always point in the north-south direction.
4. The points in a magnet where its magnetism is the strongest are called the poles of the magnet.
5. When a magnet is heated, it loses its magnetism.

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Observation Type of material Magnet or not Conclusions
1. A rod attracts both poles of a compass needle. A. Magnetic
B. Non-magnetic
C. Cannot say
a. Is a magnet
b. Is not a magnet
c. Cannot say
1: A, b
2. A rod attracts one pole and repels the other pole of a compass needle.     2: A, a
3. A freely suspended rod does not rest in a particular direction.     3: B, b
4. A rod is repelled by a magnet.     4: A, a
5. A rod is attracted by a magnet.     5: B, b
6. A rod is attracted by a magnet.     6: B, b



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(a) Copper
Copper is not a magnetic material.

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(c) Magnetite
Magnetite is a natural magnet.

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(c)  and (d)
A magnet is used in both motor and compass.

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(d) magnetic north
South pole of the magnetic needle points towards magnetic north.



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