EVENTS CONVENT HIGH SCHOOL
12/10/2021 CLASS-6 SESSION 2021-22
SUBJECT : SCIENCE
chapter-13
FUN WITH MAGNETS
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1. Fill in the blanks in the following:
(i) Artificial magnets are made in different shapes such as_________ ,_______ and
(ii) The materials which are attracted towards a magnet are called_________
(iii) Paper is not a________
(iv) In olden days, sailors used to find direction by suspending a piece of
(v) A magnet always has ________poles.
Ans:
(i) bar magnet, horse-shoe magnet and cylindrical magnet
(ii) magnetic materials
(iii) magnetic
(iv) bar magnet or lode stone
(v) two or a pair of
2. State whether the following statements are true or false:
(i) A cylindrical magnet has only one pole.
(ii) Natural magnets were discovered in Greece.
(iii) Similar poles of a magnet repel each other.
(iv) Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
(v) Bar magnets always point towards North-South direction when suspended freely in air.
(vi) A compass can be used to find East-West direction at any place.
(vii) Rubber is a magnetic material.
Ans:
(i) False
(ii) True
(iii) True
(iv) False
(v) True
(vi) True
(vii) False
3. It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it.
Ans: Iron is used to make some part of sharpener due to which it is attracted toward magnet.
4. Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.
Ans:
VERY SHORT ANSWER TYPE QUESTIONS
1. Name the compound of iron contained in lode stone.
Ans: The compound of iron is iron oxide or magnetite.
2. Name the shepherd after which magnet was named.
Ans: Magnets.
3. How can you separate a magnetic substance from a mixture?
Ans: By using a bar magnet, the magnetic substance is separated from mixture.
4. At which place on a magnet, its magnetic force is maximum?
Ans: At poles.
5. In which direction does a suspended magnet come to rest?
Ans: Magnet comes to rest in N-S (north-south) direction.
SHORT ANSWER TYPE QUESTIONS
1. Draw the diagram of (a) Bar magnet (b) Horse-shoe magnet.
Ans:
2.Identify magnetic and non-magnetic substances from the list given below: Iron, Steel, Nickel, Plastic, Wood, Copper and a Stainless Steel spoon
Ans:
3. Draw a diagram of a magnetic compass.
Ans:
4. Write main properties of a magnet.
Ans: (i) Magnet has two poles—south pole and north pole.
(ii) Poles of magnet cannot be isolated.
(iii) Like poles repel each other and unlike poles attract each other.
(iv) Freely suspended magnet aligns in N-S direction.
5.Write two methods by which a magnet can be demagnetised.
Ans: (1) By hammering the magnet strongly.
(2) By heating a magnet strongly and keeping it in the east-west direction.
