Science

Fun with Magnets

Question:

Write any two properties of a magnet.

Answer:

Two properties of magnets are:
(i) A magnet has two poles: North pole and South pole.
(ii) Like poles repel each other and unlike poles attract each other.

 

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Fun with Magnets

Q 1.

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.

Q 2.

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

Q 3.

Where are poles of a bar magnet located?

Q 4.

A given bar magnet was broken into pieces. Where will be its North and South pole?
ncert-solutions-for-class-6th-science-chapter-13-fun-with-magnets-10

Q 5.

In which direction does a suspended magnet come to rest?

Q 6.

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.
ncert-solutions-for-class-6th-science-chapter-13-fun-with-magnets-1

Q 7.

How can you separate a magnetic substance from a mixture?

Q 8.

Write two methods by which a magnet can be demagnetised.

Q 9.

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

Q 10.

Name the shepherd after which magnet was named.

Q 11.

A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole located?

Q 12.

Show that a magnet has two poles. What are the properties of the poles of a magnet?

Q 13.

Draw the diagram of (a) Bar magnet (b) Horse-shoe magnet.

Q 14.

It is said that repulsion is a sure test for magnetism. Why is it so?

Q 15.

Write any two properties of a magnet.

Q 16.

You are given two rods. Out of these, one is an iron rod and the other one is magnet, how will you identify these rods?

Q 17.

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.

Q 18.

Write main properties of a magnet.

Q 19.

Identify magnetic and non-magnetic substances from the list given below: Iron, Steel, Nickel, Plastic, Wood, Copper and a Stainless Steel spoon

Q 20.

You are given iron strip. How will you make it into a magnet?

Q 21.

How is compass used to find direction?

Q 22.

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.

Q 23.

Name the compound of iron contained in lode stone.

Q 24.

Draw a diagram of a magnetic compass.

Q 25.

A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. Effect observed in each case is stated in Column I. Possible reason for the observed effects are mentioned in Column II. Match the statements given in Column I with those in Column II.  
ncert-solutions-for-class-6th-science-chapter-13-fun-with-magnets-5

Q 26.

Few iron nails and screws got mixed with the wooden shavings while a carpenter was working with them.How can you help him in getting the nails and screws back from the scrap without wasting his time in searching with his hands?

Q 27.

It is advised to keep the magnets away from television, mobiles, CD and computers  Explain why?