Fun with Magnets. Discover the magic of magnetic poles, attraction, repulsion, and their practical applications. Through simple explanations and engaging activities, students will unravel the mysteries of magnets in a fun and educational way.

Topics and Sub Topics in Class 6 Science Chapter 10 Fun with Magnets:

Q 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) Artificial magnets are made in different shapes such as bar magnet, horse shoe and cylindrical.

(ii) The materials which are attracted towards a magnet are called magnetic.

(iii) Paper is not a magnetic material.

(iv) In the olden days, sailors used to find direction by suspending a piece of magnet.

(v) A magnet always has two poles.

Q 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) False

iii) True

iv) False

v) True

vi) True

vii) False

Q 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: The material used for the blade of the pencil sharpener that is attracted to both poles of a magnet might be Iron.

Q 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:

Q 5. Write any two properties of a magnet.

Ans.

1. Attracts and Repels: Magnets pull some objects and push away others.
2. Magnetic Field: Magnets create a force field around them.

Q 6. Where are poles of a bar magnet located?

Ans: The poles of a bar magnet are located at its ends.

Q 7. A bar magnet has no markings to indicate its poles. How would you find out near which end is its north pole is located?

Ans:

We can find out which end of a bar magnet is its north pole using a simple method called the "hanging method." Here's how:

1. Take a piece of string and tie it around the middle of the magnet.
2. Hold the string so that the magnet can freely rotate.
3. The end of the magnet that points towards the geographic north direction (compass north) is the magnet's north pole.

This is because opposite poles attract, so the north-seeking pole of the magnet will align with the Earth's magnetic field, which points towards the geographic north.

Q 8. You are given an iron strip. How will you make it into a magnet?

Ans: We can make it magnet by using following methods:

1. Rubbing Method: Rub one end of the iron strip against a strong magnet, always moving it in the same direction. Do this several times, and the iron strip will become a magnet.
2. Electric Method: Wrap the iron strip around a nail and connect the ends of the iron strip to a battery. Pass an electric current through the iron strip by touching its ends to the battery terminals. This will also turn the iron strip into a magnet.

Q 9. How is a compass used to find directions?

Ans:

A compass works because its needle is a tiny magnet that aligns with Earth's magnetic field. One end of the needle points to the Earth's magnetic north pole, helping us find directions. It works like a magnet's north pole attracting to Earth's north pole, showing us which way is north.

Q 10. A magnet was brought from different directions towards a toy boat that has been floating in water in a tub. The effect observed in each case is stated in Column I. Possible reasons for the observed effects are mentioned in Column II. Match the statements given in Column I with those in Column II.

Ans: