Chapter 4. Exploring Magnets Science Curiosity class 6 in English Medium ncert book solutions NCERT Text Book Questions With Answers

Chapter 4. Exploring Magnets

The NCERT Textbook Exercise helps students revise the important concepts covered in the chapter. The following questions and answers are prepared in simple and easy-to-understand language according to the latest NCERT Curiosity textbook and CBSE guidelines. Students are advised to attempt each question on their own before checking the answers.

NCERT Textbook Exercise

Question 1. Fill in the blanks.

(i) Unlike poles of two magnets attract each other, whereas like poles repel each other.

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

(iii) The needle of a magnetic compass rests along the north-south direction.

(iv) A magnet always has two poles.

Question 2. State whether the following statements are True (T) or False (F).

(i) A magnet can be broken into pieces to obtain a single pole.

Answer: False

(ii) Similar poles of a magnet repel each other.

Answer: True

(iii) Iron filings mostly stick in the middle of a bar magnet when it is brought near them.

Answer: False

(iv) A freely suspended bar magnet always aligns with the north-south direction.

Answer: True

Question 3. Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting interaction between them. Fill in the blanks.

Question 4. Atharv rolled a bar magnet over a heap of steel U-clips. At which position will the magnet attract the maximum number of U-clips?

Answer:

The maximum number of steel U-clips will stick near the two ends (poles) of the bar magnet because the magnetic force is strongest at the poles. Therefore, the correct observation is Option (i), where Positions A and C attract the maximum number of clips, while the middle position attracts fewer clips.

Question 5. Reshma bought three identical metal bars. Two were magnets and one was an ordinary iron bar. Without using any other material, how can she identify the two magnets?

Answer:

Bring one end of each bar near the ends of the other bars. If two bars show repulsion between similar poles, then both are magnets. The ordinary iron bar will always be attracted by a magnet and will never repel it. Therefore, the two bars that repel each other are the magnets.

Question 6. You are given a magnet whose poles are not marked. How can you identify its poles using another magnet with marked poles?

Answer:

Bring the known North Pole of the marked magnet close to one end of the unmarked magnet.

• If they repel each other, that end is the North Pole.
• If they attract each other, that end is the South Pole.

Similarly, the other end can also be identified.

Question 7. A bar magnet has no markings to indicate its poles. How would you find out which end is the North Pole without using another magnet?

Answer:

Suspend the bar magnet freely using a thread tied at its centre. Allow it to come to rest. The end that always points towards the geographic north is the North Pole, while the opposite end is the South Pole.

Question 8. If the Earth itself is a magnet, can you identify the magnetic poles of the Earth by observing a magnetic compass?

Answer:

Yes. The north-seeking end of a compass needle points towards the Earth's geographic north. This indicates that the Earth behaves like a giant magnet. The magnetic poles of the Earth are located close to its geographic poles, allowing the compass to indicate directions.

Question 9. While repairing a gadget, a mechanic found that steel screws kept falling from the screwdriver. Suggest a solution based on what you have learnt in this chapter.

Answer:

The mechanic should magnetise the tip of the screwdriver by rubbing it several times in one direction with one pole of a bar magnet. The magnetised screwdriver will hold the steel screws firmly, making the repair work easier.

Question 10. Two ring magnets X and Y are arranged one above the other. Magnet X does not move down further. What is the reason? Suggest a way to bring magnet X in contact with magnet Y without pushing either magnet.

Answer:

The facing poles of magnets X and Y are like poles, so they repel each other. This magnetic repulsion prevents magnet X from moving downward.

To bring magnet X into contact with magnet Y, simply turn either one of the ring magnets upside down. Unlike poles will then face each other and the magnets will attract, allowing magnet X to move down and touch magnet Y.

Question 11. Three magnets are arranged as shown in the figure. The polarity of one end (5) is given as North. Determine the polarity at the remaining ends (1, 2, 3, 4, and 6).

Answer:

• 1 – South (S)
• 2 – North (N)
• 3 – South (S)
• 4 – North (N)
• 6 – South (S)

This is because every magnet always has one North Pole and one South Pole, and the arrangement follows the rules of magnetic attraction and repulsion.

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