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Question (31)

QN003821

If three identical magnets are each broken into two pieces, how many pole pairs are formed altogether?

(A) 3
(B) 6
(C) 9
(D) 12

Correct Answer: B

Explanation:

3 magnets × 2 pieces = 6 pole pairs.

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Question (32)

QN003822

Which material was used in the activity to identify pole regions?

(A) Sand particles
(B) Salt crystals
(C) Iron filings
(D) Sawdust

Correct Answer: C

Explanation:

Iron filings help locate the poles.

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Question (33)

QN003823

A student observes that 90 out of 100 filings gather near the ends of a magnet. What percentage gather away from the poles?

(A) 5%
(B) 10%
(C) 15%
(D) 20%

Correct Answer: B

Explanation:

100% − 90% = 10%.

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Question (34)

QN003824

Which of the following best explains why poles are important?

(A) They are decorative parts of magnets.
(B) They are the regions of strongest magnetic effect.
(C) They make magnets heavier.
(D) They reduce attraction.

Correct Answer: B

Explanation:

Magnetic effect is strongest near poles.

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Question (35)

QN003825

A magnet is cut into 20 equal pieces. How many total poles are present after cutting?

(A) 20
(B) 40
(C) 10
(D) 2

Correct Answer: B

Explanation:

20 pieces × 2 poles = 40 poles.

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Question (36)

QN003826

In terms of attraction, the pole region compared to the middle region is generally:

(A) Weaker
(B) Equal
(C) Stronger
(D) Absent

Correct Answer: C

Explanation:

Poles attract more strongly than the middle region.

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Question (37)

QN003827

What evidence shows that a single magnetic pole cannot exist?

(A) Magnets are metallic.
(B) Every broken piece still has two poles.
(C) Magnets attract iron.
(D) Magnets have different shapes.

Correct Answer: B

Explanation:

Each broken piece contains both poles.

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Question (38)

QN003828

If a magnet is divided into 7 pieces, how many pole pairs will be present?

(A) 7
(B) 14
(C) 21
(D) 28

Correct Answer: A

Explanation:

Each piece forms one pole pair.

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Question (39)

QN003829

A magnet attracts 72 filings. Of these, 60 are near the poles. What fraction of the filings are away from the poles?

(A) 1/6
(B) 1/4
(C) 1/3
(D) 5/6

Correct Answer: A

Explanation:

Away from poles = 12. Fraction = 12/72 = 1/6.

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Question (40)

QN003830

A science exhibition model uses magnets of different shapes. Which statement remains true for all of them?

(A) They have only one pole.
(B) Their poles always occur in pairs.
(C) Their poles are at the centre.
(D) Their poles disappear after use.

Correct Answer: B

Explanation:

Regardless of shape, magnets always have a North pole and a South pole.

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Question (31)

If three identical magnets are each broken into two pieces, how many pole pairs are formed altogether?

Explanation:

Link:

Question (32)

Which material was used in the activity to identify pole regions?

Explanation:

Link:

Question (33)

A student observes that 90 out of 100 filings gather near the ends of a magnet. What percentage gather away from the poles?

Explanation:

Link:

Question (34)

Which of the following best explains why poles are important?

Explanation:

Link:

Question (35)

A magnet is cut into 20 equal pieces. How many total poles are present after cutting?

Explanation:

Link:

Question (36)

In terms of attraction, the pole region compared to the middle region is generally:

Explanation:

Link:

Question (37)

What evidence shows that a single magnetic pole cannot exist?

Explanation:

Link:

Question (38)

If a magnet is divided into 7 pieces, how many pole pairs will be present?

Explanation:

Link:

Question (39)

A magnet attracts 72 filings. Of these, 60 are near the poles. What fraction of the filings are away from the poles?

Explanation:

Link:

Question (40)

A science exhibition model uses magnets of different shapes. Which statement remains true for all of them?

Explanation:

Link:

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