Chapter Exam

Chapter-7 Magnetism — Online MCQ Test

Q: Which of the following is a natural magnet?

Answer: B. Lodestone — Lodestone is a naturally occurring magnet. The other items are not natural magnets.

Q: The region of a magnet where its magnetic force is strongest is called its ____.

Answer: C. pole — The magnetic force is maximum at the poles of a magnet.

Q: Which of the following materials is most suitable for making a permanent magnet?

Answer: C. Steel — Steel is suitable for permanent magnets because it retains magnetism for a longer time.

Q: A magnet attracts a paper clip more strongly when the paper clip is closer to the magnet. What does this show?

Answer: A. Magnetic force decreases with distance — Magnetic force is stronger near the magnet and becomes weaker as the distance increases.

Q: Which of the following is the correct statement about magnetic field lines?

Answer: B. They never cross each other — Magnetic field lines do not intersect each other. If they crossed, the field would have two directions at one point, which is impossible.

SCIENCE · Samacheer Kalvi 8th · Tamil Nadu State Board

Practice Chapter-7 Magnetism with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 8th SCIENCE. This chapter covers: magnet field poles Explains properties of magnets magnetic fields and their uses. AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter-7 Magnetism — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 8th SCIENCE — Chapter-7 Magnetism, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which of the following is a natural magnet?

A. Iron nail
B. Lodestone ✓
C. Steel key
D. Copper wire

Answer: B. Lodestone
Lodestone is a naturally occurring magnet. The other items are not natural magnets.

The region of a magnet where its magnetic force is strongest is called its ____.

A. center
B. axis
C. pole ✓
D. surface

Answer: C. pole
The magnetic force is maximum at the poles of a magnet.

Which of the following materials is most suitable for making a permanent magnet?

A. Soft iron
B. Plastic
C. Steel ✓
D. Wood

Answer: C. Steel
Steel is suitable for permanent magnets because it retains magnetism for a longer time.

A magnet attracts a paper clip more strongly when the paper clip is closer to the magnet. What does this show?

A. Magnetic force decreases with distance ✓
B. Magnetic force increases with distance
C. Magnetism is present only in paper clips
D. The paper clip is made of plastic

Answer: A. Magnetic force decreases with distance
Magnetic force is stronger near the magnet and becomes weaker as the distance increases.

Which of the following is the correct statement about magnetic field lines?

A. They start from south pole and end at north pole outside the magnet
B. They never cross each other ✓
C. They are visible without any aid
D. They exist only inside the magnet

Answer: B. They never cross each other
Magnetic field lines do not intersect each other. If they crossed, the field would have two directions at one point, which is impossible.

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