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Magnetism Book Back Questions & Answers, Exercises, Solutions, Tests, Quizzes, Videos and Podcasts for Class 8 | Unit 2 | Physics | Science | Samacheer Kalvi – English Medium

8th Standard Samacheer Kalvi Physics New Book Back Questions & Answers: https://www.thelearning.app/samacheer-kalvi-english-medium/class-8/science-3/magnetism/exercises

Podcasts: https://www.thelearning.app/samacheer-kalvi-english-medium/class-8/science-3/magnetism/videos

Tests & Quizzes: https://www.thelearning.app/samacheer-kalvi-english-medium/class-8/science-3/magnetism/tests

Flash Cards: https://www.thelearning.app/samacheer-kalvi-english-medium/class-8/science-3/magnetism/flashcards

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00:00 Introduction
00:14 Choose the correct answer
02:26 Fill in the blanks
03:53 Match the following
04:22 Assertion and reason

Questions answered in this video –

1. A magnet attracts __________.

2. One of the following is an example for a permanent magnet.

3. The south pole of a bar magnet and the north pole of a U-shaped magnet will __________.

4. The shape of the Earths magnetic field resembles that of an imaginary __________.

5. MRI stands for __________.

6. A compass is used for __________

7. The magnetic strength is __________ at the poles.

8. A magnet has __________ magnetic poles

9. Magnets are used in __________ for generating electricity.

10. __________ are used to lift heavy iron pieces

11. A freely suspended bar magnet is always pointing along the __________ north-south direction.

12. Magnetite

13. A tiny pivoted magnet

14. Cobalt

15. Closed curves

16. Bismuth

17. Assertion: Iron filings are concentrated more at the magnetic poles. Reason: The magnets are so sharp.

18. Assertion: The Earths magnetic field is due to iron present in its core. Reason: At a high temperature a magnet loses its magnetic property or magnetism.

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