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Book Back Questions & Answers, Exercises, Solutions, Tests, Quizzes, Videos and Podcasts for Class 9 | Universe | Unit 9 | | Science | Samacheer Kalvi – English Medium

New Book Back Questions & Answers: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/universe/exercises

Podcasts: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/universe/videos

Tests & Quizzes: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/universe/tests

Flash Cards: https://www.thelearning.app/samacheer-kalvi-english-medium/class-9/science-4/universe/flashcards

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00:00 Introduction
00:10 Choose the correct answer
01:57 Fill in the blanks
02:40 True or false

Questions answered in this video –

1. Who proposed the heliocentric model of the universe?

2. Which of the following is not a part of outer solar system?

3. Ceres is a _______.

4. The period of revolution of planet A around the Sun is 8 times that of planet B. How many times is the distance of planet A as great as that of planet B?

5. The Big Bang occurred _____ years ago

6. The speed of Sun in km/s is _______.

7. The rotational period of the Sun near its poles is ________.

8. Indias first satellite is _______.

9. The third law of Kepler is also known as the Law of ________.

10. The number of planets in our Solar System is _______.

11. ISS is a proof for international cooperation.

12. Halleys comet appears after nearly 67 hours.

13. Satellites nearer to the Earth should have lesser orbital velocity.

14. Mars is called the red planet.

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