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Chapters
2: Motion
3: Fluids
4: Electric charge and Electric current
5: Magnetism and Electromagnetism
6: Light
7: Heat
8: Sound
▶ 9: Universe
10: Matter Around Us
11: Atomic Structure
12: Periodic Classification of Elements
13: Chemical Bonding
14: Acids, Bases and Salts
15: Carbon and its Compounds
16: Applied Chemistry
17: Animal Kingdom
18: Organisation of Tissues
19: Plant Physiology
20: Organ Systems in Animals
21: Nutrition and Health
22: World of Microbes
23: Economic Biology
24: Environmental Science
25: Computer – LibreOffice Impress
![Samacheer Kalvi solutions for Science [English] Class 9 TN Board chapter 9 - Universe - Shaalaa.com](/images/science-english-class-9-tn-board_6:5f2b1b2038084cf381bfa42c826a928c.jpg "Samacheer Kalvi solutions for Science [English] Class 9 TN Board chapter 9 - Universe")
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Solutions for Chapter 9: Universe
Below listed, you can find solutions for Chapter 9 of Tamil Nadu Board of Secondary Education Samacheer Kalvi for Science [English] Class 9 TN Board.
Samacheer Kalvi solutions for Science [English] Class 9 TN Board 9 Universe Exercise [Page 111]
Choose the correct answer.
Who proposed the heliocentric model of the universe?
Tycho Brahe
Nicolaus Copernicus
Ptolemy
Archimedes
Which of the following is not a part of outer solar system?
Mercury
Saturn
Uranus
Neptune
Ceres is a______.
Meteor
Star
Planet
Astroid
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?
4
5
2
3
The Big Bang occurred ______ years ago.
13.7 billion
15 million
15 billion
20 million
The speed of Sun in km/s is______.
The rotational period of the Sun near its poles is ______.
India’s first satellite is ______.
The third law of Kepler is also known as the Law of ______.
The number of planets in our Solar System is ______.
State whether true or false. If false, correct the statement.
ISS is a proof for international cooperation-
True
False
State whether true or false. If false, correct the statement.
Halley’s comet appears after nearly 67 hours.
True
False
State whether true or false. If false, correct the statement.
Satellites nearer to the Earth should have lesser orbital velocity.
True
False
State whether true or false. If false, correct the statement.
Mars is called the red planet.
True
False
Answer briefly.
What is solar system?
Define orbital velocity.
Define time period of a satellite.
What is a satellite? What are the two types of satellites?
Write a note on the inner planets.
Write about comets.
State Kepler’s laws.
What factors have made life on Earth possible?
Answer in detail.
Give an account of all the planets in the solar system.
Discuss the benefits of ISS.
Write a note on orbital velocity
Conceptual questions.
Why do some stars appear blue and some red?
How is a satellite maintained in nearly circular orbit?
Why are some satellites called geostationary?
A man weighing 60 kg in the Earth will weigh 1680 kg in the Sun. Why?
Numerical problem.
Calculate the speed with which a satellite moves if it is at a height of 36,000 km from the Earth’s surface and has an orbital period of 24 hr (Take R = 6370 km) [Hint: Convert hr into seconds before doing calculation]
Numerical problem.
At an orbital height of 400 km, find the orbital period of the satellite.
Solutions for 9: Universe
Samacheer Kalvi solutions for Science [English] Class 9 TN Board chapter 9 - Universe
Shaalaa.com has the Tamil Nadu Board of Secondary Education Mathematics Science [English] Class 9 TN Board Tamil Nadu Board of Secondary Education solutions in a manner that help students grasp basic concepts better and faster. The detailed, step-by-step solutions will help you understand the concepts better and clarify any confusion. Samacheer Kalvi solutions for Mathematics Science [English] Class 9 TN Board Tamil Nadu Board of Secondary Education 9 (Universe) include all questions with answers and detailed explanations. This will clear students' doubts about questions and improve their application skills while preparing for board exams.
Further, we at Shaalaa.com provide such solutions so students can prepare for written exams. Samacheer Kalvi textbook solutions can be a core help for self-study and provide excellent self-help guidance for students.
Concepts covered in Science [English] Class 9 TN Board chapter 9 Universe are Geo Centric Theory, Heliocentric Model, Telescope, The Universe, Orbits of Artificial Satellites, Space Missions Away from Earth, Kepler’s Laws, International Space Station (ISS), Galaxy and Its Types, Stars and Their Types, The Sun, The Solar System, Other Heavenly Bodies of the Solar System, Artificial Satellites.
Using Samacheer Kalvi Science [English] Class 9 TN Board solutions Universe exercise by students is an easy way to prepare for the exams, as they involve solutions arranged chapter-wise and also page-wise. The questions involved in Samacheer Kalvi Solutions are essential questions that can be asked in the final exam. Maximum Tamil Nadu Board of Secondary Education Science [English] Class 9 TN Board students prefer Samacheer Kalvi Textbook Solutions to score more in exams.
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