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# Balbharati solutions for Maharashtra state board (SSC) Class 10 Science and Technology part 1 chapter 10 - Space Missions [Latest edition]

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## Chapter 10: Space Missions

#### Balbharati solutions for Maharashtra state board (SSC) Class 10 Science and Technology part 1 Chapter 10 Space Missions [Page 144]

Q 1.1 | Page 144

Fill in the blank and explain the statement with reasoning:

If the height of the orbit of a satellite from the earth surface is increased, the tangential velocity of the satellite will ......

Q 1.2 | Page 144

Fill in the blank and explain the statement with reasoning:

The initial velocity (during launching) of the Managalyaan, must be greater than ..............of the earth.

Q 2.1 | Page 144

State with reasons whether the sentence is  true or false.

If a spacecraft has to be sent away from the influence of earth’s gravitational field, its velocity must be less than the escape velocity.

Q 2.2 | Page 144

State with reasons whether the sentence is  true or false .

The escape velocity on the moon is less than that on the earth.

Q 2.3 | Page 144

State with reasons whether the sentence is  true or false .

A satellite needs a specific velocity to revolve in a specific orbit.

Q 2.4 | Page 144

State with reasons whether the sentence is  true or false .

If the height of the orbit of a satellite increases, its velocity must also increase.

Q 3.1 | Page 144

What is meant by an artificial satellite? How are the satellites classified based on their functions?

Q 3.2 | Page 144

What is meant by the orbit of a satellite? On what basis and how are the orbits of artificial satellites classified?

Q 3.3 | Page 144

Why are geostationary satellites not useful for studies of polar regions?

Q 3.4 | Page 144

What is meant by satellite launch vehicles? Explain a satellite launch vehicle developed by ISRO with the help of a schematic diagram.

Q 3.5 | Page 144

Why it is beneficial to use satellite launch vehicles made of more than one stage?

Q 4 | Page 144

Complete the following table.

Q 5.1 | Page 144

Solve the problem.

If mass of a planet is eight times the mass of the earth and its radius is twice the radius of the earth, what will be the escape velocity for that planet?

Q 5.2 | Page 144

Solve the problem.

How much time a satellite in an orbit at height 35780 km above earth's surface would take, if the mass of the earth would have been four times its original mass?

Q 5.3 | Page 144

Solve the problem.

If the height of a satellite completing one revolution around the earth in T seconds is h1 meter, then what would be the height of a satellite taking  $2\sqrt{2} T$ seconds for one revolution?

## Balbharati solutions for Maharashtra state board (SSC) Class 10 Science and Technology part 1 chapter 10 - Space Missions

Balbharati solutions for Maharashtra state board (SSC) Class 10 Science and Technology part 1 chapter 10 (Space Missions) include all questions with solution and detail explanation. This will clear students doubts about any question and improve application skills while preparing for board exams. The detailed, step-by-step solutions will help you understand the concepts better and clear your confusions, if any. Shaalaa.com has the Maharashtra State Board Maharashtra state board (SSC) Class 10 Science and Technology part 1 solutions in a manner that help students grasp basic concepts better and faster.

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Concepts covered in Maharashtra state board (SSC) Class 10 Science and Technology part 1 chapter 10 Space Missions are Space Missions, Artificial Satellite, Orbits of Artificial Satellites, High Earth Orbits : (Height from the earth’s surface > 35780 km), Medium Earth Orbit (height above the earth’s surface 2000 km to 35780 km), Low Earth Orbits (height above the earth’s surface: 180 km to 2000 km), Satellite Launch Vehicles, Space Missions Away from Earth, Moon Missions, Mars Missions, Missions to Other Planets, India and Space Technology, Space Debris and Its Management.

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