EASY
10th Maharashtra Board
IMPORTANT
Earn 100

How many natural satellites does the earth have?

Important Questions on Space Missions

EASY
10th Maharashtra Board
IMPORTANT
Which types of telescopes are orbiting around the earth? Why it is necessary to put them in space?
EASY
10th Maharashtra Board
IMPORTANT
If the height of the orbit of a satellite from the earth surface is increased, the tangential velocity of the satellite will _____.
EASY
10th Maharashtra Board
IMPORTANT
The initial velocity (during launching) of the Mangalyaan must be greater than _____ of the earth.
EASY
10th Maharashtra Board
IMPORTANT
State with reasons whether the following sentences are 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.
MEDIUM
10th Maharashtra Board
IMPORTANT
State with reasons whether the following sentences are true or false
The escape velocity on the moon is less than that on the earth.
EASY
10th Maharashtra Board
IMPORTANT
State with reasons whether the following sentences are true or false.
A satellite needs a specific velocity to revolve in a specific orbit.
EASY
10th Maharashtra Board
IMPORTANT
State with reasons whether the following sentences are true or false.
If the height of the orbit of a satellite increases, its velocity must also increase.
MEDIUM
10th Maharashtra Board
IMPORTANT
What is meant by an artificial satellite? How are the satellites classified based on their functions?