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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Name the first artificial satellite sent by Russia in space. - Science and Technology 1

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प्रश्न

Name the first artificial satellite sent by Russia in space.

एक शब्द/वाक्यांश उत्तर

उत्तर

Sputnik

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
2019-2020 (March) Set 1

संबंधित प्रश्‍न

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


Considering first correlation, complete the second.
Hubble telescope : At 569 km above the earth’s surface
Orbit of Hubble telescope : .............................


Mahendra and Virat are sitting at a distance of 1 metre from each other. Their masses are 75 kg and 80 kg respectively. What is the gravitational force between them? G = 6.67 x 10-11 Nm2/kg


Write the proper name of the orbits of satellites shown in the following figure with their height from the earth’s surface.


A group of students from COEP Pune sent a small satellite _______ through ISRO in 2016.


The function of a satellite launcher is based on Newton's second law of motion.


What is Medium Earth Orbit?


Observe the figure and write the answers.

  1. Name the outer orbit.
  2. Which satellites revolve in low earth orbits?
  3. Which various orbits are given in the figure?
  4. Give an example of a launch vehicle based on Newton’s third law.

Note the relationship between the entries in all the three columns in the table and rewrite the table.

Column-1
(Location)
Column-2
Height from the earth’s surface (km)
Column-3
g (m/s2)
Earth’s surface (average) 8.8 0.225
Mount Everest 36.6 9.81
Maximum height ever reached by manmade balloon 400 9.8
Orbit of a typical weather satellite 35700 9.77
Orbit of communication satellite 0 8.7

Write a note on orbital velocity


How is a satellite maintained in nearly circular orbit?


Why are some satellites called geostationary?


Give scientific reasons.

The geostationary satellite is not useful in the study of polar regions.


Geostationary satellites are not useful for studies of the polar region.


Calculate the time taken by a satellite for one revolution revolving at a height of 6400 km above the earth's surface with a velocity of 5.6 km/s.


The height of medium earth orbit above the surface of the earth is ______.


The orbit of a satellite is exactly 35780 km above the earth's surface and its tangential velocity is 3.08 km/s.

How much time the satellite will take to complete one revolution around the earth?

(Radius of earth = 6400 km.)


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