Natural and Artificial Satellites

Q. What is the time taken by light to travel fromm sun to earth and moon to earth??

Q.

What is the minimum distance between two geostationary satellites?

Q.

Which planet has the largest number of satellites ?

1. Venus

2. Mercury

3. Saturn

4. Earth

Q.

The time period of a geo-stationary satellite is

1. $24\mathrm{hrs}$

2. $6\mathrm{hrs}$

3. $365days$

4. none of these

Q. Satellites revolve around in solar system.

1. planets
2. sun
3. stars
4. moon

Q.

Moon rotates on its own axis as it revolves around the earth. How many rotations does it make in one revolution?

1. 2

2. 30

3. 1

4. 15

Q.

How long does it take for light from the sun to reach Earth?

1. 5 min

2. 1 minute

3. 8 minutes

4. 24 hours

Q. We always see the same side of the moon from the Earth because of.

1. lunar locking
2. binary locking
3. tidal locking

Q. Name the largest and the smallest satellites.

Q.

Geo stationary satellite is __________.

1. a polar satellite

2. a non–polar satellite

3. a satellite of time period equal to time period of rotation of the Earth.

4. Both (B) and (C)

Q.

We are able to see only one side of the moon. Why? [3 MARKS]

Q. In how much time does moonlight reach the earth?

1. 13 seconds
2. 1.3 seconds
3. 13 minutes
4. 1.3 minutes

Q. List out the feature of sun synchronous satellites.

Q. Which was India's first artificial satellite launched into space?

1. Sputnik
2. Aryabhatta
3. EDUSAT
4. Bhaskara

Q. Artificial satellites cannot be used for which of the following?

1. Weather forecasting
2. Remote sensing
3. Radio and TV broadcasting
4. Balancing the earth's gravity

Q. Which of the following is a celestial body that revolves around a planet?

1. Satellite
2. Star
3. Comet
4. Asteroid

Q. Which of the following are the applications of artificial satellites?

1. Weather forecasting
2. Telecommunication
3. Remote sensing
4. Locating ground water