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What is the Difference between Stars and Planets
Answer
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Stars |
Planets |
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Star is a celestial object which emits its own light |
Planet moves around the star in a fixed orbit |
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Stars twinkle |
Planets do not twinkle |
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Position of stars do not change |
Position of Planet Changes |
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Stars have very high temperatures |
Planets have low temperatures |
Meteors are not visible during the day time. Explain the reason.
Answer
Meteors are celestial bodies which revolve around the sun in their orbits.
These are the celestial bodies from the sky which we see as a bright streak of light that flashes across the sky during the night.
Meteors can only be seen due to their bright light.
But this bright light can not be seen during the day because the light produced by the sun is much more than that of the meteors.
Hence, the light of the meteors blends with the light of the sun and we are not able to see meteors during the day.
Explain how you can locate Sirius with the help of Orion
Answer
Before locating the Sirus, we need to identify Orion
Orion is in the shape of a big dipper.
It has 8 major stars - 3 stars appear in the belt and five stars appear to be arranged in form of a quadrilateral
Now,
Find 2 Stars at the end of the bowl of Ursa Major
Join a Line between them
Extend it towards North
This line will lead to a star which is not very bright. This star is the Pole Star.
What is the Difference between Artificial and Natural Satellite?
Answer
The Difference between Natural and Artificial Satellites is
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Natural Satellites |
Artificial Satellites |
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It is made by Nature |
It is made by humans |
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They are permanent |
They are temporary |
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They are not used for communication |
They are used for communication with the Earth |
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Example - Moon is the natural Satellite of the Earth |
Example - Aryabhat, INSAT, EDUSAT |
