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प्रश्न
What are the effects of rotation and revolution?
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उत्तर
- Effects of Rotation:
- It is the spinning movement of the Earth on its axis
- The time taken by the Earth to complete one rotation is called a day.
- The rotation of the Earth causes day and night, As the Earth is spherical in shape, only one half of it is illuminated by the Sun at a time.
- The other half remains dark.
- The illuminated portion of the Earth experiences day, whereas the darkened part of the Earth experiences night.
- Effects of Revolution:
- It is the movement of the Earth around the Sun on its elliptical path.
- The Earth takes 36514 days to complete one revolution.
- It revolves around the Sun at a speed of 30 km per second.
- The remaining quarter-day is added once in every four years in the month of February.
- The inclination of the Earth on its axis and its revolution around the Sun causes different seasons.
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संबंधित प्रश्न
Study the picture and answer the questions that follow.
(a) What is meant by the Solar System?
(b) Give two differences between a planet and a star.
(c) Name the planets known as terrestrial planets.
(d) Give two advantages the earth has over other planets.
(e) What are satellites?
Which planet is known as ‘blue planet’?
Distinguish between the following pair.
Periodical and Non-periodical comets
Which planet has the largest number of satellites?
Or
Name the largest known satellite of any planet.
What do you understand by ‘Terrestrial Planet’?
Which of the statement(s) is/are true?
Statement I: Earth is called a watery planet.
Statement II: The rotation of the Earth causes seasons.
Distinguish between Rotation and Revolution?
The Earth is the _______ planet from the sun.
Day and night are caused due to the earth’s _______
Only ______ percent of water is fresh on earth.
