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प्रश्न
What are the effects of rotation and revolution?
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?
How many planets are there in the Solar System?
Which planet has only one satellite?
Give a reason for the following:
Earth and its Moon are called a double planet.
Name the following:
Two planets which are farther from the sun than the Earth.
Give reasons for the following:
No life is possible on Saturn.
Why is Neptune the coldest planet of the Solar System?
Who am I?
I turn around myself and revolve around the sun.
Only ______ percent of water is fresh on earth.
The Tropic of Cancer faces the Sun directly on ______.
