Motions Of The Earth
Four Seasons as seen from Northern Hemisphere |
NCERT Chapter Q & A and Other Short Questions and Answers
Q1: What is the angle of inclination of the earth’s axis with its orbital plane?
Answer: The angle of inclination of the earth's axis with its orbital plane is 66½°
Q2: Define rotation and revolution.
Answer: Rotation: It is the movement of the earth on its axis.
Revolution: It is the movement of the earth around the sun in its orbit.
Q3: Name the two movements of the earth.
Answer: Rotation and Revolution.
Q4: The Earth moves like a spinning top. What is this movement called? What does it result in?
Answer: It is called rotation. It results in the formation of day and night.
Q5: In which direction the earth rotates? How much time does it take complete one rotation?
Answer: West to East. It takes 24 hours to complete one rotation.