NCERT Class 6 Chapter 3 Social Science Geography Motions of the Earth MCQ

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1. Motion of the earth on its axis in about 24 hours is called

A. revolution

B. rotation

C. both (a) and (b)

D. none of these

2. The axis of the earth is a/an……………..

A. imaginary line

B. straight line

C. curved line

D. real line.

3. The sun rays are vertical over the during __

A. Tropic of Capricorn, equinox

B. Tropic of cancer, winter solstice

C. Tropic of Capricorn, the summer solstice

D. Tropic of cancer, the summer solstice

4. Motion of the earth around the sun is known as

A. revolution

B. rotation

C. both (a) and (b)

D. none of these

5. In Australia Christmas is celebrated in the season:

A. Winter

B. Summer

C. Spring

D. Autumn

6. What is orbital plane?

A. Plane formed by the axis

B. Plane formed by the orbit

C. Both (a) and (b)

D. None of these

7. The time of the day just before sunrise is known as

A. Noon

B. Morning

C. Dusk

D. Dawn

8. Which one of the following is the source of light on the earth?

A. The moon

B. The sun

C. The satellite

D. The space

9. The circle that divides the globe into day and night is called

A. circle of darkness

B. circle of day and night

C. circle of illumination

D. none of these

10. A mean solar day is

A. The average time is taken for Earth to rotate on its axis: 24 hours

B. The time is taken for the Earth to go once around the Sun

C. A day when the sun emits a lot of dangerous particles

D. The time is taken for the Earth to go once around the Sun

11. The time taken by the earth to complete one rotation around its axis is…………………

A. 24 hours

B. 12 hours

C. 36 hours

D. 18 hours.

12. In the revolution, motion of the Earth around the Sun in its orbit completed in :

A. 365 days

B. 366 days

C. 365 ¼days

D. 367 days

13. The period of one rotation of the earth is known as

A. the sun day

B. the moon day

C. the earth day

D. none of these

14. What is orbital plane?

A. Plane formed by the axis

B. Plane formed by the orbit

C. Both (a) and (b)

D. None of these

15. What would have happened if the earth did not rotate?

A. Cold conditions on earth’s half portion

B. Warm conditions on earth are another half portion

C. No life possible in such extreme conditions

D. All of these

16. Leap day is always added to the month of

A. February

B. March

C. January

D. December

17. How many Solstices are there in every year

A. 2

B. 3

C. 5

D. 4

18. A year with 366 days is called

A. leap year

B. normal year

C. both (a) and (b)

D. none of these

19. Direct rays of the Sun fall on the equator on:

A. 21 March

B. 21 June

C. 22 December

D. 21 September

20. The axis of Earth is inclined:

A. 23 ½°

B. 66 ½°

C. 22 ½°

D. 10°

21. Why do seasons change on the earth?

A. Due to changes in the position of the earth around the sun

B. Due to no change in the earth’s position

C. Both (a) and (b)

D. None of the above

22. When do the longest day and the shortest night occur in the northern hemisphere?

A. June 21

B. September 23

C. December 22

D. March 21

23. The axis of the earth which is an imaginary line, makes an angle of 66º with its

A. Rotational plane

B. Orbital plane

C. Revolution Plane

D. Southern plane

24. How much time does the earth take time to complete its rotation?

A. 22

B. 23

C. 24

D. 20

25. When do equinoxes occur on the earth?

A. March 21

B. September 23

C. Both (a) and (b)

D. None of these