Earth in the Solar System
Chapter No. 9 Test No. 1
1. The ___________ is huge sphere of burning gases.
ⓐ Cylinder ⓑ Earth ⓒ Moon ⓓ Sun
2. The sun is a_________.
ⓐ Galaxy ⓑ Moon ⓒ Star ⓓ ball
3. The sun emits:
ⓐ Light ⓑ Heat ⓒ Both a & b ⓓ None of these
4. The Earth and the Moon, other planets, comets and asteroids etc. revolve around the sun due to the ___________of the sun.
ⓐ Center ⓑ Gravity ⓒ Magnetic field ⓓ Solar system
5. The sun is the __________ of solar system.
ⓐ Power station ⓑ Part ⓒ Center ⓓ Planet
6. The closest star to Earth is the _________.
ⓐ Mercury ⓑ Sun ⓒ Moon ⓓ None of these
7. Solar system consists of all the planets which ______ around the sun.
ⓐ Runs away ⓑ Close ⓒ Revolves ⓓ None of these
8. The first planet that revolves closest to the sun is______.
ⓐ Jupiter ⓑ Venus ⓒ Earth ⓓ Mercury
9. The circular path of a planet around the sun is called a/an______.
ⓐ Solar system ⓑ Planets ⓒ Both a & b ⓓ Orbit
10. The time taken by a planet to complete one orbit is called a/an ___period.
ⓐ Time ⓑ Solar ⓒ Orbital ⓓ All of these
11. ________ is the largest planet in the solar system.
ⓐ Venus Jupiter Neptune Uranus
12. ______ is the brightest object appearing in the sky after the sun is the Moon.
ⓐ Venus Jupiter Neptune Uranus
13. The third biggest thing appearing in the sky after the sun and moon is _____.
ⓐ Venus Jupiter Neptune Uranus
14. The natural satellites of the Earth are _______.
ⓐ Sun ⓑ Jupiter ⓒ Moon ⓓ All of these
15. Moon complete one revolution around the Earth is about _______days.
ⓐ 28.5 ⓑ 29.5 ⓒ 30.5 ⓓ None of these
16. The moon completes one round around earth in ______
ⓐ 27.3 ⓑ 28.3 ⓒ 29.3 ⓓ 30.3
17. The moon completes one round around earth in 27.3 days and since earth is also moving, so moon is completed for us in ______
ⓐ 28.5 ⓑ 29.5 ⓒ 30.5 ⓓ None of these
18. Among all the celestial bodies, ________ is the closest to the Earth.
ⓐ Jupitar ⓑ Mercury ⓒ Sun ⓓ Moon
19. The distance between Earth and Moon is about _______km.
ⓐ 284,000 ⓑ 384,000 ⓒ 484,000 ⓓ 584,000
20. The diameter of the moon is about _______km.
ⓐ 2,500 ⓑ 3,000 ⓒ 3,500 ⓓ None of thee
21. The ebb and flow of the ________in the sky is due to its rotation around Earth.
ⓐ Sun ⓑ Jupiter ⓒ Venus ⓓ Moon
22. On the first day of lunar month, the very narrow shape of Moon is known as______.
ⓐ Full moon ⓑ Badar ⓒ Crescent ⓓ Both a & b
23. Complete moon is called ______
ⓐ Full moon ⓑ Badar ⓒ Crescent ⓓ Both a & b
24. Life _______on the Moon.
ⓐ Exists ⓑ Does not exit ⓒ Already continue ⓓ Disappears
25. Water _____ on the Moon.
ⓐ Exists ⓑ Does not exist ⓒ Already continue ⓓ Disappears
26. The Moon has ______ atmosphere.
ⓐ Many ⓑ One ⓒ Two ⓓ no
27. All planets of solar system have moons except:
ⓐ Mercury ⓑ Venus ⓒ Both a & b ⓓ Jupiter
28. Which planets have maximum number of Moons?
ⓐ Jupiter ⓑ Saturn ⓒ Both a & b ⓓ None of these
Chapter No. 9 Test No. 2
29. What is/are the movement of earth
ⓐ Revolves around the sun ⓑ Rotates about its own axis ⓒ Both a & b ⓓ None of these
30. The axis is a/an _________ line that passes through the north and south poles of the Earth.
ⓐ Real ⓑ Imaginary ⓒ Zig zag ⓓ None of these
31. When earth is in front of the sun, it means that it is ______.
ⓐ Day ⓑ Night ⓒ Noon ⓓ No shadow
32. The earth completes one rotation around its axis in ________
ⓐ 24 hours ⓑ 30 days ⓒ 365 days ⓓ None of these
33. Day and night are due to ________ motion of the earth.
ⓐ Revolution ⓑ Rotational ⓒ Translatory ⓓ None of these
34. The earth rotates from ___________
ⓐ South to east ⓑ North to east ⓒ East to west ⓓ West to east
35. The sun rises in the east because earth rotates from
ⓐ South to east ⓑ North to east ⓒ East to west ⓓ West to east
36. The duration of day on different planets is ______
ⓐ Same ⓑ Equal ⓒ Different ⓓ 24 hrs
37. The Earth complete one revolution around the sun in about _______days.
ⓐ 27.3 ⓑ 29.5 ⓒ 365 ⓓ One
38. The period of 365 days is called ______ year.
ⓐ 12 ⓑ One ⓒ 365 ⓓ All of these
39. When sun rays fall vertically at the northern hemisphere, then the duration of day _______
ⓐ Increases ⓑ Decreases ⓒ Both at the same time ⓓ None of these
40 When the southern hemisphere of the earth receives slanting sun rays, the duration of day _____
ⓐ Increases ⓑ Decreases ⓒ Both at the same time ⓓ None of these
41. At which day/days the day and night are equal.
ⓐ 22 December ⓑ 21 March ⓒ 23 September ⓓ Both b & c
42. At which date has the longest day.
ⓐ 22 June ⓑ 21 March ⓒ 23 September ⓓ Both b & c
43. At which date has the shortest day.
ⓐ 22 December ⓑ 21 March ⓒ 23 September ⓓ Both b & c
44. At which date has the longest night.
ⓐ 22 December ⓑ 21 March ⓒ 23 September ⓓ Both b & c
45. At which date has the shortest night.
ⓐ 22 December ⓑ 22 June ⓒ 23 September ⓓ Both b & c
46. The annual rotation of the Earth and the tilt in its axis cause changes in_____.
ⓐ Motion ⓑ Season ⓒ Rotation ⓓ Revolution
47. When the Earth comes between the sun and the Moon, a shadow of the Earth is formed on the Moon and it looks dark, this called ________eclipse.
ⓐ Solar ⓑ lunar ⓒ Normal ⓓ High
48. When the moon comes between the Earth and the sun. Sun is hidden behind the Moon and a shadow of the moon falls on the Earth, it is called ________eclipse.
ⓐ Solar ⓑ Lunar ⓒ Normal ⓓ High
49. The gravity of which body keeps the planets and other celestial bodies together in the solar system?
ⓐ Jupiter ⓑ Earth ⓒ Sun ⓓ Moon
50. The Earth completes its rotation around the sun in 365 days. This period is called:
ⓐ Solar year ⓑ Solar month ⓒ Lunar month ⓓ Lunar year
51. Due to the annual revolution of Earth and tilt of its axis:
ⓐ Day and night are formed ⓑ Seasons change ⓒ Eclipses are formed ⓓ Shadow are formed
52. One the globe, in which part of the Earth is Pakistan situated?
ⓐ Northern hemisphere ⓑ Southern hemisphere ⓒ Equator ⓓ Half in northern and half in southern hemisphere
53. Which planet of solar system does not have any moon?
ⓐ Jupiter ⓑ Venus ⓒ Mars ⓓ Saturn