1. The sun, the moon, and all those objects shining in the night sky are called ........
a) Planet
b) Asteroids
c) Meteoroids
d) Celestial bodies
Answer. d) Celestial bodies
2. Some celestial bodies are very big and hot. They are made up of gases. They are -----
a) Planets
b) Stars
c) Meteoroids
d) Satellites
Answer. b) Stars
3. The study of celestial objects and associated phenomena is called?
a) Philosophy
b) Astronomy
c) Astrology
d) Geometry
Answer. b) Astronomy
4. The various shapes of the bright part of the moon as seen during a month are called?
a) Full Moon
b) New Moon
c) Bright Moon
d) phases of the moon
Answer. d) phases of the moon
5. What is the distance between Sun and Earth?
a) 15 million km
b) 150 million km
c) 15 billion km
d) 150 billion km
Answer. b) 150 million km
6. Which of the following is the nearest star to the sun?
a) Proxima Centauri
b) Alpha Centauri
c) North Star
d) Polaris
Answer. a) Proxima Centauri
7. The stars form a group that has a recognizable shape called
a) Galaxy
b) Universe
c) Solar System
d) constellation
Answer. d) constellation
8. The Sun and the celestial bodies which revolve around it are called
a) Galaxy
b) Universe
c) Solar System
d) constellation
Answer. c) Solar System
8. How many planets there are in our solar system?
a) 7
b) 8
c) 9
d) 10
Answer. b) 8
9. Which planet is nearest to the Sun?
a) Mercury
b) Earth
c) Jupiter
d) Neptune
Answer. a) Mercury
10. Which planet is farthest from the Sun?
a) Mercury
b) Earth
c) Jupiter
d) Neptune
Answer. d) Neptune
11. Which planet is the smallest in our solar system?
a) Mercury
b) Venus
c) Mars
d) Neptune
Answer. a) Mercury
12. Which of the following planet does not have any moon [ natural settelite]?
a) Mercury
b) Earth
c) Mars
d) Neptune
Answer. a) Mercury and Venus do not have any moons
13. Which planet is very close to the earth?
a) Mercury
b) Venus
c) Mars
d) moon
Answer. b) Venus
14. Which is the brightest planet in the night sky?
a) Mercury
b) Venus
c) Mars
d) moon
Answer. Answer. b) Venus
;
15. Which planet rotates from east to west?
a) Mercury
b) Venus
c) Uranus
d) Both Venus and Uranus
Answer. d) Both Venus and Uranus; Only Venus and Uransi planets of our solar system rotate east to west and the rest rotate from west to east.
16. Which of the following is responsible for the change of seasons on Earth?
a) axis of rotation of the Earth
b) Revolution of earth on an elongated orbit
c) Earth tilt
d) right distance from the Sun
Answer. c) Earth tilt
17. Which planet is also known as a red planet?
a) Mercury
b) Venus
c) Uranus
d) Mars
Answer. d) Mars
18. Which planet is the largest planet in our solar system?
a) Saturn
b) Uranus
c) Jupiter
d) Earth
Answer. c) Jupiter
19. Which planet has the largest number of satellites?
a) Saturn
b) Uranus
c) Jupiter
d) Earth
Answer. c) Jupiter
20. Which planet is the least dense among all the planets in our solar system?
a) Saturn
b) Uranus
c) Jupiter
d) Earth
Answer. a) Saturn
21. Which planet is not part of the inner planets?
a) Earth
b) Jupiter
c) Mars
d) Venus
Answer. b) Jupiter
Inner planets: Mercury, Venus, Earth, and Mars
Outer Plantes: Jupiter, Saturn, Uranus, and Neptune
22. Which planet is the sixth nearest to the sun?
a) Mars
b) Jupiter
c) Saturn
d) Uranus
Answer. c) Saturn
23. There is a large gap between the orbits of Mars and Jupiter. This gap is occupied by a large number of small objects that revolve around the Sun. These are ---
a) Comets
b) Asteroids
c) Meteroids
d) Rock debris
Answer. b) Asteroids
24. Which celestial body appears generally as a bright head with a long tail in our solar system?
a) Comets
b) Asteroids
c) Meteroids
d) Rock debris
Answer. a) Comets
25. The celestial bodies are usually small object that occasionally enters the earth’s atmosphere is termed?
a) Comets
b) Asteroids
c) Meteroids
d) Rock debris
Answer. c) Meteroids
26. Which of the following is NOT a member of the solar system?
a) An asteroid
b) A satellite
c) A constellation
d) A comet
Answer. c) A constellation
27 . Which of the following is NOT a planet of the sun?
a) Sirius
b) Mercury
c) Saturn
d) Earth
Answer. a) Sirius is the brightest star in the night sky.
28. "Phases of the moon" occur because
a) we can see only that part of the moon that reflects light towards us.
b) our distance from the moon keeps changing.
c) the shadow of the Earth covers only a part of the moon’s surface.
d) the thickness of the moon’s atmosphere is not constant.
Answer. a) we can see only that part of the moon that reflects light toward us.
29. Which one of the following represents the inner planets?
a) Planets between the sun and the earth
b) Planets between the sun and the belt of asteroids
c) Planets in the gaseous state
d) Planets without satellite(s)
Answer. b) Planets between the sun and the belt of asteroids
30. Life on the earth appeared around how many years before the present?
a) 13.7 billion
b) 3.8 million
c) 4.6 billion
d) 3.8 billion
Answer. d) 3.8 billion
31. The planet known as the “Earth’s Twin” is
a) Jupiter
b) Saturn
c) Venus
d) Mars
Answer. c) Venus
32. Which is the third nearest planet to the sun?
a) Venus
b) Earth
c) Mercury
d) Mars
Answer. b) Earth
33. All the planets move around the sun in a
a) Circular path
b) Rectangular path
c) Elongated path
d) Linear Path
Answer. c) Elongated path
34. The Pole Star indicates the direction to the
a) South
b) North
c) East
d) West
Answer. b) North
35. Asteroids are found between the orbits of
a) Saturn and Jupiter
b) Mars and Jupiter
c) The Earth and Mars
d) The earth and Venus
Answer. b) Mars and Jupiter
36. A huge system of stars is called
a) Universe
b) Galaxy
c) Constellation
d) Black hole
Answer. b) Galaxy
37. Ursa Major is the name of?
a) Star
b) Galaxy
c) Constellation
d) Planet
Answer. c) Constellation;
38. Big bear, Ursa Major, Orion, Cassiopeia, and Leo Major are names of?
a) Star
b) Galaxy
c) Constellation
d) Planet
Answer. c) Constellation
39. Which planet is known as the "morning star" or the "evening star"?
a) Mercury
b) Earth
c) Venus
d) Mars
Answer. c) Venus
40. Which planet has the biggest moon in the solar system?
a) Saturn
b) Jupiter
c) Uranus
d) Neptune
Answer. b ) Jupiter
41. Which is the biggest moon in the solar system?
a) Ganymede
b) Titan
c) Callisto
d) Earth's moon
Answer. a) Ganymede is the largest moon in our solar system; Titan ( Saturn) is the second largest moon in our solar system. Callisto (Jupiter ) is the third largest moon in our solar system.
42. Which one of the following is the moon of Mars
a) Callisto
b) Phobos
c) Deimos
d) Both b & c
Answer. d) Both b & c
43. Which planet/planets have rings around them?
a) Saturn and Jupiter
b) Uranus and Neptune
c) Saturn
d) All of the above
Answer. d) All of the above
44. Which planet is known as the "Green planet" in our solar system?
a) Earth
b) Jupiter
c) Saturn
d) Uranus
Answer. d) Uranus
45. Outermost layer of the Sun's atmosphere is:
a) Photosphere
b) Chromosphere
c) Corona
d) Crust
Answer. c) Corona
46. Innermost layer of the Sun's atmosphere is:
a) Photosphere
b) Chromosphere
c) Corona
d) Radioactive Zone
Answer.d) Radioactive Zone
47. Which planet takes the shortest time to rotate in our solar system?
a) Mercury
b) Neptune
c) Jupiter
d) Venus
Answer. c) Jupiter; 9 hours 55 minus and 30 second
48. Which planet takes the longest time to rotate in our solar system?
a) Mercury
b) Neptune
c) Jupiter
d) Venus
Answer. d) Venus; 243 days
49. Which planet is made up of thick clouds of Sulfuric acid?
a) Mercury
b) Neptune
c) Jupiter
d) Venus
Answer. d) Venus has a white and yellowish thick cloud comprised of sulfuric acid, which is why it is also called a Veiled Planet.
50. Which planet is also known as the "Yellow Planet" in our solar system?
a) Mercury
b) Neptune
c) Jupiter
d) Venus
Answer. d) Venus
51. Which planet is the hottest planet in our solar system?
a) Mercury
b) Mars
c) Jupiter
d) Venus
Answer. d) Venus
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