Space & Solar System Quiz Questions Answers : Science Quizzes

Space Science Quiz 
1. The planet Neptune, discovered in 1846 and yet to complete its circuit, will be back at the position where it was first observed until the year–
(A) 2001 (B) 2011
(C) 2021(D) 2031
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2. The planet Jupiter takes about ........................ to complete one revolution in its orbit around the Sun.
(A) 11.86 years (B) 248 years
(C) 84 years (D) 165 years
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3. The biggest star in our galaxy is–
(A) Epsilon Aurigae (B) Proxima Centauri
(C) Sirius (D) Sun
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4. The nearest star to Earth (excepting the Sun) in our galaxy is–
(A) Epsilon Aurigae (B) Proxima Centauri
(C) Sirius (D) None of the above
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5. Who was the first to observe Sun spots?
(A) Galileo (B) Halley
(C) Newton (D) None of these
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6. Why is it very difficult to observe the planet Mercury most of the time?
(A) It is too far away from the Earth
(B) The glare of the Sun usually keeps it hidden, it being too close to the Sun
(C) It lies away from the Earth’s orbit
(D) It revolves round the Sun such that it cannot be seen easily from the Earth
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7. Name the two planets which appear as ‘morning star’ in the eastern sky and ‘evening star’ in the western sky–
(A) Mars and Venus (B) Jupiter and Mars
(C) Saturn and Uranus (D) Mercury and Venus
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8. Name the two planets lying between the Sun and the Earth.
(A) Mercury and Mars (B) Venus and Mars
(C) Mercury and Venus (D) Jupiter and Saturn
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9. Who was the first to determine that the day on the Mars was, like ours, roughly twenty-four hours long?
(A) Isaac Newton (B) Copernicus
(C) Giordano Bruno (D) Christian Huygens
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10. How long does a Sun ray take to travel from the Sun to the Earth?
(A) 400 seconds (B) 450 seconds
(C) 500 seconds (D) 600 seconds
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11. Which of the following statements in regard to the planets of the Solar System is not correct?
(A) All the planets are made of rock and metal
(B) All the planets move round the Sun from West to East
(C) All the planets revolve round the Sun in different elliptical orbits
(D) All the planets shine because they reflect the light of the Sun
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12. Titan is the natural satellite of the planet–
(A) Neptune (B) Mercury
(C) Saturn (D) Venus
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13. What is the distance which the Earth covers in its one complete revolution around the Sun?
(A) 5.8 × 106 km (B) 9.4 × 108 km
(C) 15.0 × 1010 km (D) 28.8 × 106 km
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14. Which of the following planets is the biggest?
(A) Jupiter (B) Mercury
(C) Earth (D) Saturn
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15. Which of the following planets is farthest from the Sun?
(A) Mercury (B) Mars
(C) Neptune (D) Uranus
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16. What percentage of the irregular surface of the Earth is covered with water?
(A) 50 percent (B) 60 percent
(C) 70 percent (D) 80 percent
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17. The first planet to be discovered with a telescope was–
(A) Mars (B) Uranus
(C) Saturn (D) Jupiter
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18. Which of the following types of motion of the Earth has not produced any ‘observable effect for centuries?
(A) Its motion in space along with the Sun and other members of the Solar System
(B) Its daily rotation on its axis
(C) Its annual revolution around the Sun
(D) Its precession (or conical motion on its axis)
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19. Which of the following is the group of terrestrial planets?
(A) Mercury, Earth, Mars, Jupiter (B) Mercury, Venus, Earth, Mars
(C) Mercury, Venus, Earth, Jupiter (D) Mercury, Venus, Jupiter, Saturn
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20. Which of the following planets has almost the same mass, size and density as the Earth?
(A) Venus (B) Mars
(C) Saturn (D) Uranus
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