Home» Online Test » Astronomy » Solar System Online Test 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This 'Solar System Online Test' covers questions across all the topics related to our Solar System. Get fresh, new questions in each attempt. Total Questions: 30 Time Allotted: 30 minutes Passing Score: 50% Randomization: Yes Certificate: Yes Do not refresh the page! 👍 All the best! 1 / 30 1. What term refers to the fuzzy, glowing region surrounding the nucleus of a comet? a) Nucleus b) Coma c) Tail d) Ionosphere 2 / 30 2. Which moon of Mars is closer to the planet? a) Phobos b) Deimos c) Titan d) Ganymede 3 / 30 3. What is the Earth's mantle primarily composed of? a) Iron and nickel b) Silicon and oxygen c) Calcium carbonate d) Water and ice 4 / 30 4. Which moon of Neptune is known for its retrograde orbit, meaning it orbits the planet in the opposite direction of Neptune's rotation? a) Triton b) Nereid c) Proteus d) Larissa 5 / 30 5. What is the name of the largest known object in the asteroid belt between Mars and Jupiter? a) Eris b) Haumea c) Makemake d) Ceres 6 / 30 6. What is the primary component of Ceres's surface? a) Rock b) Ice c) Iron d) Silicates 7 / 30 7. Which Mars rover recently completed its mission, having operated on the Martian surface for over 15 years? a) Juno b) Curiosity c) Opportunity d) New Horizons 8 / 30 8. What is the approximate diameter of Jupiter's Great Red Spot? a) 10,000 kilometers (6,200 miles) b) 20,000 kilometers (12,400 miles) c) 30,000 kilometers (18,600 miles) d) 40,000 kilometers (24,800 miles) 9 / 30 9. What percentage of Earth's atmosphere is composed of nitrogen? a) Approximately 21% b) Approximately 50% c) Approximately 78% d) Approximately 90% 10 / 30 10. Which process is responsible for the movement of tectonic plates? a) Erosion b) Subduction c) Convection currents in the mantle d) Volcanic eruptions 11 / 30 11. Which moon of Neptune is the largest and seventh-largest moon in the solar system? a) Nereid b) Proteus c) Triton d) Larissa 12 / 30 12. What is the name of the largest moon of Neptune? a) Triton b) Proteus c) Larissa d) Naiad 13 / 30 13. How does the temperature on Mercury's surface vary? a) It is consistently hot b) It is consistently cold c) It varies widely between day and night d) It is mild and stable 14 / 30 14. Which moon of Saturn is known for its complex geological features, including cryovolcanoes, and the famous "tiger stripes" at its south pole? a) Titan b) Enceladus c) Miranda d) Triton 15 / 30 15. What is the name of the moon of Neptune with a highly eccentric orbit and retrograde motion? a) Nereid b) Triton c) Proteus d) Larissa 16 / 30 16. What is the term for the process by which sediments are deposited in a new location? a) Erosion b) Weathering c) Deposition d) Lithification 17 / 30 17. Which of the following is NOT a type of rock formed by the process of weathering and erosion? a) Sedimentary rock b) Igneous rock c) Metamorphic rock d) None of the above 18 / 30 18. What are auroras commonly known as when seen in the Northern Hemisphere? a) Southern Lights b) Equatorial Lights c) Northern Lights d) Polar Lights 19 / 30 19. What causes tidal forces? a) Gravitational pull from nearby stars b) Gravitational pull from the Moon and Sun c) Electromagnetic forces between celestial bodies d) Nuclear reactions within celestial bodies 20 / 30 20. What is the name of the spacecraft that became the first human-made object to reach interstellar space in 2012? a) Voyager 1 b) Voyager 2 c) New Horizons d) Cassini 21 / 30 21. What is the name of the moon of Pluto discovered in 2011 and named after the three-headed dog that guards the entrance to the underworld in Greek mythology? a) Charon b) Styx c) Nix d) Kerberos 22 / 30 22. What is the name of the group of four large moons of Jupiter discovered by Galileo? a) Galilean Moons b) Jovian Moons c) Olympian Moons d) Titan Moons 23 / 30 23. Which spacecraft conducted a flyby of Pluto, providing the first close-up images and data of the dwarf planet? a) Voyager 1 b) Voyager 2 c) New Horizons d) Cassini 24 / 30 24. Which planet in the Solar System exhibits extensive canyon systems, including Valles Marineris, which is considered the largest canyon in the Solar System? a) Mars b) Venus c) Earth d) Mercury 25 / 30 25. What is the name of the moon of Makemake discovered in 2015? a) S/2015 (136472) 1 b) Weywot c) MK2 d) Hiiaka 26 / 30 26. What is the largest moon of Pluto? a) Charon b) Styx c) Nix d) Kerberos 27 / 30 27. What is the approximate length of one day on Venus (one complete rotation)? a) 24 hours b) 58.6 Earth days c) 243 Earth days d) 365 Earth days 28 / 30 28. Which region of the Sun is responsible for the acceleration of the solar wind? a) Core b) Radiative Zone c) Convective Zone d) Corona 29 / 30 29. Which moon of Saturn is known for its active geysers erupting from its south pole, indicating the presence of a subsurface ocean? a) Titan b) Enceladus c) Miranda d) Triton 30 / 30 30. What is the name of the region in the Solar System where long-period comets originate, extending to the outermost reaches of the Sun's gravitational influence? a) Kuiper Belt b) Oort Cloud c) Asteroid Belt d) Scattered Disc Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score isShare your achievement! LinkedIn Facebook 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. 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