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 is the name of the faint, outermost ring of Saturn discovered by the Voyager spacecraft? a) E Ring b) F Ring c) G Ring d) H Ring 2 / 30 2. Which space probe was the first to fly by Jupiter, Saturn, Uranus, and Neptune, providing detailed data on these gas giants and their moons? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 3 / 30 3. What is the state of Mercury's atmosphere? a) Thick and cloudy b) Thin and composed mainly of oxygen c) Almost nonexistent and composed of trace elements d) Similar to Earth's atmosphere 4 / 30 4. What is the layer of soil that contains organic matter, microorganisms, and plant roots, and is vital for supporting plant growth? a) Subsoil b) Bedrock c) Topsoil d) Regolith 5 / 30 5. What is the primary composition of objects found in the Oort Cloud? a) Rock and metal b) Ice and rock c) Gas and dust d) Hydrogen and helium 6 / 30 6. 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 7 / 30 7. What is the name of the spacecraft launched by the European Space Agency (ESA) and the Japan Aerospace Exploration Agency (JAXA) to study Mercury? a) Rosetta b) BepiColombo c) Dawn d) Akatsuki 8 / 30 8. What are auroras commonly known as when seen in the Northern Hemisphere? a) Southern Lights b) Equatorial Lights c) Northern Lights d) Polar Lights 9 / 30 9. Which moon of Jupiter is the largest in the solar system? a) Europa b) Ganymede c) Io d) Callisto 10 / 30 10. 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 11 / 30 11. What is tidal locking? a) The synchronization of rotation and orbit of a moon b) The synchronization of rotation and orbit of a planet c) The synchronization of rotation and orbit of a star d) The synchronization of rotation and orbit of a comet 12 / 30 12. What is the primary component of Venus's atmosphere? a) Nitrogen b) Oxygen c) Carbon dioxide d) Methane 13 / 30 13. What is the name of the largest impact crater on the Moon, located on the lunar near side and visible from Earth? a) Tycho b) Copernicus c) Mare Orientale d) South Pole–Aitken Basin 14 / 30 14. Which ground-based observatory is located in Chile's Atacama Desert and is known for its array of radio telescopes used for millimeter-wave astronomy? a) ALMA (Atacama Large Millimeter/submillimeter Array) b) VLT (Very Large Telescope) c) Gran Telescopio Canarias (GTC) d) Subaru Telescope 15 / 30 15. Which region of the Sun is responsible for the acceleration of the solar wind? a) Core b) Radiative Zone c) Convective Zone d) Corona 16 / 30 16. What is the name of the volcanic moon of Jupiter known for its intense volcanic activity? a) Europa b) Callisto c) Ganymede d) Io 17 / 30 17. Which planet in the Solar System is known for its massive dust storms that can engulf the entire planet for months? a) Jupiter b) Saturn c) Mars d) Venus 18 / 30 18. Which moon of Jupiter is known for its heavily cratered surface, indicating its ancient geological history and lack of significant geological activity? a) Ganymede b) Europa c) Io d) Callisto 19 / 30 19. 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 20 / 30 20. What effect does tidal heating have on celestial bodies? a) It causes the elongation and deformation of the body b) It causes the loss of the body's atmosphere c) It causes heating and melting of the body's interior d) It causes earthquakes and volcanic eruptions 21 / 30 21. What is the Earth's mantle primarily composed of? a) Iron and nickel b) Silicon and oxygen c) Calcium carbonate d) Water and ice 22 / 30 22. What is the most prominent feature of Neptune's atmosphere? a) Great Red Spot b) Hexagonal storm c) Great Dark Spot d) Polar vortex 23 / 30 23. What is the name of the second-largest moon of Pluto? a) Styx b) Nix c) Kerberos d) Hydra 24 / 30 24. Which spacecraft provided close-up images of Jupiter and its moons in the 1990s? a) Cassini b) Voyager c) Galileo d) New Horizons 25 / 30 25. What geological feature on Mars is believed to be the largest volcano in the Solar System by volume and is named after the Roman god of war? a) Olympus Mons b) Tharsis Montes c) Elysium Mons d) Pavonis Mons 26 / 30 26. What is the name of the largest moon of Jupiter? a) Europa b) Ganymede c) Callisto d) Io 27 / 30 27. What is the biosphere? a) The layer of the Earth's atmosphere where living organisms exist b) The rocky outer layer of the Earth c) The layer of the Earth's mantle containing molten rock d) The zone on Earth where life exists, including land, water, and air 28 / 30 28. How does the atmospheric pressure at the surface of Venus compare to Earth's? a) It is much lower b) It is slightly lower c) It is about the same d) It is much higher 29 / 30 29. Which space probe was the first to fly by Jupiter and Saturn and provided close-up images of their moons, including Io's volcanic activity? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 30 / 30 30. Which comet is known for its bright appearance and greenish coma due to the presence of cyanogen and diatomic carbon? a) Halley's Comet b) Comet Hale-Bopp c) Comet Shoemaker-Levy 9 d) Comet Hyakutake Please provide accurate information so we can send your Achievement Certificate by mail. NameEmailPhone Number Your score is Share your achievement! LinkedIn Facebook Twitter 0% Restart Test Please provide your feedback. Thank you for your valuable feedback. Send feedback Buy Solar System MCQ PDF for Offline Study