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 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 intense radiation belt surrounding Jupiter? a) Van Allen Belts b) Kuiper Belt c) Oort Cloud d) Magnetosphere 2 / 30 2. What is the primary greenhouse gas in Earth's atmosphere? a) Carbon dioxide b) Methane c) Water vapor d) Nitrous oxide 3 / 30 3. 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 4 / 30 4. Which Mars rover was launched in 2011 and has been exploring Gale Crater since its landing in 2012? a) New Horizons b) Juno c) Curiosity d) Opportunity 5 / 30 5. Which moon of Neptune is the largest and seventh-largest moon in the solar system? a) Nereid b) Proteus c) Triton d) Larissa 6 / 30 6. What is the name of the vast, heart-shaped region observed on Pluto's surface, which is informally named after the famous Disney character? a) Pluto's Heart b) Pluto's Valentine c) Pluto's Love d) Pluto's Tombaugh Regio 7 / 30 7. Which biome is characterized by long, cold winters and short, cool summers, with coniferous trees as the dominant vegetation? a) Taiga (Boreal Forest) b) Temperate Deciduous Forest c) Grassland (Prairie) d) Tundra 8 / 30 8. What is the primary component of Neptune's atmosphere? a) Nitrogen b) Hydrogen c) Methane d) Helium 9 / 30 9. What is the most notable feature of Uranus's atmosphere? a) Giant red spot b) Hexagonal storm c) Massive hurricane d) Strong ammonia odor 10 / 30 10. 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 11 / 30 11. Which mission is currently orbiting Mercury to study its surface and composition? a) Cassini b) Juno c) MESSENGER d) New Horizons 12 / 30 12. How do solar storms, like coronal mass ejections, affect the occurrence of auroras? a) They reduce the frequency of auroras b) They cause auroras to occur only at the poles c) They enhance and expand the visibility of auroras d) They eliminate auroras completely 13 / 30 13. Which space probe was the first to visit the asteroid belt and to make direct observations of Jupiter? a) Voyager 1 b) Voyager 2 c) Pioneer 10 d) Pioneer 11 14 / 30 14. How many rings does Uranus have? a) 5 b) 9 c) 13 d) 27 15 / 30 15. What is the name of the large, high-altitude vortex observed at Venus' south pole? a) Venus' Vortex b) Venus' Great Dark Spot c) Venus' South Polar Vortex d) Venus' North Polar Vortex 16 / 30 16. What is the name of the persistent high-pressure region in Jupiter's atmosphere that is characterized by its swirling anticyclonic storm? a) Saturn's Hexagon b) Venus' Vortex c) Jupiter's Great Red Spot d) Mars' Dust Storm 17 / 30 17. What is the main composition of objects found in the Kuiper Belt? a) Rock and metal b) Ice and rock c) Gas and dust d) Hydrogen and helium 18 / 30 18. Which effect of tidal forces is responsible for the gradual recession of the Moon from Earth and the lengthening of Earth's day? a) Tidal heating b) Tidal friction c) Tidal stretching d) Tidal locking 19 / 30 19. Which spacecraft, launched by NASA in 2006, conducted a historic flyby of Pluto in 2015, providing the first detailed images of the dwarf planet and its moons? a) Voyager 1 b) New Horizons c) Juno d) Cassini 20 / 30 20. What is the name of Kepler's second law of planetary motion? a) Law of Inertia b) Law of Conservation of Angular Momentum c) Law of Equal Areas d) Law of Gravitation 21 / 30 21. What is the name of the storm system observed at Saturn's south pole, which is similar to Jupiter's Great Red Spot but located at the pole? a) Saturn's Hexagon b) Saturn's South Polar Vortex c) Saturn's North Polar Vortex d) Saturn's Great Dark Spot 22 / 30 22. 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 23 / 30 23. Which moon of Uranus is the smallest and most irregularly shaped, with a surface marked by numerous grooves and cliffs? a) Titan b) Enceladus c) Miranda d) Triton 24 / 30 24. Which spacecraft was the first to directly measure the solar wind? a) Apollo 11 b) Voyager 1 c) Pioneer 10 d) Mariner 2 25 / 30 25. Which moon of Uranus is known for its heavily cratered surface and bright, icy terrain? a) Oberon b) Miranda c) Ariel d) Umbriel 26 / 30 26. 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 27 / 30 27. How many moons does Mars have? a) 1 b) 2 c) 3 d) 4 28 / 30 28. What is the name of the iconic long-lasting storm on Jupiter? a) Great White Spot b) Great Blue Spot c) Great Green Spot d) Great Red Spot 29 / 30 29. 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) 30 / 30 30. 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 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 Share the above MCQs: Click to share on Facebook (Opens in new window) Facebook Click to share on WhatsApp (Opens in new window) WhatsApp Click to share on X (Opens in new window) X Click to share on LinkedIn (Opens in new window) LinkedIn Click to share on Reddit (Opens in new window) Reddit