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 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 2 / 30 2. Which moon of Saturn exhibits a prominent equatorial ridge that encircles its entire circumference, giving it a distinct walnut-like shape? a) Titan b) Enceladus c) Mimas d) Iapetus 3 / 30 3. What is the estimated total number of icy bodies in the Oort Cloud? a) Thousands b) Millions c) Billions d) Trillions 4 / 30 4. What is the average surface temperature of Pluto? a) -200°C (-328°F) b) -100°C (-148°F) c) 0°C (32°F) d) 100°C (212°F) 5 / 30 5. What is the name of the moon of Haumea that orbits within its elongated shape? a) Hi'iaka b) Namaka c) Mo'o d) Pele 6 / 30 6. Which moon of Mars is closer to the planet? a) Phobos b) Deimos c) Titan d) Ganymede 7 / 30 7. What is the name of the valley network system on Mars that suggests past water erosion? a) Valles Marineris b) Elysium Mons c) Hellas Planitia d) Noctis Labyrinthus 8 / 30 8. Which type of tail of a comet is composed of ionized gas and is pushed away from the Sun by the solar wind? a) Dust tail b) Ion tail c) Plasma tail d) Gas tail 9 / 30 9. Which moon of Jupiter is known for its bright, highly reflective surface and its distinctive grooved terrain? a) Io b) Europa c) Ganymede d) Callisto 10 / 30 10. Which meteorite is composed mainly of iron and nickel and often exhibits a characteristic Widmanstätten pattern upon etching? a) Allende b) Hoba c) Canyon Diablo d) Tunguska 11 / 30 11. Which Apollo mission was the last to land humans on the Moon's surface? a) Apollo 14 b) Apollo 15 c) Apollo 16 d) Apollo 17 12 / 30 12. What is the term for the phase of the Moon when only a small portion of its surface is illuminated, appearing as a thin crescent? a) Full Moon b) New Moon c) Waning Gibbous d) Waxing Crescent 13 / 30 13. 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 14 / 30 14. Which moon of Jupiter is thought to have a subsurface ocean beneath its icy crust, potentially harboring conditions suitable for life? a) Io b) Europa c) Ganymede d) Callisto 15 / 30 15. Which of the following is NOT a type of plate boundary? a) Divergent boundary b) Transform boundary c) Convergent boundary d) Isolated boundary 16 / 30 16. Which feature is the largest impact crater on Mercury? a) Caloris Basin b) Hellas Basin c) Tycho Crater d) Mare Imbrium 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. What is the name of the phenomenon where a planet or moon passes directly between a star and the observer, causing a temporary decrease in the star's brightness? a) Solar eclipse b) Lunar eclipse c) Transit d) Occultation 19 / 30 19. 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 20 / 30 20. What is the name of the large, high-altitude vortex observed at Venus' south pole? a) Saturn's Hexagon b) Venus' Vortex c) Venus' South Polar Vortex d) Venus' North Polar Vortex 21 / 30 21. What is the name of the large impact crater on the Moon's surface that contains the Sea of Tranquility, where Apollo 11 landed? a) Tycho b) Clavius c) Mare Tranquillitatis d) Copernicus 22 / 30 22. Which dwarf planet was the first to be discovered beyond Pluto's orbit in the Kuiper Belt? a) Eris b) Haumea c) Makemake d) Ceres 23 / 30 23. Which spacecraft was the first to directly measure the solar wind? a) Apollo 11 b) Voyager 1 c) Pioneer 10 d) Mariner 2 24 / 30 24. Which moon of Uranus is known for its unusual, roughly spherical shape, with a diameter about one-third that of our Moon? a) Titan b) Enceladus c) Miranda d) Triton 25 / 30 25. What is the name of the region on Pluto characterized by vast plains of nitrogen ice? a) Sputnik Planitia b) Tombaugh Regio c) Lowell Regio d) Cthulhu Regio 26 / 30 26. Which moon of Saturn is believed to have a subsurface ocean beneath its icy crust? a) Enceladus b) Titan c) Mimas d) Dione 27 / 30 27. Which moon of Saturn is the only moon in the Solar System known to have a dense atmosphere, primarily composed of nitrogen? a) Titan b) Enceladus c) Miranda d) Triton 28 / 30 28. What is the largest gap in Saturn's rings, located between the A ring and the B ring? a) Encke Gap b) Cassini Division c) Keeler Gap d) Roche Division 29 / 30 29. What was the last appearance of Halley's Comet before its most recent return in 1986? a) 1910 b) 1972 c) 1986 d) 1997 30 / 30 30. What is unique about Uranus's rotation axis compared to other planets in the Solar System? a) It has a retrograde rotation b) It has an extremely slow rotation c) It has a nearly 90-degree tilt d) It has no rotation axis tilt 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. Send feedback Buy Solar System MCQ PDF for Offline Study