Home» Online Test » Astronomy » Milky Way Galaxy Online Test 0% Sorry, time's up. To complete the online test, please restart it. Created by Vikash chaudhary This 'Milky Way Galaxy Online Test' covers questions across all the topics related to the Galaxies. 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. Which astronomical instrument has been crucial in mapping the structure of the Milky Way galaxy? a) Radio telescope b) X-ray telescope c) Infrared telescope d) Optical telescope 2 / 30 2. Which of the following is NOT one of the major spiral arms of the Milky Way? a) Orion Arm b) Perseus Arm c) Scutum-Centaurus Arm d) Sagittarius Arm 3 / 30 3. Which type of galaxy interaction is the Milky Way currently experiencing? a) Galaxy merger with the Andromeda Galaxy b) Close encounter with the Triangulum Galaxy c) Tidal interaction with a satellite dwarf galaxy d) Isolated from significant galactic interactions 4 / 30 4. What is the primary composition of a white dwarf star? a) Hydrogen and helium b) Helium and carbon/oxygen c) Carbon and oxygen d) Iron and nickel 5 / 30 5. What is the approximate age of the Milky Way galaxy? a) 4.6 billion years b) 10 billion years c) 13.5 billion years d) 100 billion years 6 / 30 6. What is the role of the Milky Way in cosmic evolution? a) The Milky Way acts as a hub for the formation of new galaxies. b) The Milky Way emits radiation that influences the evolution of other galaxies. c) The Milky Way provides a template for the formation and evolution of galaxies in the universe. d) The Milky Way prevents the formation of stars and galaxies in its vicinity. 7 / 30 7. What is the estimated mass of Sagittarius A*? a) 1 million solar masses b) 4 million solar masses c) 10 million solar masses d) 100 million solar masses 8 / 30 8. How do the ages of population I and population II stars differ? a) Population I stars are older than population II stars b) Population I stars are younger than population II stars c) Population I and population II stars have similar ages d) The ages of population I and population II stars depend on their positions within the galaxy 9 / 30 9. What is the Galactic Halo in the Milky Way galaxy? a) A region of intense star formation b) The outer disk of the Milky Way c) A spherical region surrounding the central bulge d) The region containing the youngest stars in the galaxy 10 / 30 10. What are Population I stars in the Milky Way? a) Young, metal-poor stars found primarily in the galactic halo b) Old, metal-rich stars found mainly in the galactic disk c) Middle-aged stars with intermediate metallicity located in globular clusters d) Massive, variable stars known for their irregular luminosity changes 11 / 30 11. What are some potential benefits of human colonization of space for Earth? a) Space colonization could lead to advances in science, technology, and medicine that benefit life on Earth. b) It could alleviate population pressures by providing new areas for settlement and resource extraction. c) It could serve as a platform for monitoring and addressing global environmental challenges. d) It could inspire unity and cooperation among nations in pursuit of common goals beyond Earth. 12 / 30 12. Which famous nebula is an example of an emission nebula? a) Eagle Nebula b) Horsehead Nebula c) Rosette Nebula d) Trifid Nebula 13 / 30 13. What are some proposed motivations for human exploration and colonization beyond Earth? a) Economic opportunities, scientific research, and the search for habitable environments b) Expansion of political influence, military dominance, and resource exploitation c) Religious pilgrimage, cultural exchange, and tourism d) Escape from environmental disasters, overpopulation, and societal collapse 14 / 30 14. What is the name of the galaxy nearest to the Milky Way? a) Andromeda Galaxy b) Large Magellanic Cloud c) Small Magellanic Cloud d) Triangulum Galaxy 15 / 30 15. What are radio observations of the Milky Way? a) Observations made using telescopes sensitive to visible light b) Observations made using radio telescopes to detect radio emissions c) Observations made using infrared telescopes to penetrate interstellar dust d) Observations made using ultraviolet telescopes to study hot, young stars 16 / 30 16. What is the significance of studying globular clusters? a) They provide insights into the process of planet formation b) They contain young, massive stars suitable for studying stellar evolution c) They offer clues about the formation and early evolution of galaxies d) They serve as indicators of the current rate of star formation in the Milky Way 17 / 30 17. What is the defining characteristic of main sequence stars? a) They are the most massive stars in the galaxy b) They are in the final stages of their life cycle c) They fuse hydrogen into helium in their cores d) They are surrounded by protoplanetary disks 18 / 30 18. What types of phenomena in the Milky Way are studied using radio observations? a) Star formation regions, supernova remnants, and pulsars b) Planetary nebulae, white dwarf stars, and black holes c) Open star clusters, globular clusters, and binary star systems d) Spiral arms, galactic center, and dark matter distribution 19 / 30 19. What is the significance of the Milky Way's spiral arms? a) They contain the oldest stars in the galaxy b) They are regions of intense star formation c) They mark the boundaries between galactic superclusters d) They contain the highest density of black holes in the galaxy 20 / 30 20. What is the Galactic Coordinate System? a) A system of coordinates used to locate objects within the Milky Way galaxy b) A system of coordinates used to map the positions of stars in the universe c) A system of coordinates based on the celestial equator and the ecliptic plane d) A system of coordinates used exclusively for radio astronomy observations 21 / 30 21. What is the approximate diameter of the Milky Way galaxy? a) 10,000 light-years b) 50,000 light-years c) 100,000 light-years d) 200,000 light-years 22 / 30 22. What role does the distribution of mass within the Milky Way play in shaping the orbital motion of stars? a) It has no significant effect on the orbital motion of stars b) It determines the direction of stars' motion but not their orbital speeds c) It influences the orbital speeds and trajectories of stars d) It causes stars to collide with each other 23 / 30 23. How does space colonization relate to the sustainability of human civilization? a) Space colonization provides a backup plan in case of global catastrophes on Earth. b) Space colonization accelerates the depletion of resources and exacerbates environmental degradation. c) Space colonization diverts attention and resources away from solving pressing issues on Earth. d) Space colonization offers new opportunities for economic growth and geopolitical power. 24 / 30 24. What are protostars? a) Mature stars nearing the end of their life cycle b) Stars undergoing nuclear fusion reactions in their cores c) Young stellar objects in the early stages of star formation, before nuclear fusion ignition d) Low-mass stars that have exhausted their nuclear fuel 25 / 30 25. What is the significance of the Milky Way's position within the Local Group? a) It is the largest galaxy in the Local Group b) It is located at the center of the Local Group c) It is gravitationally bound to the Andromeda Galaxy d) It influences the formation of galaxies within the Local Group 26 / 30 26. How does dark energy relate to the expansion of the universe and the Milky Way's motion? a) Dark energy accelerates the expansion of the universe and influences the Milky Way's motion within it. b) Dark energy slows down the expansion of the universe and counteracts the Milky Way's gravitational pull. c) Dark energy causes the Milky Way to rotate faster around its center. d) Dark energy has no effect on the Milky Way's motion or the expansion of the universe. 27 / 30 27. What is the approximate orbital period of the Sun around the galactic center? a) 10 million years b) 100 million years c) 1 billion years d) 10 billion years 28 / 30 28. What is the primary characteristic of stars in the Galactic Halo? a) They are young and metal-rich b) They are old and metal-poor c) They are massive and blue d) They are actively undergoing nuclear fusion 29 / 30 29. What is the Triangulum Galaxy (M33)? a) A spiral galaxy located in the constellation Triangulum, about 2.5 million light-years from Earth b) A dwarf galaxy orbiting the Milky Way c) A globular cluster within the Milky Way galaxy d) A satellite galaxy of the Andromeda Galaxy (M31) 30 / 30 30. What prevents a white dwarf from collapsing further under its own gravity? a) Electron degeneracy pressure b) Nuclear fusion reactions c) Gravitational lensing d) Stellar winds 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 Milky Way Galaxy MCQ PDF for Offline Study
