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 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. How does the Milky Way contribute to the study of dark matter and dark energy? a) By emitting dark matter and dark energy particles into space for analysis. b) By hosting research facilities dedicated to studying dark matter and dark energy. c) By serving as a laboratory for observing the effects of dark matter and dark energy on galactic dynamics. d) By generating gravitational waves that reveal the presence of dark matter and dark energy. 2 / 30 2. What is an emission nebula? a) A nebula that emits its own light due to ionization by hot stars b) A nebula composed mainly of dark matter c) A nebula formed by the collision of galaxies d) A nebula that reflects light from nearby stars 3 / 30 3. What is the name of the object orbiting Sagittarius A* that provided evidence of its massive nature? a) Hubble Space Telescope b) Spitzer Space Telescope c) Chandra X-ray Observatory d) Event Horizon Telescope 4 / 30 4. What evidence supports the existence of dark matter in the Milky Way? a) The detection of invisible dark matter particles within the Milky Way's disk. b) Observations of the Milky Way's rotation curve, which indicates the presence of unseen mass. c) The absence of stars and gas in the Milky Way's halo. d) The discovery of dark matter emissions from the Milky Way's center. 5 / 30 5. What is the primary source of illumination for reflection nebulae? a) Ionizing radiation from hot stars b) Infrared radiation from protostars c) Ultraviolet radiation from quasars d) Visible light from nearby stars 6 / 30 6. What is the hierarchical formation theory of galaxies? a) A theory proposing that galaxies form through the gradual merger and accumulation of smaller structures, such as gas clouds and protogalactic fragments b) A theory suggesting that galaxies form rapidly from the collapse of large, primordial gas clouds in the early universe c) A theory proposing that galaxies form through the gravitational collapse of massive dark matter halos, followed by the accretion of gas and stars d) A theory proposing that galaxies form through a combination of both hierarchical merging and monolithic collapse processes 7 / 30 7. What is the name of the supercluster of galaxies to which the Milky Way belongs? a) Virgo Supercluster b) Hydra-Centaurus Supercluster c) Local Group d) Laniakea Supercluster 8 / 30 8. 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 9 / 30 9. What is the approximate number of globular clusters in the Milky Way galaxy? a) 10 b) 50 c) 100 d) 150 10 / 30 10. What are tidal tails in the context of galactic collisions? a) Streams of gas ejected from galaxies due to nuclear fusion reactions b) Streams of stars and gas pulled out of galaxies by gravitational forces during a collision c) Regions of intense star formation triggered by galactic collisions d) Energetic particles emitted by black holes at the centers of merging galaxies 11 / 30 11. What is the approximate number of stars in the Milky Way galaxy? a) 10 million b) 100 million c) 1 billion d) 100 billion 12 / 30 12. What is the monolithic collapse theory of galaxy formation? a) A theory proposing that galaxies form through the gradual merger and accumulation of smaller structures, such as gas clouds and protogalactic fragments b) A theory suggesting that galaxies form rapidly from the collapse of large, primordial gas clouds in the early universe c) A theory proposing that galaxies form through the gravitational collapse of massive dark matter halos, followed by the accretion of gas and stars d) A theory proposing that galaxies form through a single, rapid collapse of massive gas clouds without significant mergers 13 / 30 13. What is the Galactic Rotation Curve? a) A graphical representation of the Milky Way's orbit around the Sun b) A curve showing the distribution of stars and gas in the Milky Way's spiral arms c) A plot of the rotational velocity of stars and gas as a function of their distance from the galactic center d) A model describing the motion of galaxies in clusters under the influence of gravity 14 / 30 14. What is the significance of studying Sagittarius A*? a) It provides insights into the formation of planetary systems b) It helps understand the dynamics of galactic mergers c) It offers a laboratory to test theories of general relativity d) It reveals the nature of dark matter in the universe 15 / 30 15. 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 16 / 30 16. What are the main goals of the Gaia mission? a) To search for signs of extraterrestrial life in the Milky Way b) To study the formation and evolution of galaxies beyond the Milky Way c) To create a detailed 3D map of the Milky Way galaxy and its stellar populations d) To explore the dynamics of black holes at the centers of galaxies 17 / 30 17. What is the approximate distance from Earth to the center of the Milky Way galaxy? a) 1,000 light-years b) 10,000 light-years c) 100,000 light-years d) 1 million light-years 18 / 30 18. What is the approximate thickness of the Milky Way's galactic disk? a) 100 light-years b) 1,000 light-years c) 10,000 light-years d) 100,000 light-years 19 / 30 19. How are the Andromeda and Triangulum galaxies related to the Milky Way? a) They are satellite galaxies of the Milky Way b) They are the parent galaxies of the Milky Way c) They are siblings of the Milky Way d) They are unrelated to the Milky Way 20 / 30 20. What advantage do radio observations offer for studying the Milky Way? a) Radio waves penetrate interstellar dust more effectively than visible light b) Radio telescopes have higher resolution than optical telescopes c) Radio emissions provide more detailed information about the temperature of stars d) Radio observations are less affected by Earth's atmosphere than visible light observations 21 / 30 21. What are the spiral arms of the Milky Way galaxy primarily composed of? a) Dark matter b) Neutron stars c) Interstellar gas and dust d) Planetary nebulae 22 / 30 22. 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. 23 / 30 23. What is the final evolutionary stage of low to medium-mass stars like the Sun? a) Red giant b) Main sequence c) White dwarf d) Neutron star 24 / 30 24. What is the significance of studying the evolution of the Milky Way? a) Understanding the formation and evolution of the Milky Way provides insights into the broader processes shaping galaxies and the universe. b) Studying the Milky Way's evolution helps predict its future trajectory and potential collisions with other galaxies. c) The Milky Way serves as a model for understanding the development of life in the universe. d) Understanding the Milky Way's evolution allows astronomers to predict future changes in its appearance and structure. 25 / 30 25. What happens to the stars during a galactic collision? a) Stars are destroyed in the collision b) Stars are flung out of the galaxies into intergalactic space c) Stars are gravitationally disrupted and redistributed within the merging galaxies d) Stars undergo nuclear fusion reactions, creating new elements 26 / 30 26. What is galactic chronology? a) The study of the formation and evolution of galaxies b) The study of the ages and lifecycles of stars within a galaxy c) The study of the ages of different components of a galaxy and their relation to its formation history d) The study of the distribution of stars within a galaxy 27 / 30 27. How does the Milky Way's interaction with neighboring galaxies affect its evolution? a) The Milky Way absorbs neighboring galaxies, fueling its growth. b) The Milky Way experiences gravitational disturbances and interactions with neighboring galaxies, influencing its structure and star formation history. c) The Milky Way repels neighboring galaxies, preventing their influence on its evolution. d) The Milky Way merges with neighboring galaxies, leading to the formation of a supergalaxy. 28 / 30 28. What role does Sagittarius A* play in shaping the Milky Way galaxy? a) It drives the rotation of the Milky Way's spiral arms b) It regulates the rate of star formation in the galaxy c) It anchors the central bulge of the Milky Way and influences the orbits of nearby stars d) It emits powerful jets of radiation that shape the galaxy's morphology 29 / 30 29. What is synchrotron radiation in the context of radio observations? a) Radio emissions produced by the collision of high-speed particles with interstellar gas b) Radio emissions produced by the interaction of cosmic rays with Earth's atmosphere c) Radio emissions produced by the acceleration of charged particles along magnetic field lines d) Radio emissions produced by nuclear fusion reactions within stars 30 / 30 30. 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 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 Share the above MCQs:Click to share on Facebook (Opens in new window)Click to share on WhatsApp (Opens in new window)Click to share on X (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)
