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. What triggers the formation of stars within giant molecular clouds? a) Supernova explosions b) Collisions between galaxies c) Gravitational collapse of the cloud due to its own mass d) Radiation pressure from nearby stars 2 / 30 2. Which major spiral arm of the Milky Way is located closest to the galactic center? a) Orion Arm b) Perseus Arm c) Sagittarius Arm d) Norma Arm 3 / 30 3. Which of the following is a member of the Local Group but not a satellite of the Milky Way or Andromeda? a) Triangulum Galaxy b) Large Magellanic Cloud c) Small Magellanic Cloud d) Messier 87 4 / 30 4. What distinguishes the monolithic collapse theory from the hierarchical formation theory? a) The speed of galaxy formation b) The importance of dark matter in galaxy evolution c) The role of mergers in galaxy growth d) The distribution of galaxies in the universe 5 / 30 5. What is the name of the galaxy group that includes the Milky Way, the Andromeda Galaxy, and their satellites? a) Virgo Supercluster b) Hydra-Centaurus Supercluster c) Local Group d) Laniakea Supercluster 6 / 30 6. What are some observable consequences of galactic collisions? a) Formation of new stars and star clusters b) Depletion of gas and cessation of star formation c) Destruction of existing galaxies and loss of stellar populations d) All of the above 7 / 30 7. What observational technique is primarily used to study Sagittarius A*? a) Optical astronomy b) Infrared astronomy c) X-ray astronomy d) Ultraviolet astronomy 8 / 30 8. Which type of stars are more commonly associated with globular clusters in the Milky Way? a) Population I stars b) Population II stars c) Population III stars d) Intermediate Population stars 9 / 30 9. Which type of stars are the remnants of supernova explosions? a) Main sequence stars b) Red giants c) White dwarfs d) Neutron stars 10 / 30 10. What role do giant molecular clouds play in star formation? a) They provide the raw materials (gas and dust) from which stars form b) They emit intense radiation that triggers nuclear fusion reactions in nearby stars c) They repel nearby stars, preventing them from forming d) They cause existing stars to undergo gravitational collapse and form new stars 11 / 30 11. 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 12 / 30 12. 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 13 / 30 13. What is the name of the process through which the Milky Way interacts with other galaxies? a) Galactic merging b) Stellar cannibalism c) Galactic collision d) Intergalactic attraction 14 / 30 14. What is the primary source of energy production in red giant stars? a) Fusion of hydrogen into helium b) Fusion of helium into heavier elements c) Nuclear reactions involving carbon and oxygen d) Gravitational collapse 15 / 30 15. 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 16 / 30 16. What is the significance of studying the orbital motion of stars within the Milky Way? a) It provides insights into the formation and evolution of galaxies b) It helps astronomers identify the presence of exoplanets orbiting distant stars c) It allows for the measurement of the Milky Way's mass distribution and the presence of dark matter d) It reveals the processes responsible for the formation of star clusters 17 / 30 17. 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 18 / 30 18. What role do supermassive black holes play in galactic collisions? a) They repel galaxies, preventing collisions from occurring b) They trigger explosive supernova events within merging galaxies c) They merge together to form larger supermassive black holes d) They disrupt the orbits of stars, leading to chaotic galactic dynamics 19 / 30 19. What is the name of the region in the Milky Way where new stars are actively forming? a) Galactic bulge b) Galactic halo c) Spiral arms d) Galactic center 20 / 30 20. Which spiral arm of the Milky Way is located between the Orion Arm and the Sagittarius Arm? a) Perseus Arm b) Carina-Sagittarius Arm c) Scutum-Centaurus Arm d) Norma Arm 21 / 30 21. What is the significance of the Milky Way's central bulge? a) It contains the galaxy's youngest stars b) It hosts the largest concentration of black holes in the galaxy c) It is the region of highest gravitational pull in the galaxy d) It houses a supermassive black hole at its center 22 / 30 22. What is the term for the region where the Milky Way's disk meets its halo? a) Galactic equator b) Galactic bulge c) Galactic corona d) Galactic warp 23 / 30 23. 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 24 / 30 24. What is the name of the process through which the Milky Way acquires new stars? a) Stellar accretion b) Star formation c) Galactic cannibalism d) Supernova explosion 25 / 30 25. 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) 26 / 30 26. How does the Gaia spacecraft measure the positions and motions of stars? a) By detecting visible light emitted by stars b) By observing the gravitational lensing effects of stars c) By measuring the parallax shift of stars as Earth orbits the Sun d) By analyzing the Doppler shifts of stars' spectral lines 27 / 30 27. What is the approximate size of a white dwarf star? a) Similar to the size of the Earth b) Similar to the size of Jupiter c) Similar to the size of the Sun d) Similar to the size of a neutron star 28 / 30 28. What is the primary distinguishing feature of the Galactic Bulge? a) It contains predominantly young stars b) It is composed mainly of spiral arms c) It has a flattened, disk-like shape d) It contains a dense concentration of old stars and a supermassive black hole 29 / 30 29. What are stellar nurseries? a) Regions of mature stars where no new star formation occurs b) Observatories dedicated to studying the birth of stars c) High-energy environments where stars undergo nuclear fusion reactions d) Dense regions within giant molecular clouds where new stars are born 30 / 30 30. What is a population I star? a) A young star with high metallicity b) A middle-aged star with low metallicity c) An old star with high metallicity d) A young star with low metallicity 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. 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