Quasars Astronomy Quiz

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University of Illinois, Chicago *

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109

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Astronomy

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Apr 3, 2024

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docx

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Uploaded by MegaMorningAntelope33

**Quasars Astronomy Quiz** **Instructions:** Answer the following questions to test your knowledge about quasars, their properties, and their significance in astronomy. Choose the most appropriate answer for each question. **1. What does the term "quasar" stand for?** a) Quasi-stellar object b) Quantum spectrum c) Quiescent star d) Quark source **2. Quasars are powered by:** a) Nuclear fusion b) Black hole accretion disks c) Stellar winds d) Supernova explosions **3. Which of the following is a defining characteristic of quasars?** a) Low luminosity b) High redshift c) Close proximity to Earth d) Presence of planetary atmospheres **4. Quasars emit radiation across which part of the electromagnetic spectrum?** a) Visible light only b) X-rays and gamma rays c) Radio waves and microwaves d) All of the above

**5. What is the primary mechanism responsible for the extreme luminosity of quasars?** a) Nuclear fusion reactions b) Gravitational lensing c) Accretion of matter onto supermassive black holes d) Stellar explosions **6. Who discovered the first quasar?** a) Edwin Hubble b) Carl Sagan c) Martin Ryle d) Maarten Schmidt **7. Quasars are typically found at the centers of:** a) Elliptical galaxies b) Spiral galaxies c) Irregular galaxies d) Dwarf galaxies **8. What is the redshift range typically associated with quasars?** a) 0.1 - 0.5 b) 1 - 3 c) 5 - 10 d) 15 - 20 **9. Quasars are believed to be most common during which epoch in the universe's history?** a) The present epoch b) The early universe

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