This quiz works best with JavaScript enabled. Home > Science > Physics > The Universe – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books The Universe Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Cosmological model that explains the sudden development of the universe through expansion from a hot, dense state. A) Big Bang Theory. B) Doppler Effect. C) Redshift. D) Blueshift. Show Answer Correct Answer: A) Big Bang Theory. 2. In red shift, the wavelengths of light become A) Shorter/ Bluer. B) Longer/ more red. C) Easier to see. D) Invisible. Show Answer Correct Answer: C) Easier to see. 3. Which belief is the basis of Ptolemy's geocentric model of the solar system? A) The Sun and planets revolve around the Earth. B) Jupiter is the same size as the Earth's moon. C) The Sun is the center of the universe. D) The Earth revolves around the Moon. Show Answer Correct Answer: A) The Sun and planets revolve around the Earth. 4. Which is one of Edwin Hubble's findings that supports the big bang theory? A) The universe started at a central point. B) Planetesimals formed in debris disks. C) Visible matter only makes up about 5% of the universe. D) The Milky Way is the only galaxy in the universe. Show Answer Correct Answer: A) The universe started at a central point. 5. What happened to the electromagnetic radiation emitted from the Big Bang? A) It is visible in optic telescopes. B) I has moved to the gamma ray part of the spectrum. C) It has stretched out to the microwave part of the spectrum. D) It is too old and no longer exists. Show Answer Correct Answer: C) It has stretched out to the microwave part of the spectrum. 6. A shift toward longer wavelengths of the spectral lines emitted by a celestial object that is caused by the object moving away from the earth. A) BLUE SHIFT. B) EXPANSION. C) CONTRACTION. D) RED SHIFT. Show Answer Correct Answer: D) RED SHIFT. 7. A particle accelerator is used to model A) Conditions that existed during the big bang. B) The end of the universe. C) Particle expanding within elements. D) Nuclear fission. Show Answer Correct Answer: A) Conditions that existed during the big bang. 8. Math does not point towards all galaxies expanding from a center point-starting about 13.7 billion years ago A) True. B) False. C) Hmmmm tacos. D) None of above. Show Answer Correct Answer: B) False. 9. What model is where the earth is in the middle of our universe? A) Heliocentric Model. B) Geocentric Model. C) Moon phases. D) Tidal Phases. Show Answer Correct Answer: B) Geocentric Model. 10. The Milky Way Galaxy is a A) Spiral. B) Lenticular. C) Elliptical. D) Irregular. Show Answer Correct Answer: A) Spiral. 11. Earth, along with the other planets, revolves around the Sun. The planets revolve in a counterclockwise direction. The cause of the revolution is mostly due to which forces? A) Mass and inertia. B) Orbital speed and mass. C) Gravity and inertia. D) Gravity and orbital speed. Show Answer Correct Answer: A) Mass and inertia. 12. The explosion associated with the theory and the formation of the universe is inferred to have occurred how many billions of years ago? A) Less than 1. B) 2.5. C) 4.6. D) 13.7. Show Answer Correct Answer: D) 13.7. 13. What is the percentage of Hydrogen in the Universe? A) 0.10%. B) 8%. C) 91.90%. D) 100%. Show Answer Correct Answer: C) 91.90%. 14. A light-year is A) 365 days. B) The distance light travels in a year. C) The distance from Earth to Proxima Centauri. D) The amount o flight the sun produces in a year. Show Answer Correct Answer: B) The distance light travels in a year. 15. We can live on Earth because, UNLIKE the other planets Earth ..... A) Has enough liquid water to support life as we know it today. B) Has lots of carbon dioxide for us to breathe. C) Has a rocky surface. D) Has temperatures that can fall to 100 degrees below zero in the winter. Show Answer Correct Answer: A) Has enough liquid water to support life as we know it today. 16. How long after the Big Bang did our solar system form? A) A little more than 9 billion years ago. B) Around 20 billions years ago. C) A bit less than 6 million years ago. D) A little less that 14 millions years ago. Show Answer Correct Answer: A) A little more than 9 billion years ago. 17. How old is the sun A) 17 years. B) About 4.5 Million years. C) 2 days. D) 10 million years. Show Answer Correct Answer: B) About 4.5 Million years. 18. The balancing point of the solar system is the A) Barycenter. B) Sun. C) Focus. D) Equinox. Show Answer Correct Answer: A) Barycenter. 19. The color of a star will tell you its ..... A) Temperature. B) Brightness. C) Size. D) Mass. Show Answer Correct Answer: A) Temperature. 20. Which term would be considered the smallest object? A) Sun. B) Supercluster. C) Galaxy. D) Universe. Show Answer Correct Answer: A) Sun. 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