This quiz works best with JavaScript enabled. Home > Science > Earth > Big Bang Theory – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Big Bang Theory Quiz 2 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. According to the Big Bang the universe began about ..... years ago. A) 13.5 Billion. B) 50 Million. C) 13.7 Billion. D) 14.7 Billion. Show Answer Correct Answer: C) 13.7 Billion. 2. Catholic Priest and scientist that proposed the Big Bang Theory A) Edwin Hubble. B) Georges Lemaitre. C) Christian Andreas Doppler. D) None of above. Show Answer Correct Answer: B) Georges Lemaitre. 3. When 1 proton and 1 neutron undergoes nucleosynthesis the element formed is? A) Protium. B) Deuterium. C) Helium. D) Tritium. Show Answer Correct Answer: A) Protium. 4. What can astronomers learn about a star by studying the star's spectrum? A) Temperature and Composition. B) Composition, Temperature and Motion of the star. C) Composition and Motion of the star. D) If the star is Heliocentric. Show Answer Correct Answer: B) Composition, Temperature and Motion of the star. 5. The key ratio found in the universe that confirms the Big Bang is ..... A) 25% hydrogen and 75% helium. B) 75% hydrogen and 75% helium. C) 75% hydrogen and 25% lithium. D) 75% hydrogen and 25% helium. Show Answer Correct Answer: D) 75% hydrogen and 25% helium. 6. What is the Cosmic Microwave Background? A) Leftover light from the Big Bang. B) Predicted before it was discovered. C) Has been measured, is very smooth. D) All of these. Show Answer Correct Answer: D) All of these. 7. Scientists have been able to determine that all of the visible mass in the universe is about ..... hydrogen and ..... helium. A) 73%, 25%. B) 25%, 73%. C) Hot, cool. D) 50%, 50%. Show Answer Correct Answer: A) 73%, 25%. 8. What is Background Radiation? A) Leftover heat and energy from atom formation. B) Leftover light from atom formation. C) Never heard of that so it must not exist. D) Leftover cold from atom formation. Show Answer Correct Answer: A) Leftover heat and energy from atom formation. 9. Due to the way matter formed after the Big Bang, most stars in the universe are composed of approximately ..... and ..... A) 90% oxygen; 10% helium. B) 50% helium; 50% hydrogen. C) 75% hydrogen; 25% helium. D) 25% hydrogen; 75% oxygen. Show Answer Correct Answer: C) 75% hydrogen; 25% helium. 10. Which answer does NOT describe a theory? A) A guess that could be proved right or wrong. B) An explanation of a natural event. C) A well tested explanation. D) An explanation of a natural event supported by evidence. Show Answer Correct Answer: A) A guess that could be proved right or wrong. 11. Which of the following elements' nuclei are not created during Nucleosynthesis? A) H(single proton). B) Tritium. C) Deuterium. D) None of the above. Show Answer Correct Answer: D) None of the above. 12. Why are hydrogen and helium the first elements to form and the most abundant? A) They are complex elements so all other elements can form from them. B) They are the most simple and easy to form elements. C) They are not the most abundant elements. D) None of above. Show Answer Correct Answer: B) They are the most simple and easy to form elements. 13. How old is our universe according to the Big Bang Theory? A) We don't know. B) 15 billion years. C) 13.7 billion years. D) 11 billion years. Show Answer Correct Answer: C) 13.7 billion years. 14. When will a star become a red giant? A) In the early stages of its life. B) After the star has died. C) When the star's fuel has run out. D) None of above. Show Answer Correct Answer: C) When the star's fuel has run out. 15. Which 2 things did the Big Bang create? A) Space and Stuff. B) Heat and Fire. C) Time and Space. D) Nothing. Show Answer Correct Answer: C) Time and Space. 16. Who was Background Radiation accidentally discovered by? A) Penzias. B) Hubble. C) Kepler. D) Galileo. Show Answer Correct Answer: A) Penzias. 17. "helio-" means ..... A) Earth. B) Sun. C) Space. D) Tree. Show Answer Correct Answer: B) Sun. 18. It is a reaction in which two or more nuclei are combined to form one or more combined to form one or more different atomic nuclei and subatomic particles (neutron and proton). A) Nuclear Fission. B) Nuclear Fusion. C) Big Bang Nucleosynthesis. D) Stellar Nucleosynthesis. Show Answer Correct Answer: B) Nuclear Fusion. 19. The law of conservation of mass states that A) Matter can be created from nothing. B) Matter can be released from our universe. C) The total mass of an object remains fixed within a closed system. D) What's the matter?. Show Answer Correct Answer: C) The total mass of an object remains fixed within a closed system. 20. The Big Bang Theory explains that the universe ..... A) Expanded. B) Had a beginning 13.8 billion years ago. C) Used to be much smaller and hotter. D) All of the above. Show Answer Correct Answer: D) All of the above. ← PreviousNext →Related QuizzesScience QuizzesBig Bang Theory Quiz 1Big Bang Theory Quiz 3Big Bang Theory Quiz 4Big Bang Theory Quiz 5Big Bang Theory Quiz 6Big Bang Theory Quiz 7Big Bang Theory Quiz 8Big Bang Theory Quiz 9Big Bang Theory Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books