This quiz works best with JavaScript enabled. Home > Science > Physics > Solar System – Quiz 9 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Solar System Quiz 9 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which planet has the most gravity? A) Earth. B) Mars. C) Neptune. D) Jupiter. Show Answer Correct Answer: D) Jupiter. 2. Scientists use ..... to classify how bright a star appears from Earth. A) Apparent magnitude. B) Light-years. C) Apparent motion. D) Absolute magnitude. Show Answer Correct Answer: A) Apparent magnitude. 3. Those who study about the celestial bodies are called A) Scientists. B) Astronomers. C) Astrology. D) Seismologists. Show Answer Correct Answer: B) Astronomers. 4. Which planet is 14 times the size of Earth? A) Uranus. B) Pluto. C) Saturn. D) Mars. Show Answer Correct Answer: A) Uranus. 5. Chunk of frozen gases, rock, ice, and dust A) Moon. B) Meteor. C) Meteoroid. D) Comet. Show Answer Correct Answer: D) Comet. 6. The HOTTEST stars are usually what color A) Yellow. B) Orange. C) Blue. D) Pink. Show Answer Correct Answer: C) Blue. 7. How many Earth's will fit inside the sun? A) A little over 1 million. B) 1500. C) A little over 2 million. D) 4 million. Show Answer Correct Answer: A) A little over 1 million. 8. According to the nebular hypothesis, what is forming in a collapsing nebular away from the center? A) Light. B) Protostars. C) Planetesimals. D) Hydrogen. Show Answer Correct Answer: C) Planetesimals. 9. What is the time it takes an object to go around the Sun? A) Rotation. B) Revolution. C) Spin. D) Turn. Show Answer Correct Answer: B) Revolution. 10. Early historical models of the solar system were geocentric. Which of these phrases describes a geocentric solar system? A) The sun as a reference point. B) Existing in a star system. C) Earth as a reference point. D) Circular, orbital path of travel. Show Answer Correct Answer: C) Earth as a reference point. 11. Who proposed Nebular hypothesis? A) Sir James Hopwood Jeans and Harold Jeffreys. B) Thomas Chowder Chamberlin and Forest Ray Moulton. C) Immanuel Kant and Pierre-Simon Laplace. D) Andy Albrecht and Andre Linde. Show Answer Correct Answer: C) Immanuel Kant and Pierre-Simon Laplace. 12. Who stated the earth was the center of the solar system? A) Ptolemy. B) Copernicus. C) Kepler. D) Galileo. Show Answer Correct Answer: A) Ptolemy. 13. Which planet is known for having an extreme tilt on its axis causing extreme seasons? A) Neptune. B) Mercury. C) Venus. D) Uranus. Show Answer Correct Answer: D) Uranus. 14. Which planet do scientists think once had surface water or flowing rivers? A) Mercury. B) Venus. C) Mars. D) Jupiter. Show Answer Correct Answer: C) Mars. 15. The rings around Saturn are made up of ....., ..... and ..... A) Ice, comets, shattered moons. B) Asteroids, comets, moons. C) Asteroids, comets, shattered moons. D) Ice, comets, moons. Show Answer Correct Answer: C) Asteroids, comets, shattered moons. 16. What does "geo-" mean? A) Earth. B) Sun. C) Center. D) None of above. Show Answer Correct Answer: A) Earth. 17. What is true of all planets in our Solar System? A) They are large bodies in space that orbit the Sun. B) Planets do not move, only stars move. C) Planets make their own light. D) Planets are larger than stars. Show Answer Correct Answer: A) They are large bodies in space that orbit the Sun. 18. One light year is equal to A) 12 million million kilometres. B) 9.5 million million kilometres. C) 5.5 million million kilometres. D) 9 million kilometres. Show Answer Correct Answer: B) 9.5 million million kilometres. 19. Which planet is an inner planet? A) Uranus. B) Venus. C) Saturn. D) Neptune. Show Answer Correct Answer: B) Venus. 20. What do all the outer planets have in common? A) They all can support life. B) The all have surfaces that are solid. C) They all have surfaces that are not solid. D) They all have surfaces that have liquid water. Show Answer Correct Answer: C) They all have surfaces that are not solid. ← PreviousNext →Related QuizzesScience QuizzesSolar System Quiz 1Solar System Quiz 2Solar System Quiz 3Solar System Quiz 4Solar System Quiz 5Solar System Quiz 6Solar System Quiz 7Solar System Quiz 8Solar System Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books