This quiz works best with JavaScript enabled. Home > Science > Physics > Solar System – Quiz 33 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Solar System Quiz 33 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which planets do not have moons? A) Mercury and Venus. B) Mercury and Mars. C) Mars and Saturn. D) Uranus and Neptune. Show Answer Correct Answer: A) Mercury and Venus. 2. The path a planet follows while it is revolving around the sun is called A) Orbit. B) Meteor. C) Asteroid. D) None of above. Show Answer Correct Answer: A) Orbit. 3. Where can you go to get the most current information about our solar system? A) In encyclopedias. B) Your science textbook. C) Mrs. Wieseman's course page. D) NASA's website. Show Answer Correct Answer: D) NASA's website. 4. Which of the following is NOT a characteristic of the Sun? A) It gives off heat and light. B) It is a ball of hot, glowing gas. C) It has rings and craters. D) It is a bright star. Show Answer Correct Answer: C) It has rings and craters. 5. What holds the planets in their orbits around the sun? A) Gravity. B) Speed. C) String. D) Air currents. Show Answer Correct Answer: A) Gravity. 6. An astronomical unit is the average distance between the Sun and which planet? A) Venus. B) Earth. C) Jupiter. D) Mars. Show Answer Correct Answer: B) Earth. 7. One important factor that makes living things possible to life on Earth is ..... A) Water. B) Gravity. C) Tilted axis. D) Hydrogen. Show Answer Correct Answer: A) Water. 8. How many rocky planets are in the Solar System A) 5. B) 4. C) 3. D) 2. Show Answer Correct Answer: B) 4. 9. The Sun is the center of the ..... A) Solar system. B) Milky Way. C) Constellation Ursa Major. D) Universe. Show Answer Correct Answer: A) Solar system. 10. What object in the solar system contains most of the mass? A) Earth. B) Moon. C) Jupiter. D) Sun. Show Answer Correct Answer: D) Sun. 11. What unit of measurement is used to calculate distance in our universe? A) Astronomical units. B) Kilometers. C) Light years. D) Parsecs. Show Answer Correct Answer: C) Light years. 12. What is responsible for smaller objects in space continuously circling/orbiting larger objects? A) Light-year. B) Air. C) Wind. D) Gravity. Show Answer Correct Answer: D) Gravity. 13. One factor that makes life possible on Earth is A) An atmospher. B) Water. C) Greenhouse effect. D) Gravity. Show Answer Correct Answer: B) Water. 14. What is the most useful unit for measuring distances within the solar system? A) The light-year. B) The parsec. C) The centimeter. D) The astronomical unit. Show Answer Correct Answer: D) The astronomical unit. 15. Which one is not an outer planet? A) Jupiter. B) Neptune. C) Mars. D) Uranus. Show Answer Correct Answer: C) Mars. 16. Areas of gas on the sun's surface that are cooler than gases around them are called A) Corona. B) Prominences. C) Sunspots. D) Solarspots. Show Answer Correct Answer: C) Sunspots. 17. Who was the first person to study the night sky with a telescope? A) Franklin. B) Aristotle. C) Ptolemy. D) Galileo. Show Answer Correct Answer: D) Galileo. 18. What is the terminator on the moon? A) The light side of the Moon. B) The dark side of the Moon. C) The border between light and dark on the Moon. D) When the Moon casts a shadow on Earth. Show Answer Correct Answer: C) The border between light and dark on the Moon. 19. This planet has a retrograde rotation (rotates in the opposite direction of the other planets) A) Mercury. B) Venus. C) Earth. D) Mars. Show Answer Correct Answer: B) Venus. 20. What is the sun mainly made from? A) Liquid lava. B) Rock. C) Molton iron. D) Hydrogen + helium gas. Show Answer Correct Answer: D) Hydrogen + helium gas. ← 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books