This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Solar System – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Solar System Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What theory tries to explain the origin of the universe? A) Big Bang Theory. B) Copernican Theory. C) Galilean Theory. D) Ptolemain Theory. Show Answer Correct Answer: A) Big Bang Theory. 2. What is the term for Earth being in the center? A) Galileo. B) Geocentric. C) Sun centered. D) Heliocentric. Show Answer Correct Answer: B) Geocentric. 3. The brightness of a star is called? A) Nebula. B) Life cycle. C) Magnitude. D) Red Giant. Show Answer Correct Answer: C) Magnitude. 4. What makes up a galaxy? A) A group of stars that together form a visible pattern. B) A collection of planets orbiting a central star system. C) Any object that has smaller bodies caught within its gravity. D) A massive collection of star systems orbiting a central point. Show Answer Correct Answer: A) A group of stars that together form a visible pattern. 5. How long does it take to the Earth to move around itself? A) 24 hours. B) 365 days. C) 28 days. D) 24 hours + 6 hours. Show Answer Correct Answer: A) 24 hours. 6. The first four planets in our solar system are called ..... A) Dwarf planets. B) Outer planets. C) Gas giants. D) Inner planets. Show Answer Correct Answer: D) Inner planets. 7. Which planet has got planetry ring? A) Jupiter. B) Uranus. C) Venus. D) Saturn. Show Answer Correct Answer: D) Saturn. 8. Miles is the distance from A) Earth to the moon. B) Sun to the Earth. C) Sun to Mars. D) None of above. Show Answer Correct Answer: B) Sun to the Earth. 9. Between Mars and Jupiter, there is a belt of small rocky objects called ..... A) Comets. B) Planetoids. C) Gas giants. D) None of above. Show Answer Correct Answer: A) Comets. 10. What are three features that make life on Earth possible? A) Warm clouds, a lot of heat, and liquid water. B) An atmosphere, mild temperatures, and liquid water. C) Extreme temperatures, wind, an atmosphere. D) Gravity, hot temperatures, liquid water. Show Answer Correct Answer: B) An atmosphere, mild temperatures, and liquid water. 11. The force that controls the motion of all objects in the universe (mass and distance of the objects determine the strength of gravitational attraction) A) Inertia. B) Distance. C) Mass. D) Gravity. Show Answer Correct Answer: D) Gravity. 12. Its gravity holds the other planets and objects in their position within the Solar System. A) The Asteroid Belt. B) The Sun. C) The Moon. D) The Meteoroids. Show Answer Correct Answer: B) The Sun. 13. This planet is between the last rocky planet and the second gas giant. A) Earth. B) Neptune. C) Uranus. D) Jupiter. Show Answer Correct Answer: D) Jupiter. 14. Which gas is 78% of Earth's Atmosphere? A) Ozone. B) Oxygen. C) Argon. D) Nitrogen. Show Answer Correct Answer: D) Nitrogen. 15. How many planets are in our solar system (not including pluto) A) 7. B) 9. C) 8. D) 10. Show Answer Correct Answer: C) 8. 16. The Gas Giant planets all have what common characteristic? A) Rocky surfaces. B) Orbit closer to the sun. C) Smaller orbits. D) Deep, gaseous atmospheres. Show Answer Correct Answer: D) Deep, gaseous atmospheres. 17. Which of the following describes a comet? A) A solid ball that circles one planet. B) A cluster of stars. C) An icy ball that orbits the sun. D) A hole in space. Show Answer Correct Answer: C) An icy ball that orbits the sun. 18. Which of these descriptions best defines the solar system? A) Planets and asteroids. B) The sun and all planets. C) Planets and their moons. D) The sun and all bodies that travel around it. Show Answer Correct Answer: D) The sun and all bodies that travel around it. 19. Two of the inner planets are ..... A) Venus and Saturn. B) Mars and Venus. C) Earth and Pluto. D) Mercury and Jupiter. Show Answer Correct Answer: B) Mars and Venus. 20. A ..... is a space rock that burns up in Earth's mesosphere. A) Comet. B) Meteor. C) Meteoroid. D) Meteorite. Show Answer Correct Answer: B) Meteor. 21. Which is considered the COLDEST planet? A) Uranus. B) Saturn. C) Venus. D) None of above. Show Answer Correct Answer: A) Uranus. 22. What causes our seasons here on Earth? A) Stars in our universe. B) Our revolution around the moon. C) Earth's tilted axis and our rotation. D) The revolution of Earth around the sun and Earth's tilted axis. Show Answer Correct Answer: D) The revolution of Earth around the sun and Earth's tilted axis. 23. The Red Spot on this planet is a Giant Storm in the planet's atmosphere. A) Uranus. B) Saturn. C) Jupiter. D) Neptune. Show Answer Correct Answer: C) Jupiter. 24. Which of the following is NOT a type of Galaxy found in the Universe? A) Elliptical. B) Spiral. C) Intergalactic. D) Irregular. Show Answer Correct Answer: C) Intergalactic. 25. Which unit of measurement is used to measure distances within our solar system? A) Miles. B) Kilometers. C) Inches. D) Astronomical units. Show Answer Correct Answer: D) Astronomical units. 26. The atmosphere on Uranus rotates faster than its core. Which of the following things that happen on Earth could best relate to what the atmosphere on Uranus is doing? A) Cause heavy rain. B) Cause a huge snowstorm. C) Cause a drought. D) Cause fast-moving wind. Show Answer Correct Answer: D) Cause fast-moving wind. 27. Fixed patterns of stars are called ..... A) Nebulas. B) Orbits. C) Constellations. D) Systems. Show Answer Correct Answer: C) Constellations. 28. Small, natural objects that revolve around other objects A) Moon. B) Revolution. C) Meteorite. D) Meteoroid. Show Answer Correct Answer: A) Moon. 29. What is an accurate description of the shape of the Milky Way galaxy? A) It is shaped like a cloud of gas and dust. B) It has an irregular shape that cannot be defined. C) It is shaped like a pinwheel. D) It is shaped like Mr. Christman. Show Answer Correct Answer: C) It is shaped like a pinwheel. 30. Which planet has the most gravity? A) Mars. B) Neptune. C) Earth. D) Jupiter. Show Answer Correct Answer: D) Jupiter. 31. Scientists use ..... to classify how bright a star appears from Earth. A) Apparent magnitude. B) Light-years. C) Absolute magnitude. D) Apparent motion. Show Answer Correct Answer: A) Apparent magnitude. 32. Those who study about the celestial bodies are called A) Astronomers. B) Scientists. C) Seismologists. D) Astrology. Show Answer Correct Answer: A) Astronomers. 33. Which planet is 14 times the size of Earth? A) Saturn. B) Mars. C) Pluto. D) Uranus. Show Answer Correct Answer: D) Uranus. 34. Chunk of frozen gases, rock, ice, and dust A) Comet. B) Meteor. C) Meteoroid. D) Moon. Show Answer Correct Answer: A) Comet. 35. The HOTTEST stars are usually what color A) Orange. B) Pink. C) Blue. D) Yellow. Show Answer Correct Answer: C) Blue. 36. How many Earth's will fit inside the sun? A) 1500. B) A little over 1 million. C) 4 million. D) A little over 2 million. Show Answer Correct Answer: B) A little over 1 million. 37. According to the nebular hypothesis, what is forming in a collapsing nebular away from the center? A) Light. B) Hydrogen. C) Planetesimals. D) Protostars. Show Answer Correct Answer: C) Planetesimals. 38. What is the time it takes an object to go around the Sun? A) Revolution. B) Spin. C) Turn. D) Rotation. Show Answer Correct Answer: A) Revolution. 39. 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. 40. 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. 41. Who stated the earth was the center of the solar system? A) Ptolemy. B) Kepler. C) Copernicus. D) Galileo. Show Answer Correct Answer: A) Ptolemy. 42. Which planet is known for having an extreme tilt on its axis causing extreme seasons? A) Mercury. B) Uranus. C) Venus. D) Neptune. Show Answer Correct Answer: B) Uranus. 43. Which planet do scientists think once had surface water or flowing rivers? A) Mars. B) Mercury. C) Venus. D) Jupiter. Show Answer Correct Answer: A) Mars. 44. The rings around Saturn are made up of ....., ..... and ..... A) Ice, comets, moons. B) Asteroids, comets, shattered moons. C) Asteroids, comets, moons. D) Ice, comets, shattered moons. Show Answer Correct Answer: B) Asteroids, comets, shattered moons. 45. What does "geo-" mean? A) Earth. B) Sun. C) Center. D) None of above. Show Answer Correct Answer: A) Earth. 46. What is true of all planets in our Solar System? A) They are large bodies in space that orbit the Sun. B) Planets are larger than stars. C) Planets do not move, only stars move. D) Planets make their own light. Show Answer Correct Answer: A) They are large bodies in space that orbit the Sun. 47. One light year is equal to A) 9 million kilometres. B) 9.5 million million kilometres. C) 12 million million kilometres. D) 5.5 million million kilometres. Show Answer Correct Answer: B) 9.5 million million kilometres. 48. Which planet is an inner planet? A) Saturn. B) Neptune. C) Venus. D) Uranus. Show Answer Correct Answer: C) Venus. 49. 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. 50. The seasons are caused due to how the Earth is slanted. This is called the Earth's A) Axial tilt. B) Central lean. C) Radial pole. D) Middle slant. Show Answer Correct Answer: A) Axial tilt. 51. What planet is nicknamed the 'Red Planet'? A) Uranus. B) Mars. C) Mercury. D) Venus. Show Answer Correct Answer: B) Mars. 52. What are the main layers of Earth called? A) The center, middle and end. B) The center, rocks layer and water. C) Layer 1, Layer 2 and Layer 3. D) The core, the mantle, and the crust. Show Answer Correct Answer: D) The core, the mantle, and the crust. 53. The imaginary line running through the center of Earth. A) Moon. B) Orbit. C) Constellation. D) Axis. Show Answer Correct Answer: D) Axis. 54. The ..... is found right after Neptune's orbit. A) Oort Cloud. B) Kuiper Belt. C) Asteroid Belt. D) Meteroid belt. Show Answer Correct Answer: B) Kuiper Belt. 55. What factor determines the color of a star? A) Size. B) Shape. C) Magnitude. D) Temperature. Show Answer Correct Answer: D) Temperature. 56. Which of the following is one way stars are different from moons? A) Stars move around planets. B) Stars are smaller than moons. C) Stars are smaller than moons. D) Stars produce heat and light. Show Answer Correct Answer: D) Stars produce heat and light. 57. Which early astronomer was the first one to use a telescope to observe the night sky? A) Kepler. B) Newton. C) Copernicus. D) Galileo. Show Answer Correct Answer: D) Galileo. 58. An enormous system of gas, dust, and stars held together by gravity is called a ..... A) Galaxy. B) Star. C) Magnitude. D) Light-year. Show Answer Correct Answer: A) Galaxy. 59. What materials could not survive the heat where the rocky planets were formed? A) Gamma Rays. B) Plasma. C) Ice and Gas. D) Rocks. Show Answer Correct Answer: C) Ice and Gas. 60. Which scientist found that planetary orbits were elliptical? A) Copernicus. B) Kepler. C) Ptolemy. D) Galileo. 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