This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Solar System – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Solar System Quiz 10 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the hottest planet in our solar system (because of its extreme greenhouse effect)? A) Neptune. B) Venus. C) Mercury. D) Earth. Show Answer Correct Answer: B) Venus. 2. Which star would look brightest? A) A distant dim star. B) A distant bright star. C) A nearby dim star. D) A nearby bright star. Show Answer Correct Answer: D) A nearby bright star. 3. Which correctly pairs the planet pictured with its nickname? A) Venus-Swift Planet. B) Mars-Red Planet. C) Jupiter-Swift Planet. D) Mercury-Red Planet. Show Answer Correct Answer: B) Mars-Red Planet. 4. Which type of technology would you use to see far away objects? A) Satellite. B) Computer. C) Rover. D) Telescope. Show Answer Correct Answer: D) Telescope. 5. What is the closest star close to earth? A) Orion. B) The big dipper. C) The sun. D) The moon. Show Answer Correct Answer: C) The sun. 6. The center of the nebula became the SUN A) When fusion started in the Sun. B) When it started glowing. C) After the outer planets formed. D) After the inner planets formed. Show Answer Correct Answer: A) When fusion started in the Sun. 7. The Word "Geo" Means? A) Back. B) Sun. C) Earth. D) Milky way. Show Answer Correct Answer: C) Earth. 8. Pick the correct order A) Mercury, Venus, Earth, Mars. B) Mercury, Earth, Venus, Mars. C) Mars, Earth, Venus, Mercury. D) Earth, Mars, Mercury, Venus. Show Answer Correct Answer: A) Mercury, Venus, Earth, Mars. 9. Why is a year on Mars longer than a year on Earth? A) Mars is farther from the Sun than Earth. B) Mars has a greater axial tilt than Earth. C) Mars has a thinner atmosphere than Earth. D) Mars has a longer period of rotation than Earth. Show Answer Correct Answer: D) Mars has a longer period of rotation than Earth. 10. Which planet contains the Great Red Spot? A) Earth. B) Saturn. C) Neptune. D) Jupiter. Show Answer Correct Answer: D) Jupiter. 11. There are ..... planets in our solar system. A) 8. B) 7. C) 9. D) 6. Show Answer Correct Answer: A) 8. 12. People see different phases of the moon, because A) The Moon is sometimes behind clouds. B) The Moon revolves around the Earth. C) The Moon changes its shape. D) The Moon is a flat surface. Show Answer Correct Answer: B) The Moon revolves around the Earth. 13. The sun and all of the bodies that revolve around it is the ..... A) Solar System. B) Comet. C) Asteroid. D) Planet. Show Answer Correct Answer: A) Solar System. 14. To escape Earth's gravity and establish an orbit around the Earth, a spaceship has to reach A) Exceptional Velocity. B) Orbital Velocity. C) Escape Velocity. D) The speed of sound. Show Answer Correct Answer: B) Orbital Velocity. 15. The largest volcano in the Solar System is called Olympus Mons. Where is it? A) Earth. B) Mars. C) Venus. D) Jupiter. Show Answer Correct Answer: B) Mars. 16. Now that Pluto is no longer included, how many planets are there in the Solar System? A) 2. B) 9. C) 4. D) 8. Show Answer Correct Answer: D) 8. 17. What do Jupiter, Saturn, Uranus, and Neptune have in common? A) They all have rocky surfaces. B) They all appear to be similar to Earth. C) They all are gaseous planets. D) They all appear to be made of rock and ice. Show Answer Correct Answer: C) They all are gaseous planets. 18. Which planet is the only planet that spins on its side as it orbits the Sun? A) Neptune. B) Mercury. C) Uranus. D) Venus. Show Answer Correct Answer: C) Uranus. 19. Which type of planets were the first to form? A) Inner Planets. B) Outer Planets. C) The Planets formed randomly. D) None of above. Show Answer Correct Answer: B) Outer Planets. 20. How long does Earth's orbit around the sun take? A) 365 and 1/4 days. B) 360 days. C) 24 hours. D) 2 years. Show Answer Correct Answer: A) 365 and 1/4 days. 21. Which statement is NOT true about Pluto? A) It has been reclassified to be called a dwarf planet. B) Its orbit is at an angle to the orbits of the 8 planets. C) It is the 9th planet. D) It sometimes is closer to the sun than Neptune is. Show Answer Correct Answer: C) It is the 9th planet. 22. The smallest and nearest planet to the sun-because of this planets very thin atmosphere, it scorching hot on the side facing the sun and freezing cold on the side that faces away A) Mars. B) Mercury. C) Venus. D) Earth. Show Answer Correct Answer: B) Mercury. 23. Because of both gravity and centripetal force, planets move in a particular manner around the sun. Which term describes the shape of the orbit of a planet? A) Circle. B) Sphere. C) Perihelion. D) Ellipse. Show Answer Correct Answer: D) Ellipse. 24. A ..... is a huge system of gas, dust, stars, and objects orbiting stars that is held together by the force of gravity. A) Meteor. B) Galaxy. C) Comet. D) Gas giant. Show Answer Correct Answer: B) Galaxy. 25. Which term best describes the shape of the orbits of planets in our solar system? A) Centripetal. B) Spherical. C) Elliptical. D) Circular. Show Answer Correct Answer: C) Elliptical. 26. Which type of planet is mostly composed of rock and metal? A) Gas giants. B) Mini Planet. C) Inner Planet. D) Outer Planet. Show Answer Correct Answer: C) Inner Planet. 27. How is Venus different from Jupiter? A) Jupiter is a gas giant, Venus is a terrestrial planet. B) Jupiter has no moons, Venus has two moons. C) Jupiter is a planet, Venus is a large asteroid. D) Jupiter is a terrestrial planet, Venus is a gas giant. Show Answer Correct Answer: A) Jupiter is a gas giant, Venus is a terrestrial planet. 28. Pieces of rock that break off of asteroids and travel through space A) Meteoroid. B) Meteor. C) Meteorite. D) None of above. Show Answer Correct Answer: A) Meteoroid. 29. What are the 4 inner planets? A) Mercury, Venus Earth, Mars. B) Mars, Jupiter, Pluto, Uranus. C) Neptune, Uranus, Saturn, Jupiter. D) Mercury, Earth, Jupiter, Saturn. Show Answer Correct Answer: A) Mercury, Venus Earth, Mars. 30. This is the eighth (last) planet from the Sun; it is deep dark blue in color. A) Earth. B) Jupiter. C) Mercury. D) Neptune. Show Answer Correct Answer: D) Neptune. 31. If you were to conduct an experiment using a ball, a flashlight, and a dark room, what would you be investigating? A) Why there are dark spots on the sun. B) The phases of the moon. C) The speed of light. D) The atmosphere of Earth. Show Answer Correct Answer: B) The phases of the moon. 32. The length of a year on a planet is best explained by A) The seasons. B) The Sun rotating on its axis. C) The planet rotating on its axis. D) The revolution around the Sun. Show Answer Correct Answer: D) The revolution around the Sun. 33. What is the only planet known to contain life? A) Mars. B) Uranus. C) Earth. D) Neptune. Show Answer Correct Answer: C) Earth. 34. How would the planets move if the sun had no gravity? A) The planets would move off in a straight line without the sun. B) The planets would stop moving without the sun. C) The planets would continue to move in orbit without the sun. D) None of above. Show Answer Correct Answer: A) The planets would move off in a straight line without the sun. 35. Do you think dwarf planets are important? A) Yes, They are leftovers from the formation of the solar system. B) No. They don't mean anything. C) None of the above. D) All of the above. Show Answer Correct Answer: A) Yes, They are leftovers from the formation of the solar system. 36. Which of the following planets are the gas giants, outer planets? A) Mercury, Venus, mars. B) Jupiter, Saturn, uranus. C) Mars, Jupiter, venus. D) None of above. Show Answer Correct Answer: B) Jupiter, Saturn, uranus. 37. Your friend asks you to help with an investigation using a ball, a flashlight, and a dark room. What might you be investigating? A) The phases of the moon. B) The speed of light. C) The atmosphere of Earth. D) Why there are dark spots on the sun. Show Answer Correct Answer: A) The phases of the moon. 38. Which of these characteristics of the earth best explains the change of seasons? A) The distance from the earth to the sun. B) The diameter of the earth. C) The speed of the earth's rotation. D) The tilt of Earth's axis. Show Answer Correct Answer: D) The tilt of Earth's axis. 39. Most asteroids are located in the area between the orbits of ..... A) Earth and Mars. B) Jupiter and Saturn. C) Mars and Jupiter. D) Mercury and Venus. Show Answer Correct Answer: C) Mars and Jupiter. 40. Why is Mercury very dry and hot? A) It is the largest planet. B) It has a hot, molten center. C) It is the smallest planet. D) It is the closest planet to the sun. Show Answer Correct Answer: D) It is the closest planet to the sun. 41. Choose the planet closest to the sun. A) Neptune. B) Pluto. C) Mercury. D) Earth. Show Answer Correct Answer: C) Mercury. 42. Which is the BIGGEST planet? A) Earth. B) Jupiter. C) Uranus. D) None of above. Show Answer Correct Answer: B) Jupiter. 43. A small rocky object orbiting the sun. A) Meteor. B) Moon. C) Asteroid. D) Comet. Show Answer Correct Answer: C) Asteroid. 44. What causes the seasons to change? A) The earth revolves around the sun. B) The earth's axis is tilted. C) Wind patterns on earth. D) The earth rotates on its axis. Show Answer Correct Answer: B) The earth's axis is tilted. 45. The unit of measurement for distances OUTSIDE the solar system is a ..... A) Astronomical Unit. B) Light-year. C) Kilometer. D) Apparent Magnitude. Show Answer Correct Answer: B) Light-year. 46. What is a comet? A) A streak of light caused by a chunk of matter that enters Earth's atmosphere and gets heated by the air. B) A satellite of Earth. C) A relatively small rocky object that orbits the sun. D) A small orbitting body made up of dust, ice & frozen gases. Show Answer Correct Answer: D) A small orbitting body made up of dust, ice & frozen gases. 47. Which is the farthest planet to the Sun? A) Saturn. B) Jupiter. C) Uranus. D) Neptune. Show Answer Correct Answer: D) Neptune. 48. Which planet has many moons and the Great Red Spot? A) Mars. B) Jupiter. C) Saturn. D) Mercury. Show Answer Correct Answer: B) Jupiter. 49. Which planet looks like a blue, white, and brown marble? A) Uranus. B) Neptune. C) Venus. D) Earth. Show Answer Correct Answer: D) Earth. 50. How do astronauts protect their bone health while in space? A) Special space suits. B) Special medicine. C) Drink lots of fluids. D) Exercise with equipment. Show Answer Correct Answer: D) Exercise with equipment. 51. What is one scientific idea about how water came to Earth? A) It came from water-containing meteorites smashing into the planet. B) It was always there. C) We don't have water on our planet. D) Water floating in space rained down on the planet. Show Answer Correct Answer: A) It came from water-containing meteorites smashing into the planet. 52. What six things make up our Solar System? A) Galaxies, Planets, Stars, Asteroids, Planets, Moons. B) Planets, Stars, Galaxies, Comets, Meteors, Sun. C) Sun, Planets, Moons, Stars, Asteroids, Comets. D) Sun, Planets, Moons, Asteroids, Comets, Meteors. Show Answer Correct Answer: D) Sun, Planets, Moons, Asteroids, Comets, Meteors. 53. What is a meteoroid that has hit Earth's surface? A) Meteorite. B) Asteroid. C) Comet. D) Meteor. Show Answer Correct Answer: A) Meteorite. 54. All of the following are found in our solar system except. A) The sun. B) Jupiter. C) The Milky Way. D) Comets and asteroids. Show Answer Correct Answer: C) The Milky Way. 55. Polish astronomer who prove that the Sun was at the center of our solar system is ..... A) Copernicus. B) Varahamihira. C) Aryabhata. D) Galileo. Show Answer Correct Answer: A) Copernicus. 56. Which planet has more gravity? A) Mercury. B) Jupiter. C) Neptune. D) Earth. Show Answer Correct Answer: B) Jupiter. 57. Almost Earth's twin in size and mass, this planet has very thick atmosphere. A) Mars. B) Mercury. C) Venus. D) Neptune. Show Answer Correct Answer: C) Venus. 58. Which of the following best describes the inner planets of the solar system? A) Large gas planets with thick atmospheres. B) Small planets of ice with elliptical orbits. C) Dense, rocky planets with few moons. D) Barren planets with rings of gas and dust. Show Answer Correct Answer: C) Dense, rocky planets with few moons. 59. About how many years did it take for the Voyager to leave the solar system? A) About 47. B) About 35. C) About 12. D) No one cares. Show Answer Correct Answer: B) About 35. 60. Which planet has a giant red spot? A) Uranus. B) Neptune. C) Jupiter. D) Saturn. Show Answer Correct Answer: C) Jupiter. ← PreviousNext →Related QuizzesScience QuizzesGeneral Knowledge QuizzesSolar System Quiz 1Solar System Quiz 2Solar System Quiz 3Solar System Quiz 4Solar System Quiz 5Solar System Quiz 6Solar System Quiz 7Solar System Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books