This quiz works best with JavaScript enabled. Home > General Knowledge > Science > Physics > Solar System – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Solar System Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A small, solid, rocky body that orbits the Sun. A) Comet. B) Meteoroid. C) Asteroid. D) Meteor. Show Answer Correct Answer: C) Asteroid. 2. Earth is located in which galaxy? A) Spiral. B) Barred spiral. C) Elliptical. D) Milky way. Show Answer Correct Answer: D) Milky way. 3. What is one fact about Mercury? A) It doesn't have enough gravity to keep an atmosphere. B) It is made mostly of gas. C) It has 2 irregularly shaped moons. D) It is the least dense of the planets. Show Answer Correct Answer: A) It doesn't have enough gravity to keep an atmosphere. 4. All the objects in the space like planets, the sun, the moon and the stars are A) Celestial bodies. B) Solar family. C) Solar systems. D) Satellites. Show Answer Correct Answer: A) Celestial bodies. 5. Why was Pluto demoted to a dwarf planet? A) It does not have enough gravity to be spherical. B) It does not orbit the sun. C) It has other objects in its area of orbit. D) It is smaller than Eris. Show Answer Correct Answer: C) It has other objects in its area of orbit. 6. One astronomical unit equals ..... A) The amount of time it takes Earth to orbit the Sun. B) The distance to the nearest star. C) The amount of time it takes light to travel from the Sun to Earth. D) The average distance from Earth to the Sun. Show Answer Correct Answer: D) The average distance from Earth to the Sun. 7. The gravity on this planet is 6 times stronger than Earth's gravity A) Jupiter. B) Neptune. C) Saturn. D) The sun. Show Answer Correct Answer: A) Jupiter. 8. Which are the four gaseous planets? A) Jupiter, Saturn, Uranus, Neptune. B) Ethan, Arik, Ashar, Jovan. C) Mercury, Venus, Earth, Mars. D) Jupiter, Saturn, Uranus, Pluto. Show Answer Correct Answer: A) Jupiter, Saturn, Uranus, Neptune. 9. The sun and all the planets and other bodies that revolve around it make up the A) Solar system. B) Universe. C) Neighborhood. D) Galaxy. Show Answer Correct Answer: A) Solar system. 10. The United States has landed a device on Mars. Using this device, which question can now be answered that could not be answered before? A) What is the soil like on Mars?. B) What shape and color is Mars?. C) How far away is Mars?. D) Does Mars have any moons?. Show Answer Correct Answer: A) What is the soil like on Mars?. 11. What is one fact about Uranus? A) It appears to be on its side because its axis is so tilted. B) It is the hottest of the planets. C) It has the largest and most complex ring system. D) It has dust storms that can last for months. Show Answer Correct Answer: A) It appears to be on its side because its axis is so tilted. 12. Large clump of ice, dust, and small rock particles that has a tail and orbits the sun on a long path A) Asteroids. B) Planet. C) Meteor. D) Comet. Show Answer Correct Answer: D) Comet. 13. What model of the solar system states the sun is the center A) Geocentric Model. B) Biocentric modal. C) Hydrocentric model. D) Heliocentric model. Show Answer Correct Answer: D) Heliocentric model. 14. Is the most distance planet from the sun. Know as an ice giant, has rings, and 13 moons. A) Saturn. B) Jupiter. C) Uranus. D) Neptune. Show Answer Correct Answer: D) Neptune. 15. The planet we live on is ..... A) Mars. B) Venus. C) Pluto. D) Earth. Show Answer Correct Answer: D) Earth. 16. What are the inner planets made of? A) Ammonia. B) Gas. C) Rock. D) Ice. Show Answer Correct Answer: C) Rock. 17. What caused the nebula to take on a disk shape? A) The cloud was shrinking. B) The cloud was heating up. C) The cloud was spinning. D) None of above. Show Answer Correct Answer: C) The cloud was spinning. 18. I am the sixth planet from the Sun. My nickname is 'The Ringed Planet'. A) Uranus. B) Jupiter. C) Neptune. D) Saturn. Show Answer Correct Answer: D) Saturn. 19. Earth's distance from the Sun ranges by approximately how much? A) 5 million km. B) 1 million km. C) 7 million km. D) 2 million km. Show Answer Correct Answer: A) 5 million km. 20. What is the solar system? A) The sun. B) The planets. C) The sun and planets ONLY. D) The sun, planets, and all other objects that orbit the sun. Show Answer Correct Answer: D) The sun, planets, and all other objects that orbit the sun. 21. Which planet in our solar system is closest to the Sun? A) Mercury. B) Jupiter. C) Saturn. D) Earth. Show Answer Correct Answer: A) Mercury. 22. Which planet is the only planet to spin on its side? A) Uranus. B) Neptune. C) Earth. D) Jupiter. Show Answer Correct Answer: A) Uranus. 23. Objects in space made up of hot gases, like the sun, are called ..... A) Rocks. B) Stars. C) Planets. D) Moons. Show Answer Correct Answer: B) Stars. 24. D largest planet in the solar system, has the largest ring system of any outer planet-rings are made of tiny bits of ice, rock, and dust A) Saturn. B) Uranus. C) Jupiter. D) Neptune. Show Answer Correct Answer: A) Saturn. 25. What is the length of Earth's period of revolution? A) 24 hours. B) 6 months. C) 365.25 days. D) 30-31 days. Show Answer Correct Answer: C) 365.25 days. 26. Which of the following would best describe Galileo? A) Arrested for looking for a new planet. B) Arrested because of his ideas about the solar system. C) Built the Hubble telescope. D) Wanted to be a doctor. Show Answer Correct Answer: B) Arrested because of his ideas about the solar system. 27. Which object has the strongest gravitational pull in our solar system and is found at the center of the solar system? A) Pluto. B) The Moon. C) The Earth. D) The Sun. Show Answer Correct Answer: D) The Sun. 28. Sam, a Scientist, think the ..... became instinct when one of the comets came crushing into planet Earth. A) Giraffes. B) White shark. C) Dinosaurs. D) None of above. Show Answer Correct Answer: C) Dinosaurs. 29. Which list of planets shows the inner planets in correct order from the Sun? A) Venus, Mercury, Mars, Earth. B) Mars, Venus, Earth, Mercury. C) Mercury, Venus, Earth, Mars. D) Earth, Mars, Venus, Mercury. Show Answer Correct Answer: C) Mercury, Venus, Earth, Mars. 30. What does Ly stand for? A) Lightning McQueen. B) Lasso the young horse. C) Light years. D) Kilometers. Show Answer Correct Answer: C) Light years. 31. What happens when Earth rotates? A) The shape of the sun changes. B) The length of a shadow changes. C) The number of hours in a day changes. D) The moon falls out of the sky. Show Answer Correct Answer: B) The length of a shadow changes. 32. When does a waning moon occur? A) Just after a full moon. B) Just after a crescent moon. C) When all of the Moon's near side is dark. D) Between a first-quarter moon and a new moon. Show Answer Correct Answer: A) Just after a full moon. 33. Apparent magnitude is affected by a star's A) Distance from Earth. B) Size. C) Both distance and size. D) None of these. Show Answer Correct Answer: C) Both distance and size. 34. How do the inner planets differ from the outer planets? A) They are spaced more closely together. B) They do not have any moons. C) They are made of lighter elements. D) They are extremely large. Show Answer Correct Answer: A) They are spaced more closely together. 35. Why do stars in a constellation seem to stay in one position? A) The Stars orbit the sun like the Earth does. B) The Stars do not orbit the sun or earth. C) The Stars orbit the earth like the moon. D) None of above. Show Answer Correct Answer: B) The Stars do not orbit the sun or earth. 36. Why is a space suit insulated? A) So they can use the bathroom in space. B) So they can breathe. C) Regulate temperature-protect against hot/cold. D) To keep the astronaut from dehydrating. Show Answer Correct Answer: C) Regulate temperature-protect against hot/cold. 37. The four inner planets are ..... A) Rocky and small. B) Very large and made of ice. C) Small and made of ice. D) Very large and made of gases. Show Answer Correct Answer: A) Rocky and small. 38. Why is Earth's magnetic field important to the survival of life? A) The magnetic field holds in oxygen, nitrogen, argon and carbon dioxide. B) The magnetic field is a like a bubble around the Earth. C) The magnetic field shields Earth from harmful particles that stream from the Sun. D) None of above. Show Answer Correct Answer: C) The magnetic field shields Earth from harmful particles that stream from the Sun. 39. How many stars are in the solar system? A) Millions. B) Billions. C) Thousands. D) One. Show Answer Correct Answer: D) One. 40. What is the order of the distances of the terrestrial planets from the Sun, from closest to farthest? A) Mercury, Earth, Venus, Mars. B) Venus, Earth, Mars, Mercury. C) Mercury, Venus, Earth, Mars. D) Mars, Earth, Venus, Mercury. Show Answer Correct Answer: C) Mercury, Venus, Earth, Mars. 41. How many miles is Earth from the sun? A) 39 million. B) 82 million. C) 93 million. D) 72 million. Show Answer Correct Answer: C) 93 million. 42. Which planet do the moons Oberon and Titania belong to? A) Earth. B) Jupiter. C) Uranus. D) Venus. Show Answer Correct Answer: C) Uranus. 43. These are the 4 planets (Mercury, Venus, Earth, Mars) are known as A) Gas giants. B) Dwarf planets. C) Solar planets. D) Terrestrial planets. Show Answer Correct Answer: D) Terrestrial planets. 44. Which is NOT an inner planet? A) Jupiter. B) Earth. C) Mercury. D) Venus. Show Answer Correct Answer: A) Jupiter. 45. Approximately how old is the universe? A) 10.3 billion years. B) 5 billion years. C) 12.5 billion years. D) 13.7 billion years. Show Answer Correct Answer: D) 13.7 billion years. 46. Which of the following is the most accurate description of the relationship between components of the universe? A) Solar systems contain many galaxies. B) Stars contain a few galaxies. C) Starts contain several solar systems. D) Galaxies contain many stars. Show Answer Correct Answer: D) Galaxies contain many stars. 47. The sun is made up of six different layers. Three of these layers make up the interior of the sun. The remaining three layers make up the sun's atmosphere. Which is the innermost layer of the sun? A) Corona. B) Chromosphere. C) Convection zone. D) Core. Show Answer Correct Answer: D) Core. 48. One year on Mercury is about 88 Earth days. This means that is takes 88 Earth days for Mercury to ..... A) Travel in orbit around its moon. B) Make one complete orbit around the sun. C) Switch orbits with the nearest planets. D) Complete one rotation. Show Answer Correct Answer: B) Make one complete orbit around the sun. 49. The distance an object is above the surface of the Earth is called. A) Height. B) Sea level. C) Altitude. D) Elevation. Show Answer Correct Answer: C) Altitude. 50. Most likely due to a massive collision, this planet rotates from top to bottom. A) Saturn. B) Neptune. C) Venus. D) Uranus. Show Answer Correct Answer: D) Uranus. 51. Which one is the fastest rotation? A) Saturn. B) Earth. C) Jupiter. D) Uranus. Show Answer Correct Answer: C) Jupiter. 52. What force acted on the massive nebula to collapse it and eventually form our sun? A) Electrostatic force. B) Weak force. C) Gravity. D) Strong force. Show Answer Correct Answer: C) Gravity. 53. Dylan observes a fully lit moon. When can he expect to see the moon look like this again? A) In about 12 hours. B) In about 30 days. C) In about 24 hours. D) In about 15 days. Show Answer Correct Answer: B) In about 30 days. 54. When you look up into the sky, why is the sun clearly the brightest? A) It's the hottest star. B) It's the farthest star. C) It's the closest star. D) It's our sun. Show Answer Correct Answer: C) It's the closest star. 55. What are comets mostly made of? A) Rusty metal. B) Hot, liquid rock. C) Poisonous liquid. D) Dirty ice and dust. Show Answer Correct Answer: D) Dirty ice and dust. 56. What is the only planet that can sustain life? A) Mercury. B) Venus. C) Earth. D) Mars. Show Answer Correct Answer: C) Earth. 57. Chunk of rock that strikes the surface of a planet or moon A) Meteorite. B) Meteor. C) Comet. D) Meteoroid. Show Answer Correct Answer: A) Meteorite. 58. Which gas is 21% of Earth's Atmosphere? A) Oxygen. B) Argon. C) Ozone. D) Nitrogen. Show Answer Correct Answer: A) Oxygen. 59. Correct statement about probes is ..... A) They are controlled from space station. B) They carried Hubble Space Telescope. C) They are unmanned spacecraft. D) Scientist live there. Show Answer Correct Answer: C) They are unmanned spacecraft. 60. Planets' orbit the Sun in what shape? A) A perfect circle. B) An ellipse. C) An eclipse. D) A parallelogram. Show Answer Correct Answer: B) An ellipse. ← 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 8Solar System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books