Test your basic knowledge |

CSET Astronomy

Subjects : cset, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Super dense stars that are as massive as the sun but twice as small






2. Neutron stars that spin rapidly and release radio waves






3. A large chunk of rock that revolves around the Sun and is part of a large belt between Mars and Jupiter






4. A group of planets that includes Earth that started out as a large gas cloud






5. Areas at the outer edge of the solar system where small bodies of comets are thought to have originated






6. Our home planet - which has the right amount of atmosphere to support life






7. Galaxies shaped like round or flattened spheres






8. Planets that are made from hunks of rock like Earth






9. Form of galaxy that looks like a spiral with a bulge n the middle; like the Milky Way






10. The longest day of the season because the northern hemisphere is pointed directly at the sun






11. Also known as the dwarf planet and was demoted from being an official planet in 2002






12. The shortest day of the season because the northern hemisphere is pointed farthest away from the sun






13. The first day of fall because the earth's axis is perpendicular to the sun's rays






14. Clouds of gas and dust that form stars






15. A star with a heavy mass dies by combining its protons and electrons into neutrons






16. The first day of spring because the earth's axis is perpendicular to the sun's rays






17. Small gas giant with gray rings and 25 moons on it






18. The planet that is the closest to the sun. It has a hot side and a cold side






19. Planets that are made of gas clouds like Jupiter






20. Change in frequency of a wave for an observer moving relative to the source of the wave.






21. Waves that are moving closer to the Earth have shorter wavelengths






22. The inside of the Sun - which is 14 million degrees Celsius






23. The sun's atmosphere






24. Stars that are preparing to die when they run out of hydrogen in their core by blowing up bigger than their size as the surface cools down






25. Result of a collapsed star or collapsed group of stars that light cannot escape






26. Gigantic gas giant that has large rings and 45 moons orbiting it






27. Gas giant that is very bluish and named after the Roman God of the sea and has a stormy gray dark spot






28. The universe started 14 billion years ago and everything was packed in a dense point called a singularity that exploded






29. The way that the earth is split in 24 ways which run north - south because the earth spins at 15 degrees per hour






30. Has 200 to 400 billion stars in its galaxy - including the Sun






31. The arm that the Earth is a part of






32. The idea that the universe appeared without a beginning






33. Clumps of ice and dust that orbit the sun






34. The time zone at 0 degrees longitude on the Earth






35. Galaxies that have undefined shapes and made up of young stars - gas and dust






36. The period from one full moon to another full moon






37. Phenomenon when the moon passes over the sun and the earth






38. Planet referred to as Earth's sister because it is the same size as Earth; contains a lot of sulfuric acid






39. Red planet that has a lot of iron on it and has the tallest mountain in the solar system: the Olympus Mons






40. When the moon and the sun are on the opposite sides of the earth






41. Process in which a star dies by explosion






42. A star's core dies out by collapsing until it forms a tiny area of infinite density






43. Objects moving farther from the Earth have a longer wavelength






44. The dark spots on the moons






45. Galaxies that are shaped like discs and contain middle aged stars and a moderate amount of gas and dust






46. The largest planet that is also a gas giant and has a permanent storm on its surface known as the Big Red Spot






47. Strange dark patches found on the sun that are caused by the sun's electromagnetic field






48. A baby star






49. The surface of the Sun - which is close to 6000 degrees Celsius






50. The lifeline of a star