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. A region that is so dense that it will trap stuff in it forever. It is started either by the death of a large star or when millions of matter clump together






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






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






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






5. Super dense stars that are as massive as the sun but twice as small






6. Planets that are made of gas clouds like Jupiter






7. Clouds of gas and dust that form stars






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






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






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






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






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






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






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






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






16. Enormous jets of gas that shoot out of thes un






17. 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






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






19. A baby star






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






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






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






23. The lifeline of a star






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






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






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






27. The sun's atmosphere






28. Process in which a star dies by explosion






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






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






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






32. Galaxies shaped like round or flattened spheres






33. Neutron stars that spin rapidly and release radio waves






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






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






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






37. The dark spots on the moons






38. The arm that the Earth is a part of






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






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






41. The idea that the universe appeared without a beginning






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






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






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






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






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






47. Clumps of ice and dust that orbit the sun






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






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






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