Test your basic knowledge |

Subject : 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 huge sphere of tenuous gas surrounding the nucleus of a comet






2. Mercury and venus






3. The high- temperatature outer layer of the sun






4. The universe is isotropic - homogeneous - and without beginning or end in time and space. If the universe is truly homogeneous then every line of sight will eventually end on a galaxy. If it has existed forever then there has been enough time for lig

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


5. The equation that describes how matter equates with energy






6. The act of removing an electron from an atom.






7. A cool collection of gas and dust silhouetted against a brighter background of stars and/or gas






8. The part of the Milky way that has on-going star formation






9. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas






10. The cosmological principle is the assumption that the universe is isotropic and homogeneous.The Big Bang assumes it to be a correct principle so that what we observe is exactly like What is too far away to be observed.






11. A fusion process in which a carbon atom transmutes to oxygen and back - creating a helium atom in the process






12. The projection of the Earth's equator onto the celestial sphere.






13. The fusion process that turns three helium nuclei into a carbon nucleus






14. A subatomic particle with a negative charge. It creates light.






15. When the Sun is farthest south of the celestial equator (About December 22)






16. The organization of clusters of galaxies into sheets and strings






17. A galaxy emitting large amounts of energy at long wavelengths.






18. Formed rapidly - collapsed slower into disk shape - star birth rate is low but lasts longer and ongoing - contain higher mass blue stars.






19. The number of protons in an atom.






20. A word used in astronomy to describe all elements besides hydrogen and helium






21. The oldest terrain on the moon






22. A rock or iron specimen that has fallen from space






23. Sulfurous volcanoes - pools of liquid sulfur - surface resembles cheese pizza ACTIVE SURFACE






24. The era when the ratio of matter to energy greatly favored matter. (verses radiation dominated universe where it was opaque. Matter is now dominated by gravity not photons)






25. An empirical scheme for predictin ghe orbital distances of planets






26. The law that predicts the possible types of spectra.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


27. Elliptical orbits that come inside orbit of the Earth.






28. The mass of an object divided by its volume






29. A fusion process in which protons build together to form helium






30. Disk dust grains are made of all the elements that are not in gaseous form in space which blocks starlight and causes interstellar extinction






31. The apparent path of the Sun through the stars on the celestial sphere.






32. The final end state of an intermediate to high mass star. An entity in which all the electrons have been pushed into the protons.






33. The place in the sky that the Earth's axis points toward (can be either north or south)






34. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object






35. Heavier elements such as iron - silicon - magnesium - sulfer - nickel






36. Long - meandering cliff formed when a planet surface cools and shrinks






37. In a FLAT UNIVERSE(our universe) - the curvature of space-time is ________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






38. A measure of the ability of a telescope to see fine detail






39. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.






40. The instant of time after the Big Bang when space and time obtained their characteristics. (t=10^-43 sec when gravity freezes out-instant when gravity started existing as a separate force)






41. The universe is isotropic - homogeneous - and without beginning or end in time and space. If the universe is truly homogeneous then every line of sight will eventually end on a galaxy. If it has existed forever then there has been enough time for lig

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


42. The amount of density needed to stop the universe from expanding and to begin the big crunch represented by Pc






43. Then the Sun moves from north to south across the celestial equator (about September 23)






44. Matter so dense that even light cannot escape its gravity






45. Largest moon in solar system - two differenet types of terrain - darker terrain is older - NOT ACTIVE SURFACE






46. The rotation of a star or planet at different speeds at its equator and poles






47. An energetic event taking place in the early universe






48. Infinitely long -> 10 cm






49. A galaxy sending out a stream of material from its nucleus






50. Radiation given off by electrons accelerating in a magnetic field