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. 1. We see rapid movements or high energy radiation coming at some level from the nuclei of nearly every galaxy we have looked at. 2. We suspect that the creation of these supermassive black holes is part of the galaxy formation process.






2. The material from which the solar system formed






3. 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)






4. Light scattered through the atmosphere that degrades astronomical images






5. A faint - remarkably uniform distribution of radiation in space






6. The imaginary sphere centered on the Earth that hols the stars.






7. The rock that makes up the lunar highlands






8. A high-pressure bulge in Neptune's southern hemisphere






9. When the Moon entirely blocks the Sun.






10. A phenomenon seen when the Earth passes through the orbit of a burned out comet






11. Why does the earth have few craters while the moon has many?






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






13. Electromagnetic Radiation






14. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter






15. The gap inthe outer portion of Saturn's A ring






16. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the






17. A small round distribution of gas surrounding a dying star






18. The lens in a telescope used to determine the magnification






19. Arcs of increased mass concentration that slow stars and gas down as they orbit through which cause the formation of stars.






20. A term referring to the orbital character of stars near the Sun






21. When material is heated and moves taking the heat energy with it






22. 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


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






24. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.






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






26. The displacement of spectral lines to redder colors caused by the expansion of the universe.






27. Cold aggregates of gas - large and contain a huge amount of matter - so cold that molecules stick together to form molecules.






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






29. The time when the universe cooled sufficiently for atoms to exist. radiation dominated= first 300000 years - THEN era of recombination turns into matter dominated for next.






30. 10 nm 10^2 nm






31. In what chemical form are jupiters nitrogen - carbon and oxygen?






32. Radiation emitted when charged particles spiral rapidly in a magnetic field. come off of jets from black holes.






33. Centered on the Earth






34. The light produced when particles from the sun collide with atmospheric molecules






35. Light-flaky crust - convective currents cause it to wrinkle and bunch (1/5 of surface). uniform cratering suggests lack of weathering and tectonics. volcanoes are flat due to atmospheric pressure.






36. Old - pock marked - icy surface - interior is not differentiated - geologically dead - NOT ACTIVE SURFACE






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






38. A huge sphere of tenuous gas surrounding the nucleus of a comet






39. The point where a superior planet is as far away from the sun as it can be (as seen from the Earth)






40. Venus






41. Approximate speed of light in a vacuum






42. A long-lived high-pressure bulge in Jupiter's southern hemisphere






43. Distribution of dust (tells us disk is thin) - find distances to O&B stars and H2 regions (arms are sights of star formation and OB stars live and die at location of birth) -Milky way has four arms. Sun is in spur apart from arms.






44. The linear correlation between the rate of the expansion of the universe and distance. Says that as galaxies get farther away in space - the speed with which they recede from us increases. So we can measure the amount of recessional velocity and use






45. The rate of expansion of the universe.






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






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






48. A particle of light






49. The mass of an object divided by its volume






50. The material from which the solar system formed