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. Material that shoots rapidly out into space. Flares cause Auroras






2. A particle of light.






3. 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






4. A volume of space where few - if any - galaxies are located






5. Mercury and venus






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






7. 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)






8. Matter that reveals itself only through its gravitational attraction






9. 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.






10. The philosophical stand that says a simpler explanation is more likely to be correct than a complicated one.

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


11. The shadow area behind the Earth or Moon where the Sun is completely obscured.






12. The elementary building blocks from which protons and neutrons are formed.






13. Rich= dense crowded cores of galaxies - poor= few members and a looser organization of galaxies






14. Mercury - Venus - Earth - Mars






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






16. The 'edge' of the universe. Light beyond this has not reached us yet.






17. Form honeycomb like patterns surrounding empty or nearly empty voids.






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






19. Population 1- similar to the sun and 2% of elements are metal - Population 2- formed before gas was metal- only a fraction of mass is metal.






20. The shadow behind the Earth or Moon where the Sun is partially obscured.






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






22. Matter that reveals itself only through its gravitational attraction.






23. What do we think the actual fate of the universe will be and why do we think this?






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






25. The rock that makes up the lunar maria






26. A younger cluster of stars - found in the galaxy disk






27. VENUS






28. In a CLOSED UNIVERSE - the curvature of space-time is _________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






29. 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.






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






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






32. Star speed at outer edge of galaxy should begin to diminish - but they dont so we guess that this means there is increasing force (aka dark matter)






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






34. A planet that is farther from the sun than the Earth is






35. The layer of the sun just above the photosphere






36. The opaque universe that existed for 300000 years after the Big Bang. (photons outnumbered nuclei by 1 billion to one - so less light)






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






38. A particle of light.






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






40. The surface of the sun






41. Is there water on the moon?






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






43. The line on an H-are diagram going from upper left to lower right where normal stars of different masses reside.






44. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:






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






46. The point where an inferior planet is as far away from the sun as it can be (as seen from the Earth)






47. In Ptolemy's geocentric solar system - the small circle on which a planet moved.






48. IO






49. Matter that reveals itself only through its gravitational attraction.






50. Atmosphere blocks high energy wavelengths - atmosphere blurs optical radiation - atmosphere absorbs some radiation at all wavelengths even when it gets through.