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. Small moons that maintain the shape of rings around Saturn and Uranus






2. A method of finding a star's distance from its absolute magnitude and spectral type or color.






3. Sudden blasts of gamma radiation from a very distant galaxy caused possibly by a supernova explosion.






4. The name for the only seriously considered theory of the universe.






5. 10 nm 10^2 nm






6. The amount an image is enlarged by a telescope






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






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






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






10. The oldest grouping of stars - found in the galaxy halo






11. A star that erratically and explosively brightens and dims






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






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






14. 1μm 100 nm






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






16. When massive objects bend space and time enough to create multiple images of an object located behind them






17. The point in its orbit where a planet is farthest from the sun






18. The relation that tells how light dims with distance.






19. The apparent backward motion of a planet against the background of stars.






20. The surface of the sun






21. Orbit in Jupiters orbit






22. Dying large-mass stars lose their outer layers in a violent explosion creating large - chaotic remnants. these brighten like nova but are so much brighter and only occur ONCE PER STAR






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






24. When massive objects bend space and time enough to create multiple images of an object located behind them






25. Venus






26. The most mass a white dwarf can have before collapsing to a neutron star






27. 10^2 nm 10^7 nm






28. A streak of light in the atmosphere






29. When the Sun is farthest north of the celestial equator (about June 22)






30. Neptune or uranus






31. A quantity measuring the stability of the Earth's atmosphere






32. The dark - relativley smooth areas on the moon; Latin for sea






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






34. The normal eastward movement of a planet against the background of hte distant stars.






35. Venus






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






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






38. Dying large-mass stars lose their outer layers in a violent explosion creating large - chaotic remnants. these brighten like nova but are so much brighter and only occur ONCE PER STAR






39. Saying that the sky should not get dark at night because all lines of sight end on a star meaning that the night sky should be ablaze BUT the big bang - because the universe had a beginning - says that the sky gets dark because out in space - galaxie

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






41. Sc galaxies






42. The temp at which a substance in the vacuum of space solidifies






43. An evolved star - past the helium flash that is burning helium to carbon in it's cores






44. Centered on the Earth






45. VENUS






46. The dark - relativley smooth areas on the moon; Latin for sea






47. A star fusing hydrogen to helium in it's core






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






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






50. Hurricane-like vortex in southern-hemisphere winds to north and south blow in opposite directions which keep it spinning and with no subsurface features like mountians it persists.