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 quantity measuring the stability of the Earth's atmosphere






2. 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.






3. The location of a supermassive black hole






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






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






6. Either Io -Europa - Ganymede - or Callisto






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






8. Originially thought to be stars emitting radio radiation but are now concluded to be nuclei of distant galaxies (same as radio galaxies aka emit streams of material)






9. The telescope configuration that has the focus placed at the back of the primary mirror






10. The location in the Milky Way where stars orbit like a solid wheel






11. Dark - reddish - low-pressure bands in Jupiter's atmosphere






12. 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






13. The science of measuring light energy by wavelength.






14. A distance measure determined by the shifting of a star against the background sky every 6 months.






15. The process responsible for creating the arms of flocculent spiral galaxies






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






17. Norhern lowlands- darker in color and have far fewer craters as if an ancient sea or ice field covered them. southern highlands- much higher in density of craters.






18. Approximate speed of light in a vacuum






19. A plot of star absolute magnitude verses spectral type.






20. 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.






21. Light-colored high-pressure bands in Jupiter's atmosphere






22. The organized effort to find life elsewhere in the universe. (Search for Extra-Terrestrial Intelligence)






23. The entity from which the whole universe is postulated to have come from.






24. Large bulge - tightly wound spiral arms - relatively few h2 regions and are smooth






25. The rate of expansion of the universe.






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






27. Where is the center of the expansion






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






29. Orbit in Jupiters orbit






30. Extends to a distance of 50000AU. Same objects as in the Kuiper belt-when they fall in toward the sun they become comets. Debris from comets hitting the Earths atmosphere cause meteor showers.






31. The distance between a lens and its focal plane






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






33. Europa






34. Hot cells of gas that rise and fall in the hotosphere






35. A continuous spectrum of light missing energy at a few wave lengths.






36. The slow wobble of the Earth on its rotation axis.






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






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






39. Mercury






40. 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






41. Highlands: rocks are made of lighter anorthosite (similar to old earth rocks) Maria: rocks made of heavy mare basalt (volcanic rock) everywhere else is loose regolith created by meteoric impact.






42. Mercury






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






44. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.






45. The source of the force that is accelerating the expansion rate of the universe.






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






47. The Greek philosopher responsible for making the stellar magnitude scale.






48. The equation that describes how matter equates with energy






49. A particle of light






50. Highlands: rocks are made of lighter anorthosite (similar to old earth rocks) Maria: rocks made of heavy mare basalt (volcanic rock) everywhere else is loose regolith created by meteoric impact.






Can you answer 50 questions in 15 minutes?



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