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






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. Mercury - Venus - Earth - Mars






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






5. Ancient stream channels - flood planes - and sedimentary-type rock. Frozen water is found in the polar ice caps and in the soil.






6. The amount an image is enlarged by a telescope






7. 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






8. A particle of light






9. Either Io -Europa - Ganymede - or Callisto






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






11. A planet orbiting about a distant star






12. Jupiter






13. The process similar to conduction by which energy moves from the solar core to the convective layer






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






15. Wave- only waves cause an interference pattern when passing through a double slit - particle- only particles deposit energy at specific locations (the way an image builds up on digital camera)






16. A two-filter measure of the color - and hence temperature - of a star.






17. Jupiter - Saturn - Uranus - Neptune






18. A planet that is closer to the sun than the earth






19. An element of a highly efficient - two-dimensional electronic light detector






20. VENUS






21. The powdered stone fragments that make up the lunar 'soil'






22. Places in the asteroid belt - caused by resonance with Jupiter - where there are no asteroids






23. Clouds of low density gas often found glowing faintly on either side of an AGN.






24. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting






25. The family of radiant energy that includes light as a subset






26. The rotation period of the Earth measured relative to the Sun.






27. The location in an H-are diagram of a star cluster - where stars have just left the main sequence. Used to estimate the cluster age.






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






29. The nuclei of very distant galaxies. Likely a manifestation of supermassive black holes






30. A collection of comets in the plane of the solar system - located beyond the orbit of Pluto






31. The study of the universe as a whole.






32. An efficient - two-dimensional electronic light detector. Common in digital cameras - they revolutionized astronomical imaging






33. Centered on the sun.






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






35. The gap etween saturn's A and B rings






36. An entity that is likely in the nucleus of most - if not all - galaxies.






37. 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:






38. Galaxies whose nuclei emit jets of materil at high speeds. material comes from supermassive black holes






39. The layer of the sun just above the photosphere






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






41. A bridge of material held in position above the solar surface. They can remain for hours even days






42. A bright area of higher temperature that often proceeds the formation of sunspots.






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






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






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






46. Saturn






47. 10^2 nm 10^7 nm






48. The faint glow of light left over from the Big Bang. cosmic microwave background are the photons that remain after the big bang that have not turned into matter.






49. A large and bright but cool star.






50. Places in the asteroid belt - caused by resonance with Jupiter - where there are no asteroids