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. Ganymede






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






3. The rotation period of the Earth measured relative to the stars.






4. The location around an atom where an electron resides.






5. Very center of galaxy. suggestion of a black hole






6. Sc galaxies where star formation and destruction is so rapid that supernova explosions are mainly responsible for compressing gas to create new stars.






7. Milky way galaxy is a member - a small poor cluster-about 30 galaxies






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






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






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






11. Venus (retrograde)






12. A term referring to Jupiter-like planets






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






14. The location around an atom where an electron resides.






15. The first rock-sized bodies that formed in the solar nebula from dust grains






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






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






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






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






20. The law stating that hotter blackbodies look bluer than cooler blackbodies.

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21. The north-south line passing directly overhead through the zenith.






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






23. Young clusters in disk are irregularly shaped since they have no time to relax into the rounder relaxed shape of globular clusters-will constantly be torn apart and assimilated.






24. Massive compact halo objects (MACHO) - weakly interacting massive particles (WIMPY's)






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






26. A particle of light






27. A nearby galaxy with a quasar-like nucleus. closer but less bright than quasars-weaker






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






29. The process of acquiring material






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






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






32. If stars have diff orbital periods - than any arms formed by stars will wind into a tight spiral pattern (billion yrs or so)






33. A word meaning 'the same everywhere throughout.'






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






35. The lens that gathers the light in a refractor






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






37. Earth






38. How did Earth come to have an oxygen rich atmosphere?






39. The distance a moon can be from a planet before shattering from tidal forces






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






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






42. Any change in the speed or direction of an object's motion






43. 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.






44. The science of measuring the apparent magnitudes of stars by imaging them through different filters.






45. The mirror that determines the focus configuration of a reflector






46. A large and bright but cool star.






47. Light scattered through the atmosphere that degrades astronomical images






48. Elliptical orbits that come inside orbit of the Earth.






49. 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






50. The mix of pure photon energy that emerged at the start of the universe.