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






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






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






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






5. The science of measuring light energy by wavelength.






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






7. Why does the earth have few craters while the moon has many?






8. Either Io -Europa - Ganymede - or Callisto






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






10. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.






11. The law that predicts the possible types of spectra.

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






13. Jupiter






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






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






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






17. The distance light travels in one year (=9.46x10^12km).






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






19. A very dense - highly populated cluster of galaxies






20. The act of removing an electron from an atom.






21. Mercury - Venus - Earth - Mars






22. A technique using computer-controlled mirrors to sharpen images distorted by the atmosphere






23. Ganymede and Titan






24. As open clusters age - they push gas away but dust remains this can reflect light giving the cluster a blue-ish color. also called reflection nebula






25. A small and dim but hot star.






26. The act of removing an electron from an atom.






27. 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.






28. A perfect absorber and radiator of electromagnetic radiation.






29. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.






30. As open clusters age - they push gas away but dust remains this can reflect light giving the cluster a blue-ish color. also called reflection nebula






31. An empirical scheme for predictin ghe orbital distances of planets






32. A large - irregularly shaped rocky object orbiting the sun mostly between mars and jupiter. Left-over planetesimals






33. A spinning neutron star






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






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






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






37. The point directly overhead.






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






39. The crust of a meteorite caused by its entry into Earth's atmosphere






40. The light produced when particles from the sun collide with atmospheric molecules






41. The entity responsible for spiral arms in grand-design spiral galaxies






42. A star that is burning hydrogen to helium in a shell surrounding it's core






43. A small spherical dark nebula






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






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






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






47. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.






48. The law that predicts the possible types of spectra.

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49. A particle of light.






50. A push or a pull