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. Comglomerates of ice and rock that orbit the sun in highly elliptical paths






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






3. Possible Fates of the Universe






4. Consists of old red stars in slow orbits that plunge through disk and bulge. about 1% are old - round globular clusters.






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






6. The law that describes the blackbody curve - and let to quantum mechanics.

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






8. The rock that makes up the lunar highlands






9. A word used in astronomy to describe all elements besides hydrogen and helium






10. A word used in astronomy to describe all elements besides hydrogen and helium






11. A prominence seen against the disk of the sun






12. A prominence seen against the disk of the sun






13. Possible Fates of the Universe






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






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






16. The amount of density needed to stop the universe from expanding and to begin the big crunch represented by Pc






17. Hydrogen and helium (mainly)






18. Mercury






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






20. The displacement of spectral lines to redder colors caused by the expansion of the universe.






21. The point where an inferior planet is as far away from the sun as it can be (as seen from the Earth)






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






23. Centered on the Earth






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






25. The area behind a lens where images are resolved






26. Old - pock marked - icy surface - interior is not differentiated - geologically dead - NOT ACTIVE SURFACE






27. Europa






28. 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.






29. Is there water on the moon?






30. The part of the Milky way that has on-going star formation






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






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






33. The amount an image is enlarged by a telescope






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






35. A collection of galaxies like the one the Milky Way belongs to






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






37. 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






38. 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.






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






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






41. A star that erratically and explosively brightens and dims






42. Mercury - Venus - Earth - Mars






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






44. Infinitely long -> 10 cm






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






46. Is space infinitely large?

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47. A force exerted by reflecting sunlight






48. A term referring to Earth-like planets






49. Consists of old red stars in slow orbits that plunge through disk and bulge. about 1% are old - round globular clusters.






50. Radiation emitted when charged particles spiral rapidly in a magnetic field. come off of jets from black holes.