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






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






3. The philosophical stand that says a simpler explanation is more likely to be correct than a complicated one.

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






5. Dying small mass stars lose their outer layers in a relatively gentle way - creating a round or bipolar nebula about the star (round like planets)






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






7. The layer of the sun just above the photosphere






8. A high-pressure bulge in Neptune's southern hemisphere






9. The mass of an object divided by its volume






10. An object that may remain after a star explodes






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






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






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






14. When one side of a body always faces the planet it revolves around






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






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






17. Venus






18. Approximate speed of light in a vacuum






19. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.






20. A particle of light.






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






22. We can infer the absolute magnitude of pulsating variable stars by measuring their pulsation periods. The longer the pulsations - the greater their luminosities. We then again measure their apparent magnitudes - compare it with their absolute magnitu






23. Population 1 with higher metals and contain many young stars in star clusters. Distribution of stars is everywhere in disk (arms only have 5% more stars)






24. The larger bodies that formed early in teh solar nebula that were chemically differentiated






25. Collections of young - hot stars






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






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






28. The material from which the solar system formed






29. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object






30. 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.






31. After stars form they pump light energy into surrounding gas causing it to heat up and glow (H2=ionized hydrogen - H1= neutral hydrogen in molcular couds)






32. Formed from slow rotating clouds - collapsed quicker - initial star formation rate is high but died out - older - little rotation - look redder






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






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






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






36. A small chunk of rock in space






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






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






39. A cool collection of gas and dust silhouetted against a brighter background of stars and/or gas






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






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






42. In what chemical form are jupiters nitrogen - carbon and oxygen?






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






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






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






46. A particle of light.






47. An object that may remain after a star explodes






48. Large nebula consisting of very cold gas and dust






49. What is the universe expanding into?






50. Finding a star's absolute magnitude from it's placement on an HR diagram. After finding the absolute magnitude - we measure the apparent magnitude - for a distance modulus and use this to find the distance. This method is good for finding distances t