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. Light-colored high-pressure bands in Jupiter's atmosphere






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






3. Orbit in Jupiters orbit






4. What is the universe expanding into?






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






6. The apparent magnitude a star would have if it were at a distance of 10 parsecs.






7. Light scattered through the atmosphere that degrades astronomical images






8. Mercury






9. A streak of light in the atmosphere






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






11. 1 mm 1μm






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






13. A logarithmically scaled value for the measured brightness of a star.






14. 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.






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






16. Jupiter






17. The ratio of the actual density of the universe to the critical density. (actual density divided by the critical density






18. Is space infinitely large?

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19. Largest moon in solar system - two differenet types of terrain - darker terrain is older - NOT ACTIVE SURFACE






20. The final end state of an intermediate to high mass star. An entity in which all the electrons have been pushed into the protons.






21. The rate of expansion of the universe.






22. The normal eastward movement of a planet against the background of hte distant stars.






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






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






25. The Big Bang says that the universe has not existed forever. It had a distinct beginning about 14 billion years ago called the 'Big Bang'. Therefore light from any object more than 14 billion light years away has not had time to reach us. The other p

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26. Poitns of gravitational stability in the orbit of a planet






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






28. A spectrum of light with energy at only a few wavelengths.






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






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






31. In a FLAT UNIVERSE(our universe) - the curvature of space-time is ________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






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






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






34. What causes the zones and belts on jupiter and saturn?






35. The surface of the sun






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






37. An evolved star - past the helium flash that is burning helium to carbon in it's cores






38. Titan






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

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40. The time when the universe cooled sufficiently for atoms to exist. radiation dominated= first 300000 years - THEN era of recombination turns into matter dominated for next.






41. A galaxy sending out a stream of material from its nucleus






42. The gap inthe outer portion of Saturn's A ring






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






44. Originially thought to be stars emitting radio radiation but are now concluded to be nuclei of distant galaxies (same as radio galaxies aka emit streams of material)






45. Large nebula consisting of very cold gas and dust






46. Is space infinitely large?

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47. Venus






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






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






50. All wavelengths of light emitted by a blackbody.







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