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






2. A star that blows itself apart






3. The seasonal shifting of a nearby star's position relative to more distant objects.






4. A telescope that uses mirrors to focus light






5. Theory virtually demands that the geometry of the universe be ______. Results of measuring lumps in the cosmic background radiation indicate that the universe geometry is ________.






6. The wavelengths where a specific element can absorb or emit light.






7. The nuclei of very distant galaxies. Likely a manifestation of supermassive black holes






8. The material from which the solar system formed






9. Wave- only waves cause an interference pattern when passing through a double slit - particle- only particles deposit energy at specific locations (the way an image builds up on digital camera)






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






11. The force of attraction between any two objects having mass






12. IO






13. The temp at which a substance in the vacuum of space solidifies






14. Venus






15. The telescope configuration that has the focus placed at the back of the primary mirror






16. 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






17. When the Sun is farthest north of the celestial equator (about June 22)






18. A volume of space where few - if any - galaxies are located






19. Centered on the Earth






20. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting






21. Jupiter - Saturn - Uranus - Neptune






22. The surface of the sun






23. The shadow area behind the Earth or Moon where the Sun is completely obscured.






24. The opaque universe that existed for 300000 years after the Big Bang. (photons outnumbered nuclei by 1 billion to one - so less light)






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






26. A highly variable galaxy nucleus of which BL Lac is one. Their light is highly energetic and their spectra are featureless. (face on)






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






28. A planet orbiting about a distant star






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






30. A faint - remarkably uniform distribution of radiation in space






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






32. The point in its orbit where a planet is nearest the sun






33. The location in an H-are diagram of a star cluster - where stars have just left the main sequence. Used to estimate the cluster age.






34. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.






35. A point in the sky where meteors appear to come from during a shower






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






37. The era when the ratio of matter to energy greatly favored matter. (verses radiation dominated universe where it was opaque. Matter is now dominated by gravity not photons)






38. Radiation (possibly left over from the big bang) that fills the universe. Perfect black body spectrum and tells us a bit aout how galaxies are formed.






39. The location of a supermassive black hole






40. A push or a pull






41. Is there water on the moon?






42. First accurately measured the speed of light in a vacuum






43. Latin for 'cloud'. A word used to describe the collections of gas and dust in the Milky Way and other galaxies






44. An efficient - two-dimensional electronic light detector. Common in digital cameras - they revolutionized astronomical imaging






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






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






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






48. Any class of objects with a uniform luminosity used to determine distance.






49. How is the Hubble Law consistent with an expanding universe?






50. 100 nm 10 nm