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. Venus (retrograde)






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






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






4. Mercury






5. Centered on the Earth






6. Moon in less than the angular diameter of the Sun.






7. The imaginary sphere centered on the Earth that hols the stars.






8. A word meaning 'the same everywhere throughout.'






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






10. Is space infinitely large?

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11. Possible Fates of the Universe






12. The relation that tells how light dims with distance.






13. A location on an H-are Diagram where evolving stars pulsate






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






15. The imaginary sphere centered on the Earth that hols the stars.






16. A large and bright but cool star.






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






18. In a CLOSED UNIVERSE - the curvature of space-time is _________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






19. 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)






20. 100 nm 10 nm






21. A word meaning 'the same everywhere throughout.'






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






23. A streak of light in the atmosphere






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






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






26. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.






27. The organization of clusters of galaxies into sheets and strings






28. 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






29. The 'edge' of the universe. Light beyond this has not reached us yet.






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






31. Dark areas on the sun that are cooler than the surrounding photosphere






32. The lens in a telescope used to determine the magnification






33. Large bulge - tightly wound spiral arms - relatively few h2 regions and are smooth






34. The location in the Milky Way where stars orbit like a solid wheel






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






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






37. The study of the universe as a whole.






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






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






40. The source of the force that is accelerating the expansion rate of the universe.






41. Why do Galaxies move very rapidly in the interiors of the dense clusters?






42. 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)






43. All possible types of energy that can be emitted and absorbed by atoms.






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






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






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






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






48. 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)






49. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas






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