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. Is there water on the moon?






2. Large nebula consisting of very cold gas and dust






3. The law that syas light energy from a blackbody increases as (temperature^4)






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






5. A measure of the force of gravity on an object






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






7. IO






8. The dimming of starlight by intervening dust






9. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:






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






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






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






13. A star that has become a red giant for the second and final time. It is burning helium to carbon in a shell surrounding the core






14. Centered on the sun.






15. 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.






16. A long-lived high-pressure bulge in Jupiter's southern hemisphere






17. That which is responsible for Jupiter's magnetic field






18. Stars fromt he Halo that have drifted into the disk. as earth zooms past them in a faster orbit they appear to be going backward very fast






19. 1. We see rapid movements or high energy radiation coming at some level from the nuclei of nearly every galaxy we have looked at. 2. We suspect that the creation of these supermassive black holes is part of the galaxy formation process.






20. A term referring to Jupiter-like planets






21. Jupiter - Saturn - Uranus - Neptune






22. The amount an image is enlarged by a telescope






23. The location around an atom where an electron resides.






24. Star speed at outer edge of galaxy should begin to diminish - but they dont so we guess that this means there is increasing force (aka dark matter)






25. That which is responsible for Jupiter's magnetic field






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






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






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






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






30. The law that syas light energy from a blackbody increases as (temperature^4)






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






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






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






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






35. 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.






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






37. Hurricane-like vortex in southern-hemisphere winds to north and south blow in opposite directions which keep it spinning and with no subsurface features like mountians it persists.






38. A word meaning 'the same in all directions.'






39. The cosmological principle is the assumption that the universe is isotropic and homogeneous.The Big Bang assumes it to be a correct principle so that what we observe is exactly like What is too far away to be observed.






40. Earth






41. The entity responsible for spiral arms in grand-design spiral galaxies






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






43. Hydrogen and helium (mainly)






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






45. Saying that the sky should not get dark at night because all lines of sight end on a star meaning that the night sky should be ablaze BUT the big bang - because the universe had a beginning - says that the sky gets dark because out in space - galaxie

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46. When the Moon entirely blocks the Sun.






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






48. A massive variable star used to find distances to the galaxies or clusters that contain them.






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






50. The number of protons in an atom.







Sorry!:) No result found.

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