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






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






3. 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)






4. The family of radiant energy that includes light as a subset






5. The assumption that the universe is isotropic (same in all directions) and homogeneous (Same everywhere throughout)






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






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






8. Is space infinitely large?

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






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






11. Mercury - Venus - Earth - Mars






12. The mirror that determines the focus configuration of a reflector






13. Jupiter






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






15. Young clusters in disk are irregularly shaped since they have no time to relax into the rounder relaxed shape of globular clusters-will constantly be torn apart and assimilated.






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






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






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






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






20. How did Earth come to have an oxygen rich atmosphere?






21. The line on an H-are diagram going from upper left to lower right where normal stars of different masses reside.






22. A large and bright but cool star.






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






24. An important quality of telescopes that increases as the square of the primary mirror or objective lens






25. A method of finding a star's distance from its absolute magnitude and spectral type or color.






26. Ganymede






27. A star that blows itself apart






28. The process of acquiring material






29. A star that is burning hydrogen to helium in a shell surrounding it's core






30. A term referring to Earth-like planets






31. 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.






32. Collections of young - hot stars






33. 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)






34. Orbit in Jupiters orbit






35. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter






36. 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






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






38. Small compact stars called white dwarfs can have material deposited on their surfaces. In time material heats up and explodes in surface nuclear reaction- star brightens - settles - repeats.






39. 100 nm 10 nm






40. Material that shoots rapidly out into space. Flares cause Auroras






41. The rate of expansion of the universe.






42. The state of having a balance between inflowing and outflowing heat-- the temp at every radial point is different but constant






43. Europa






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






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






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






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






48. The organized effort to find life elsewhere in the universe. (Search for Extra-Terrestrial Intelligence)






49. All wavelengths of light emitted by a blackbody.






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






Can you answer 50 questions in 15 minutes?



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