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






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






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






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






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






6. Form honeycomb like patterns surrounding empty or nearly empty voids.






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






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






9. A perfect absorber and radiator of electromagnetic radiation.






10. Medium bulge - moderately would arms - arms have H2 regions in them and look sort of lumpy






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






12. A star fusing hydrogen to helium in it's core






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






14. A small chunk of rock in space






15. A force exerted by reflecting sunlight






16. A quantity measuring the stability of the Earth's atmosphere






17. The lens that gathers the light in a refractor






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






19. 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






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






21. The state of having a balance between inward and outard pressures in a gas--the inward force from gravity is balanced by the outward force from heat.






22. Any change in the speed or direction of an object's motion






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






24. A particle of light.






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






26. 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)






27. The process responsible for creating the arms of flocculent spiral galaxies






28. A star that erratically and explosively brightens and dims






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






30. Sc galaxies where star formation and destruction is so rapid that supernova explosions are mainly responsible for compressing gas to create new stars.






31. A fusion process in which protons build together to form helium






32. Neptune or uranus






33. We can infer the absolute magnitude of pulsating variable stars by measuring their pulsation periods. The longer the pulsations - the greater their luminosities. We then again measure their apparent magnitudes - compare it with their absolute magnitu






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






35. The process similar to conduction by which energy moves from the solar core to the convective layer






36. IO






37. A spinning neutron star






38. The lens that gathers the light in a refractor






39. Where is the center of the expansion






40. A small chunk of rock in space






41. 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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42. A toroidal or donut-shaped collection of material attracted to a central body like a star or black hole. Dust around an object






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






44. Sudden blasts of gamma radiation from a very distant galaxy caused possibly by a supernova explosion.






45. Formed rapidly - collapsed slower into disk shape - star birth rate is low but lasts longer and ongoing - contain higher mass blue stars.






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






47. The study of the universe as a whole.






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






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






50. A technique using computer-controlled mirrors to sharpen images distorted by the atmosphere