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. Electromagnetic Radiation






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






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. An element of a highly efficient - two-dimensional electronic light detector






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






6. A subatomic particle with a negative charge. It creates light.






7. The surface of the sun






8. The apparent backward motion of a planet against the background of stars.






9. The area behind a lens where images are resolved






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






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






12. Arcs of increased mass concentration that slow stars and gas down as they orbit through which cause the formation of stars.






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






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






15. 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)






16. A term referring to the orbital character of stars near the Sun






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






18. Possible Fates of the Universe






19. The lowest energy of an atom.






20. Sulfurous volcanoes - pools of liquid sulfur - surface resembles cheese pizza ACTIVE SURFACE






21. The entity from which the whole universe is postulated to have come from.






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






23. VENUS






24. Neptune or uranus






25. Matter that reveals itself only through its gravitational attraction.






26. Why does the earth have few craters while the moon has many?






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






28. A spinning neutron star






29. Elliptical orbits that come inside orbit of the Earth.






30. A word used in astronomy to describe all elements besides hydrogen and helium






31. The point where a superior planet is as far away from the sun as it can be (as seen from the Earth)






32. Thick rigid crust - no longer has plate tectonics but still has convective hot spots that create earth-like volcanoes except that last for billions of years because of lack of tectonics.






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






34. Hydrogen and helium (mainly)






35. The point where a superior planet is as far away from the sun as it can be (as seen from the Earth)






36. What is the universe expanding into?






37. When the Sun is farthest south of the celestial equator (About December 22)






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






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






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






41. The rotation period of the Earth measured relative to the stars.






42. Dying large-mass stars lose their outer layers in a violent explosion creating large - chaotic remnants. these brighten like nova but are so much brighter and only occur ONCE PER STAR






43. The surface of the sun






44. The law stating that hotter blackbodies look bluer than cooler blackbodies.

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45. The number of protons in an atom.






46. Mercury






47. The mass of an object divided by its volume






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






49. Venus






50. 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