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. First accurately measured the speed of light in a vacuum






2. A push or a pull






3. The fusion process that turns three helium nuclei into a carbon nucleus






4. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.






5. 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






6. What do we think the actual fate of the universe will be and why do we think this?






7. Venus






8. The number of protons in an atom.






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






10. The distance light travels in one year (=9.46x10^12km).






11. Mercury






12. 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)






13. Orbit in Jupiters orbit






14. A particle of light.






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






16. Small moons that maintain the shape of rings around Saturn and Uranus






17. Highlands: rocks are made of lighter anorthosite (similar to old earth rocks) Maria: rocks made of heavy mare basalt (volcanic rock) everywhere else is loose regolith created by meteoric impact.






18. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.






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






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






21. The law that describes the blackbody curve - and let to quantum mechanics.

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22. 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.






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






24. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.






25. The high- temperatature outer layer of the sun






26. The amount of density needed to stop the universe from expanding and to begin the big crunch represented by Pc






27. Mercury






28. Small bulges - loosely wound - massive arms - arms have many H2 regions and look very lumpy






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






30. The layer of the sun just above the photosphere






31. Long - meandering cliff formed when a planet surface cools and shrinks






32. Titan






33. A perfect absorber and radiator of electromagnetic radiation.






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






35. Is there water on the moon?






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






37. 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






38. The process of acquiring material






39. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the






40. A large and bright but cool star.






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






42. Places in the asteroid belt - caused by resonance with Jupiter - where there are no asteroids






43. The measure of a variable star's apparent magnitude as it brightens and dims with time






44. The sinking of denser elements to the center of a young molten planet






45. Sc galaxies






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






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






48. A telescope that uses mirrors to focus light






49. Originially thought to be stars emitting radio radiation but are now concluded to be nuclei of distant galaxies (same as radio galaxies aka emit streams of material)






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