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. An object that may remain after a star explodes






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

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3. Heavier elements such as iron - silicon - magnesium - sulfer - nickel






4. Infinitely long -> 10 cm






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






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






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






8. The process that powers the sun and hydrogen bombs






9. Is there water on the moon?






10. 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)






11. The gap etween saturn's A and B rings






12. Either Io -Europa - Ganymede - or Callisto






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






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






15. 30AU to 50Au from sun - consists of ancietn premordial objects made of frozen ice and dust-35000 objects or more that are larger than 100 km in diameter and many more smaller than this






16. 1-orbit aroudn the sun 2- are in hydrostatic equilibrium and 'mostly round' 3- have not cleared debris around its orbit 4- are not satellites






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






18. The lens that gathers the light in a refractor






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






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






21. 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.






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






23. The lens that gathers the light in a refractor






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






25. A small chunk of rock in space






26. A point in the sky where meteors appear to come from during a shower






27. Jupiter






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






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






30. Approximate speed of light in a vacuum






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






32. The linear correlation between the rate of the expansion of the universe and distance. Says that as galaxies get farther away in space - the speed with which they recede from us increases. So we can measure the amount of recessional velocity and use






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






34. A repeated - periodic push or pull capable of summing into a larger push or pull






35. A bridge of material held in position above the solar surface. They can remain for hours even days






36. The rotation of a star or planet at different speeds at its equator and poles






37. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.






38. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.






39. The crust of a meteorite caused by its entry into Earth's atmosphere






40. When one side of a body always faces the planet it revolves around






41. Stars orvits do not define the spiral patterns - instead they are density waves that move at slower speeds (arms are defined by young O and B stars and gas clouds)






42. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.






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






44. The rock that makes up the lunar maria






45. The nuclei of very distant galaxies. Likely a manifestation of supermassive black holes






46. A very distant - star-like object with huge - broad emission lines. Probably the nucleus of a distant active galaxy.






47. Jupiter






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






49. 1μm 100 nm






50. Infinitely long -> 10 cm







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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