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. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object






2. Disk dust grains are made of all the elements that are not in gaseous form in space which blocks starlight and causes interstellar extinction






3. A spinning neutron star






4. Centered on the sun.






5. The science of measuring light energy by wavelength.






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






7. Jupiter - Saturn - Uranus - Neptune






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






9. Clouds of low density gas often found glowing faintly on either side of an AGN.






10. A measure of the seasonal shifting of a star's position against farther stars or galaxies. The closer the star - the greater is the angular distance it shifts. We use it to find distances to stars that are up to 1000 pc away.






11. A bright area of higher temperature that often proceeds the formation of sunspots.






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






13. A highly variable galaxy nucleus of which BL Lac is one. Their light is highly energetic and their spectra are featureless. (face on)






14. 10 nm 10^2 nm






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






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






17. The lowest energy of an atom.






18. Mercury






19. Dark - reddish - low-pressure bands in Jupiter's atmosphere






20. Latin for 'cloud'. A word used to describe the collections of gas and dust in the Milky Way and other galaxies






21. 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






22. The movement of the Earth's crustal plates riding on top of the mantle.






23. Disk dust grains are made of all the elements that are not in gaseous form in space which blocks starlight and causes interstellar extinction






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

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






26. Hurricane-like vortex in southern-hemisphere winds to north and south blow in opposite directions which keep it spinning and with no subsurface features like mountians it persists.






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






28. Electromagnetic Radiation






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






30. Cold aggregates of gas - large and contain a huge amount of matter - so cold that molecules stick together to form molecules.






31. A large - irregularly shaped rocky object orbiting the sun mostly between mars and jupiter. Left-over planetesimals






32. IO






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






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






35. 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.






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






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






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






39. The Greek philosopher responsible for making the stellar magnitude scale.






40. A prominence seen against the disk of the sun






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






42. The name for the only seriously considered theory of the universe.






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






44. Largest moon in solar system - two differenet types of terrain - darker terrain is older - NOT ACTIVE SURFACE






45. An evolved star - past the helium flash that is burning helium to carbon in it's cores






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






47. A representation of the changes in color and brightness of an evolving protostar.






48. When the Moon entirely blocks the Sun.






49. All possible types of energy that can be emitted and absorbed by atoms.






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