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. Elliptical orbits that come inside orbit of the Earth.






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






3. A spread of light with an uninterrupted wavelength distribution of energy.






4. Norhern lowlands- darker in color and have far fewer craters as if an ancient sea or ice field covered them. southern highlands- much higher in density of craters.






5. The science of measuring light energy by wavelength.






6. A term referring to Earth-like planets






7. Earth






8. Radiation emitted when charged particles spiral rapidly in a magnetic field. come off of jets from black holes.






9. A very dense - highly populated cluster of galaxies






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






11. A small and dim but hot star.






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






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






14. Mercury






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






16. Possible Fates of the Universe






17. 1μm 100 nm






18. An object that may remain after a star explodes






19. A phenomenon seen when the Earth passes through the orbit of a burned out comet






20. Radiation given off by electrons accelerating in a magnetic field






21. The mix of pure photon energy that emerged at the start of the universe.






22. The high- temperatature outer layer of the sun






23. The material from which the solar system formed






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






25. The seasonal shifting of a nearby star's position relative to more distant objects.






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






27. A rock or iron specimen that has fallen from space






28. The seasonal shifting of a nearby star's position relative to more distant objects.






29. The apparent magnitude a star would have if it were at a distance of 10 parsecs.






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






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






32. The universe is isotropic - homogeneous - and without beginning or end in time and space. If the universe is truly homogeneous then every line of sight will eventually end on a galaxy. If it has existed forever then there has been enough time for lig

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33. A perfect absorber and radiator of electromagnetic radiation.






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






35. Jupiter






36. A measure of the ability of a telescope to see fine detail






37. Radiation given off by electrons accelerating in a magnetic field






38. A small spherical dark nebula






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






40. A small chunk of rock in space






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






42. When massive objects bend space and time enough to create multiple images of an object located behind them






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






44. The high- temperatature outer layer of the sun






45. That which is responsible for Jupiter's magnetic field






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






47. Is space infinitely large?

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48. A logarithmically scaled value for the measured brightness of a star.






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. The material from which the solar system formed