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. Material that shoots rapidly out into space. Flares cause Auroras






2. An entity that is likely in the nucleus of most - if not all - galaxies.






3. Dying small mass stars lose their outer layers in a relatively gentle way - creating a round or bipolar nebula about the star (round like planets)






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






5. The point in its orbit where a planet is nearest the sun






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






7. Dark areas on the sun that are cooler than the surrounding photosphere






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






9. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:






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






11. Matter so dense that even light cannot escape its gravity






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






13. In what chemical form are jupiters nitrogen - carbon and oxygen?






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






15. 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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


16. 10^2 nm 10^7 nm






17. A very dense - highly populated cluster of galaxies






18. An important quality of telescopes that increases as the square of the primary mirror or objective lens






19. Distribution of dust (tells us disk is thin) - find distances to O&B stars and H2 regions (arms are sights of star formation and OB stars live and die at location of birth) -Milky way has four arms. Sun is in spur apart from arms.






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






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






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






23. Medium bulge - moderately would arms - arms have H2 regions in them and look sort of lumpy






24. Large nebula consisting of very cold gas and dust






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






26. Mercury






27. A star that erratically and explosively brightens and dims






28. A large and bright but cool star.






29. A change in the appearance of the sun at the edge of the solar disk






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






31. The imaginary sphere centered on the Earth that hols the stars.






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






33. Matter that reveals itself only through its gravitational attraction






34. A telescope that uses mirrors to focus light






35. 1. We see rapid movements or high energy radiation coming at some level from the nuclei of nearly every galaxy we have looked at. 2. We suspect that the creation of these supermassive black holes is part of the galaxy formation process.






36. The faint glow of light left over from the Big Bang. cosmic microwave background are the photons that remain after the big bang that have not turned into matter.






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

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183


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






39. The light produced when particles from the sun collide with atmospheric molecules






40. A star without enough mass to begin hydrogen fusion






41. Is there water on the moon?






42. A measure of the force of gravity on an object






43. 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






44. The dark - relativley smooth areas on the moon; Latin for sea






45. The first rock-sized bodies that formed in the solar nebula from dust grains






46. When the Sun moves from south to north across the celestial equator (about March 21)






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






48. The amount an image is enlarged by a telescope






49. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:






50. The shadow behind the Earth or Moon where the Sun is partially obscured.