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. Hydrogen and helium (mainly)






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






3. 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)






4. A continuous spectrum of light missing energy at a few wave lengths.






5. The material from which the solar system formed






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






7. Europa






8. A star that blows itself apart






9. 10 cm -> 1 mm






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






11. Large bulge - tightly wound spiral arms - relatively few h2 regions and are smooth






12. Ancient stream channels - flood planes - and sedimentary-type rock. Frozen water is found in the polar ice caps and in the soil.






13. Where is the center of the expansion






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






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






16. The place in the sky that the Earth's axis points toward (can be either north or south)






17. A two-filter measure of the color - and hence temperature - of a star.






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






19. The apparent path of the Sun through the stars on the celestial sphere.






20. Mercury and venus






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






22. The state of having a balance between inward and outard pressures in a gas--the inward force from gravity is balanced by the outward force from heat.






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






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






25. A galaxy emitting large amounts of energy at long wavelengths.






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






27. The slow wobble of the Earth on its rotation axis.






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






29. The gap inthe outer portion of Saturn's A ring






30. The process similar to conduction by which energy moves from the solar core to the convective layer






31. 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.






32. The time when the universe cooled sufficiently for atoms to exist. radiation dominated= first 300000 years - THEN era of recombination turns into matter dominated for next.






33. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.






34. The Big Bang says that the universe has not existed forever. It had a distinct beginning about 14 billion years ago called the 'Big Bang'. Therefore light from any object more than 14 billion light years away has not had time to reach us. The other p

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


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






36. A particle of light.






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






38. The mass of an object divided by its volume






39. 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






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






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






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






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






44. 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






45. Small compact stars called white dwarfs can have material deposited on their surfaces. In time material heats up and explodes in surface nuclear reaction- star brightens - settles - repeats.






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






47. Then the Sun moves from north to south across the celestial equator (about September 23)






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






49. The point where an inferior planet is as far away from the sun as it can be (as seen from the Earth)






50. The process of acquiring material