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. Centered on the Earth






2. Small bulges - loosely wound - massive arms - arms have many H2 regions and look very lumpy






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






4. A star without enough mass to begin hydrogen fusion






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






6. The location in the Milky Way where stars orbit like a solid wheel






7. When a planet lines up with the sun inthe sky






8. Population 1- similar to the sun and 2% of elements are metal - Population 2- formed before gas was metal- only a fraction of mass is metal.






9. As open clusters age - they push gas away but dust remains this can reflect light giving the cluster a blue-ish color. also called reflection nebula






10. Why do Galaxies move very rapidly in the interiors of the dense clusters?






11. In a FLAT UNIVERSE(our universe) - the curvature of space-time is ________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






12. A push or a pull






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






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






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






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






17. IO






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






19. Saying that the sky should not get dark at night because all lines of sight end on a star meaning that the night sky should be ablaze BUT the big bang - because the universe had a beginning - says that the sky gets dark because out in space - galaxie

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


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






21. Where is the center of the expansion






22. A galaxy sending out a stream of material from its nucleus






23. A subatomic particle with a negative charge. It creates light.






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






25. A particle of light.






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






27. The location in the Milky Way where stars orbit like a solid wheel






28. 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)






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






30. What are the three possible geometries of the universe?






31. The act of removing an electron from an atom.






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






33. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter






34. 10 nm 10^2 nm






35. Old - pock marked - icy surface - interior is not differentiated - geologically dead - NOT ACTIVE SURFACE






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






37. Sa - Sb galaxies where two magnificent arms wind their way from nucleus out in a symmetrical manner.






38. Mercury - Venus - Earth - Mars






39. 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)






40. The temp at which a substance in the vacuum of space solidifies






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






42. 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






43. The elementary building blocks from which protons and neutrons are formed.






44. The point directly overhead.






45. The larger bodies that formed early in teh solar nebula that were chemically differentiated






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






47. Formed rapidly - collapsed slower into disk shape - star birth rate is low but lasts longer and ongoing - contain higher mass blue stars.






48. Small moons that maintain the shape of rings around Saturn and Uranus






49. A perfect absorber and radiator of electromagnetic radiation.






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







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests