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. The normal eastward movement of a planet against the background of hte distant stars.






2. A volume of space where few - if any - galaxies are located






3. A star without enough mass to begin hydrogen fusion






4. A small and dim but hot star.






5. 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.






6. Theory virtually demands that the geometry of the universe be ______. Results of measuring lumps in the cosmic background radiation indicate that the universe geometry is ________.






7. A crystalline patter found in iron meteorites






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






9. The final end state of an intermediate to high mass star. An entity in which all the electrons have been pushed into the protons.






10. The mirror that gathers the light in a reflector






11. A bridge of material held in position above the solar surface. They can remain for hours even days






12. Centered on the sun.






13. Sc galaxies where star formation and destruction is so rapid that supernova explosions are mainly responsible for compressing gas to create new stars.






14. The telescope configuration that has the focus placed at the back of the primary mirror






15. Infinitely long -> 10 cm






16. The process that powers the sun and hydrogen bombs






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






18. A location on an H-are Diagram where evolving stars pulsate






19. The most mass a white dwarf can have before collapsing to a neutron star






20. A volume of space where few - if any - galaxies are located






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






22. The layer of the sun just above the photosphere






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






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






25. 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.






26. The telescope configuration that has the focus placed at the back of the primary mirror






27. After stars form they pump light energy into surrounding gas causing it to heat up and glow (H2=ionized hydrogen - H1= neutral hydrogen in molcular couds)






28. Venus (retrograde)






29. 10^2 nm 10^7 nm






30. The science of measuring the apparent magnitudes of stars by imaging them through different filters.






31. Galaxies whose nuclei emit jets of materil at high speeds. material comes from supermassive black holes






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






33. The mirror that determines the focus configuration of a reflector






34. Massive compact halo objects (MACHO) - weakly interacting massive particles (WIMPY's)






35. Young clusters in disk are irregularly shaped since they have no time to relax into the rounder relaxed shape of globular clusters-will constantly be torn apart and assimilated.






36. Mercury






37. The lowest energy of an atom.






38. A spinning neutron star






39. The oldest grouping of stars - found in the galaxy halo






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






41. Orbit in Jupiters orbit






42. 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.






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






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






45. A push or a pull






46. The process of acquiring material






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






48. A distance measure determined by the shifting of a star against the background sky every 6 months.






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






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