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. A point in the sky where meteors appear to come from during a shower






2. We can infer the absolute magnitude of pulsating variable stars by measuring their pulsation periods. The longer the pulsations - the greater their luminosities. We then again measure their apparent magnitudes - compare it with their absolute magnitu






3. A small and dim but hot star.






4. The organization of clusters of galaxies into sheets and strings






5. All possible types of energy that can be emitted and absorbed by atoms.






6. A term referring to Earth-like planets






7. What is the universe expanding into?






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






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






10. 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 ________.






11. An object that may remain after a star explodes






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






13. Venus (retrograde)






14. When particles are compressed to an unnatural state where their pressure is not related to their temperature






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






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






17. 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.






18. The 11 or 22 period on the sun durin which sunspots increase - decrease - change polarity - increase and decrease again.






19. A change in the wavelength of light caused by a motion between the observer and light (or wave) source (blue shift if getting closer - red shift if moving away)






20. The layer of the sun just above the photosphere






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






22. A spinning neutron star






23. A push or a pull






24. An energetic event taking place in the early universe






25. The oldest part of the Milky Way






26. A cool collection of gas and dust silhouetted against a brighter background of stars and/or gas






27. An object that may remain after a star explodes






28. The linear correlation between the rate of the expansion of the universe and distance. Says that as galaxies get farther away in space - the speed with which they recede from us increases. So we can measure the amount of recessional velocity and use






29. The mirror that gathers the light in a reflector






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






31. Light-flaky crust - convective currents cause it to wrinkle and bunch (1/5 of surface). uniform cratering suggests lack of weathering and tectonics. volcanoes are flat due to atmospheric pressure.






32. The state of having a balance between inflowing and outflowing heat-- the temp at every radial point is different but constant






33. The process responsible for creating the arms of flocculent spiral galaxies






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






35. Light-colored high-pressure bands in Jupiter's atmosphere






36. The sinking of denser elements to the center of a young molten planet






37. Elliptical orbits that come inside orbit of the Earth.






38. IO






39. VENUS






40. A method of finding a star's distance from its absolute magnitude and spectral type or color.






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






42. A small round distribution of gas surrounding a dying star






43. Possible Fates of the Universe






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






45. Heavier elements such as iron - silicon - magnesium - sulfer - nickel






46. Jupiter






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






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






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






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