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






2. The rate of expansion of the universe.






3. A small spherical dark nebula






4. Is there water on the moon?






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






6. Venus (retrograde)






7. What Ole Roemer used to measure the speed of light in a vacuum






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






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






10. The source of the force that is accelerating the expansion rate of the universe.






11. Ganymede






12. The mix of pure photon energy that emerged at the start of the universe.






13. Atmosphere blocks high energy wavelengths - atmosphere blurs optical radiation - atmosphere absorbs some radiation at all wavelengths even when it gets through.






14. Collections of young - hot stars






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






16. A small and dim but hot star.






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






18. A force exerted by reflecting sunlight






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






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






21. An element of a highly efficient - two-dimensional electronic light detector






22. Norhern lowlands- darker in color and have far fewer craters as if an ancient sea or ice field covered them. southern highlands- much higher in density of craters.






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






24. A word meaning 'the same everywhere throughout.'






25. What do we think the actual fate of the universe will be and why do we think this?






26. The high- temperatature outer layer of the sun






27. 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.






28. Sudden blasts of gamma radiation from a very distant galaxy caused possibly by a supernova explosion.






29. The oldest part of the Milky Way






30. Orbit in Jupiters orbit






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






32. A star fusing hydrogen to helium in it's core






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






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






35. Venus






36. The movement of the Earth's crustal plates riding on top of the mantle.






37. The crust of a meteorite caused by its entry into Earth's atmosphere






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






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






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






41. Mercury






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






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






44. 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






45. The instant of time after the Big Bang when space and time obtained their characteristics. (t=10^-43 sec when gravity freezes out-instant when gravity started existing as a separate force)






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






47. The movement of the Earth's crustal plates riding on top of the mantle.






48. 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.






49. The era when the ratio of matter to energy greatly favored matter. (verses radiation dominated universe where it was opaque. Matter is now dominated by gravity not photons)






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