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 powdered stone fragments that make up the lunar 'soil'






2. Mercury and venus






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






4. A streak of light in the atmosphere






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






6. Earth






7. The surface of the sun






8. Saturn






9. The shadow area behind the Earth or Moon where the Sun is completely obscured.






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






11. A force exerted by reflecting sunlight






12. Extends to a distance of 50000AU. Same objects as in the Kuiper belt-when they fall in toward the sun they become comets. Debris from comets hitting the Earths atmosphere cause meteor showers.






13. The study of the universe as a whole.






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






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






16. A bright area of higher temperature that often proceeds the formation of sunspots.






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






18. The entity responsible for spiral arms in grand-design spiral galaxies






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






20. A telescope that uses mirrors to focus light






21. 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.






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






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






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






25. The wavelengths where a specific element can absorb or emit light.






26. Sulfurous volcanoes - pools of liquid sulfur - surface resembles cheese pizza ACTIVE SURFACE






27. A telescope that uses lenses to focus light






28. Finding a star's absolute magnitude from it's placement on an HR diagram. After finding the absolute magnitude - we measure the apparent magnitude - for a distance modulus and use this to find the distance. This method is good for finding distances t






29. 10 cm -> 1 mm






30. The rock that makes up the lunar highlands






31. 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.






32. The point where a superior planet is as far away from the sun as it can be (as seen from the Earth)






33. The science of measuring light energy by wavelength.






34. 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.






35. Europa






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






37. Infinitely long -> 10 cm






38. The process of acquiring material






39. An empirical scheme for predictin ghe orbital distances of planets






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






41. The material from which the solar system formed






42. Is there water on the moon?






43. The science of measuring light energy by wavelength.






44. When material is heated and moves taking the heat energy with it






45. Mercury






46. The point directly overhead.






47. The light produced when particles from the sun collide with atmospheric molecules






48. The high- temperatature outer layer of the sun






49. The part of the Milky way that has on-going star formation






50. The trapping of heat by carbon dioxide or other gases in the Earth's atmosphere.