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. Moon in less than the angular diameter of the Sun.






3. 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.






4. A long-lived high-pressure bulge in Jupiter's southern hemisphere






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






6. The projection of the Earth's equator onto the celestial sphere.






7. The distance light travels in one year (=9.46x10^12km).






8. An object that may remain after a star explodes






9. A force exerted by reflecting sunlight






10. Ganymede and Titan






11. Titan






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






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






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






15. Light scattered through the atmosphere that degrades astronomical images






16. The relation that tells how light dims with distance.






17. When the Sun is farthest south of the celestial equator (About December 22)






18. A younger cluster of stars - found in the galaxy disk






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






20. Jupiter






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






22. The name for the only seriously considered theory of the universe.






23. Long - meandering cliff formed when a planet surface cools and shrinks






24. Form honeycomb like patterns surrounding empty or nearly empty voids.






25. Saturn






26. Why does the earth have few craters while the moon has many?






27. A star that erratically and explosively brightens and dims






28. Venus






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






30. The fate of the universe if it is closed. The universe expanding as much as possible and then retracting






31. 10 cm -> 1 mm






32. When the Sun moves from south to north across the celestial equator (about March 21)






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






34. Relativity predicts that nothing can travel faster than the speed of light in a vacuum - How can it move slower?






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






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






37. A telescope that uses mirrors to focus light






38. An important quality of telescopes that increases as the square of the primary mirror or objective lens






39. A particle of light.






40. The mirror that gathers the light in a reflector






41. What causes the zones and belts on jupiter and saturn?






42. When one side of a body always faces the planet it revolves around






43. A planet that is farther from the sun than the Earth is






44. A spectrum of light with energy at only a few wavelengths.






45. A planet orbiting about a distant star






46. The first rock-sized bodies that formed in the solar nebula from dust grains






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






48. 10 nm 10^2 nm






49. The point where an inferior planet is as far away from the sun as it can be (as seen from the Earth)






50. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the