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. Jupiter






2. The oldest terrain on the moon






3. A continuous spectrum of light missing energy at a few wave lengths.






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






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






6. Ganymede and Titan






7. All wavelengths of light emitted by a blackbody.






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






9. Plate tectonics due to thickness of crust and maintain their general form when they collide-where most volcanoes are.






10. A small chunk of rock in space






11. Venus (retrograde)






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






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






14. Comglomerates of ice and rock that orbit the sun in highly elliptical paths






15. Hurricane-like vortex in southern-hemisphere winds to north and south blow in opposite directions which keep it spinning and with no subsurface features like mountians it persists.






16. In an OPEN UNIVERSE - the curvature of space-time is ____ - Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is____.






17. A phenomenon seen when the Earth passes through the orbit of a burned out comet






18. A huge sphere of tenuous gas surrounding the nucleus of a comet






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






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






21. The science of measuring light energy by wavelength.






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






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






24. A telescope that uses mirrors to focus light






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






26. All wavelengths of light emitted by a blackbody.






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






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






29. A phenomenon seen when the Earth passes through the orbit of a burned out comet






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






31. 1-orbit aroudn the sun 2- are in hydrostatic equilibrium and 'mostly round' 3- have not cleared debris around its orbit 4- are not satellites






32. Is there water on the moon?






33. A plot of star absolute magnitude verses spectral type.






34. A prominence seen against the disk of the sun






35. 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.






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






37. A large and bright but cool star.






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






39. Population 1 with higher metals and contain many young stars in star clusters. Distribution of stars is everywhere in disk (arms only have 5% more stars)






40. Formed from slow rotating clouds - collapsed quicker - initial star formation rate is high but died out - older - little rotation - look redder






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






42. An efficient - two-dimensional electronic light detector. Common in digital cameras - they revolutionized astronomical imaging






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






44. A star that is in the process of forming. It glows from gravitational contraction






45. The law stating that hotter blackbodies look bluer than cooler blackbodies.

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46. A streak of light in the atmosphere






47. The powdered stone fragments that make up the lunar 'soil'






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






49. The average distance between the Earth and the Sun (=1.5 x10^8km)






50. The lens in a telescope used to determine the magnification