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. Where is the center of the expansion






2. Radiation given off by electrons accelerating in a magnetic field






3. Material that shoots rapidly out into space. Flares cause Auroras






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






5. Europa






6. Sc galaxies






7. Matter so dense that even light cannot escape its gravity






8. 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






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






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






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






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






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






14. Electromagnetic Radiation






15. A very distant - star-like object with huge - broad emission lines. Probably the nucleus of a distant active galaxy.






16. Hydrogen and helium (mainly)






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






18. Is there water on the moon?






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






20. A crystalline patter found in iron meteorites






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






22. Jupiter






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






24. The final end state of a high mass star. .An entity for which gravity has completely overwhelmed all other forces of nature.






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






26. The amount an image is enlarged by a telescope






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






28. The gap etween saturn's A and B rings






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






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






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






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






33. IO






34. The rate of expansion of the universe.






35. The philosophical stand that says a simpler explanation is more likely to be correct than a complicated one.

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36. The law that describes the blackbody curve - and let to quantum mechanics.

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37. What is the universe expanding into?






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






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






40. Disk dust grains are made of all the elements that are not in gaseous form in space which blocks starlight and causes interstellar extinction






41. The layer of the sun just above the photosphere






42. Rich= dense crowded cores of galaxies - poor= few members and a looser organization of galaxies






43. A fusion process in which a carbon atom transmutes to oxygen and back - creating a helium atom in the process






44. Venus






45. An energetic event taking place in the early universe






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






47. The particle horizon is the farthest we can see. It exists because the universe had a beginning and thus a definite age. Light from distances farther away from the particle horizon have not had time to reach us yet.






48. A toroidal or donut-shaped collection of material attracted to a central body like a star or black hole. Dust around an object






49. The 'edge' of the universe. Light beyond this has not reached us yet.






50. 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.






Can you answer 50 questions in 15 minutes?



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