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 relation that tells how light dims with distance.






2. A term referring to Earth-like planets






3. A telescope that uses lenses to focus light






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






5. Approximate speed of light in a vacuum






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






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






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






9. A term referring to Jupiter-like planets






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






11. When particles are compressed to an unnatural state where their pressure is not related to their temperature






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






13. Galaxies whose nuclei emit jets of materil at high speeds. material comes from supermassive black holes






14. 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.






15. A large and bright but cool star.






16. 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






17. The 11 or 22 period on the sun durin which sunspots increase - decrease - change polarity - increase and decrease again.






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






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






20. An energetic event taking place in the early universe






21. Why do Galaxies move very rapidly in the interiors of the dense clusters?






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






23. Galaxies whose nuclei emit jets of materil at high speeds. material comes from supermassive black holes






24. Heavier elements such as iron - silicon - magnesium - sulfer - nickel






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






26. When the Moon entirely blocks the Sun.






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






28. The study of the universe as a whole.






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






30. Elliptical orbits that come inside orbit of the Earth.






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






32. Poitns of gravitational stability in the orbit of a planet






33. 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)






34. That which is responsible for Jupiter's magnetic field






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






36. After stars form they pump light energy into surrounding gas causing it to heat up and glow (H2=ionized hydrogen - H1= neutral hydrogen in molcular couds)






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






38. A nearby galaxy with a quasar-like nucleus. closer but less bright than quasars-weaker






39. The point directly overhead.






40. A very low mass particle formed in solar fusion reactions that reacts only weakly with matter






41. Jupiter






42. A location on an H-are Diagram where evolving stars pulsate






43. The rotation period of the Earth measured relative to the Sun.






44. A small round distribution of gas surrounding a dying star






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 gap inthe outer portion of Saturn's A ring






47. Half of the longest diameter across an ellipse






48. The class of all objects having high energy radiation coming from their nuclei. Active Galactic Nucleus- Blazars - Quasars - Radio and Emit synchrotron radiation






49. A representation of the changes in color and brightness of an evolving protostar.






50. Is space infinitely large?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183