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






2. Jupiter






3. The force of attraction between any two objects having mass






4. Star speed at outer edge of galaxy should begin to diminish - but they dont so we guess that this means there is increasing force (aka dark matter)






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






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






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






8. The seasonal shifting of a nearby star's position relative to more distant objects.






9. The apparent path of the Sun through the stars on the celestial sphere.






10. Jupiter






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






12. A small spherical dark nebula






13. Mercury






14. The force of attraction between any two objects having mass






15. The universe is isotropic - homogeneous - and without beginning or end in time and space. If the universe is truly homogeneous then every line of sight will eventually end on a galaxy. If it has existed forever then there has been enough time for lig

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






17. A term referring to Earth-like planets






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






19. The location of a supermassive black hole






20. A fusion process in which protons build together to form helium






21. A spinning neutron star






22. Centered on the Earth






23. The law that predicts the possible types of spectra.

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24. Any change in the speed or direction of an object's motion






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






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






27. Half of the longest diameter across an ellipse






28. 100 nm 10 nm






29. Small compact stars called white dwarfs can have material deposited on their surfaces. In time material heats up and explodes in surface nuclear reaction- star brightens - settles - repeats.






30. The sinking of denser elements to the center of a young molten planet






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






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






33. Small compact stars called white dwarfs can have material deposited on their surfaces. In time material heats up and explodes in surface nuclear reaction- star brightens - settles - repeats.






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






35. Mercury






36. A particle of light.






37. The act of removing an electron from an atom.






38. An energetic event taking place in the early universe






39. A measure of the force of gravity on an object






40. A logarithmically scaled value for the measured brightness of a star.






41. Theory virtually demands that the geometry of the universe be ______. Results of measuring lumps in the cosmic background radiation indicate that the universe geometry is ________.






42. Light scattered through the atmosphere that degrades astronomical images






43. Orbit in Jupiters orbit






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






45. A very dense - highly populated cluster of galaxies






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






47. 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)






48. In a FLAT UNIVERSE(our universe) - the curvature of space-time is ________. Parallel beams will converge/diverge/remain parallel (circle one). The density parameter - Ω0 - is _____.






49. A small chunk of rock in space






50. The process of acquiring material