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. Loops that trace the magnetic field as it erupts from a sunspot area and arches over to an adjacent area. They glow in the light of gas pouring out of corona and falling into photosphere.






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






3. We can infer the absolute magnitude of pulsating variable stars by measuring their pulsation periods. The longer the pulsations - the greater their luminosities. We then again measure their apparent magnitudes - compare it with their absolute magnitu






4. Earth






5. Jupiter






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






7. The distance between a lens and its focal plane






8. Clouds of low density gas often found glowing faintly on either side of an AGN.






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






10. A high-pressure bulge in Neptune's southern hemisphere






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






12. When material is heated and moves taking the heat energy with it






13. Electromagnetic Radiation






14. The surface of the sun






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






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






17. Mercury






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






19. 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)






20. 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 ________.






21. The dark - relativley smooth areas on the moon; Latin for sea






22. A faint - remarkably uniform distribution of radiation in space






23. A measure of how an object resists accelerating when acted upon by a force. It is proportional the amount of matter in an object






24. In Ptolemy's geocentric solar system - the small circle on which a planet moved.






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






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






27. The oldest grouping of stars - found in the galaxy halo






28. Largest moon in solar system - two differenet types of terrain - darker terrain is older - NOT ACTIVE SURFACE






29. Centered on the Earth






30. The apparent magnitude a star would have if it were at a distance of 10 parsecs.






31. Europa






32. Medium bulge - moderately would arms - arms have H2 regions in them and look sort of lumpy






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






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






35. What is the universe expanding into?






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






37. The normal eastward movement of a planet against the background of hte distant stars.






38. The location in an H-are diagram of a star cluster - where stars have just left the main sequence. Used to estimate the cluster age.






39. The shadow area behind the Earth or Moon where the Sun is completely obscured.






40. Stars fromt he Halo that have drifted into the disk. as earth zooms past them in a faster orbit they appear to be going backward very fast






41. The gap inthe outer portion of Saturn's A ring






42. Jupiter






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






44. The surface of the sun






45. The amount an image is enlarged by a telescope






46. Any class of objects with a uniform luminosity used to determine distance.






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






48. The shadow area behind the Earth or Moon where the Sun is completely obscured.






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






50. 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)






Can you answer 50 questions in 15 minutes?



Let me suggest you:

Browse all subjects

Browse all tests

Most popular tests



Major Subjects

Tests & Exams


AP
CLEP
DSST
GRE
SAT
GMAT

Browse all subjects

Browse all tests

Most popular tests