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. In Ptolemy's geocentric solar system - the large circle on which a planet's epicycle moved around the Earth.






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






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






4. The crust of a meteorite caused by its entry into Earth's atmosphere






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






6. Highlands: rocks are made of lighter anorthosite (similar to old earth rocks) Maria: rocks made of heavy mare basalt (volcanic rock) everywhere else is loose regolith created by meteoric impact.






7. Milky way galaxy is a member - a small poor cluster-about 30 galaxies






8. The law that syas light energy from a blackbody increases as (temperature^4)






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






10. The mirror that gathers the light in a reflector






11. The area behind a lens where images are resolved






12. Venus






13. The oldest part of the Milky Way






14. A push or a pull






15. Venus






16. Small moons that maintain the shape of rings around Saturn and Uranus






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






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






19. The assumption that the universe is isotropic (same in all directions) and homogeneous (Same everywhere throughout)






20. A repeated - periodic push or pull capable of summing into a larger push or pull






21. The distance light travels in one year (=9.46x10^12km).






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






23. The ratio of the actual density of the universe to the critical density. (actual density divided by the critical density






24. Extends to a distance of 50000AU. Same objects as in the Kuiper belt-when they fall in toward the sun they become comets. Debris from comets hitting the Earths atmosphere cause meteor showers.






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






26. Half of the longest diameter across an ellipse






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






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






29. 1μm 100 nm






30. N=are*Fp(Ne)(Fl)(Fi)(Fc)(L) N: number of civilizations possible to communicate with are*: rate solar-like stars are created Fp: fraction of stars with planets Ne: number of planets like ours Fl: fraction of planets with life Fi: intelligent life Fc:






31. Cold aggregates of gas - large and contain a huge amount of matter - so cold that molecules stick together to form molecules.






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






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






34. The layer of the sun just above the photosphere






35. Originially thought to be stars emitting radio radiation but are now concluded to be nuclei of distant galaxies (same as radio galaxies aka emit streams of material)






36. A large and bright but cool star.






37. Europa






38. Massive compact halo objects (MACHO) - weakly interacting massive particles (WIMPY's)






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






40. A star fusing hydrogen to helium in it's core






41. The linear correlation between the rate of the expansion of the universe and distance. Says that as galaxies get farther away in space - the speed with which they recede from us increases. So we can measure the amount of recessional velocity and use






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






43. A word used in astronomy to describe all elements besides hydrogen and helium






44. When the Sun is farthest north of the celestial equator (about June 22)






45. A planet orbiting about a distant star






46. Hydrogen and helium (mainly)






47. An element of a highly efficient - two-dimensional electronic light detector






48. A collection of comets in the plane of the solar system - located beyond the orbit of Pluto






49. When the Moon entirely blocks the Sun.






50. Large bulge - tightly wound spiral arms - relatively few h2 regions and are smooth







Sorry!:) No result found.

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