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. Stars orvits do not define the spiral patterns - instead they are density waves that move at slower speeds (arms are defined by young O and B stars and gas clouds)






2. Sc galaxies






3. Dying large-mass stars lose their outer layers in a violent explosion creating large - chaotic remnants. these brighten like nova but are so much brighter and only occur ONCE PER STAR






4. The distance a moon can be from a planet before shattering from tidal forces






5. A telescope that uses mirrors to focus light






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






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






8. The entity from which the whole universe is postulated to have come from.






9. The rotation of a star or planet at different speeds at its equator and poles






10. The slow wobble of the Earth on its rotation axis.






11. Venus






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

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13. The study of the universe as a whole.






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






15. The Big Bang was not an explosion of matter into empty space - like the explosion of a bomb. Instead - it was an emergence of space and time filled with pure energy where before none of this was present. The point from which is emerged is called the






16. A star without enough mass to begin hydrogen fusion






17. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas






18. A long-lived high-pressure bulge in Jupiter's southern hemisphere






19. A small and dim but hot star.






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






21. A cloud of ionized hydrogen. Formed when young stars heat the surrounding gas






22. Titan






23. The fusion process that turns three helium nuclei into a carbon nucleus






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






25. The area behind a lens where images are resolved






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






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






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






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






30. A perfect absorber and radiator of electromagnetic radiation.






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

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32. The measure of a variable star's apparent magnitude as it brightens and dims with time






33. Possible Fates of the Universe






34. In what chemical form are jupiters nitrogen - carbon and oxygen?






35. Jupiter






36. The lens in a telescope used to determine the magnification






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






38. Sc galaxies where star formation and destruction is so rapid that supernova explosions are mainly responsible for compressing gas to create new stars.






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






40. Dying small mass stars lose their outer layers in a relatively gentle way - creating a round or bipolar nebula about the star (round like planets)






41. The science of measuring the apparent magnitudes of stars by imaging them through different filters.






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






43. The surface of the sun






44. Centered on the Earth






45. Titan






46. The projection of the Earth's equator onto the celestial sphere.






47. Thick rigid crust - no longer has plate tectonics but still has convective hot spots that create earth-like volcanoes except that last for billions of years because of lack of tectonics.






48. Stars orvits do not define the spiral patterns - instead they are density waves that move at slower speeds (arms are defined by young O and B stars and gas clouds)






49. 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.






50. 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.







Sorry!:) No result found.

Can you answer 50 questions in 15 minutes?


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