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Science Exam (Astronomy I)

klar iza Science Something Inglés 63 fichas

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  1. 1DEFINE CoronaThe outermost layer of the Sun.
  2. 2DEFINE SupernovaA star that suddenly increases due to an explosion that ejects most of its mass.
  3. 3What are the two possible outcomes of a supernova?A neutron star or a black hole.
  4. 4Name the layers of the sunCorona, chromosphere, photosphere, convective zone, radiative zone and the core.
  5. 5DEFINE Hertzsprung-Russell DiagramA diagram that displays the relationships existing between star properties.
  6. 6DEFINE ChromosphereA thin layer that has a red cast to it.
  7. 7DEFINE Convective zoneA region where huge bubbles of hot plasma ooze to the surface carrying energy.
  8. 8DEFINE Radiative zoneLight and other forms of radiation are constantly absorbed and re-emitted in all directions in the area.
  9. 9Characteristics of a black hole1. Mass of more than 40 times the mass of the Sun.
    2. A strong gravity that light can't escape.
  10. 10Characteristics of a neutron star1. Mass of 10-40 times the mass of the Sun.
    2. If the star's core becomes more than a ball of neutrons.
    3. Extremely dense.
  11. 11How is a star formed?After a nebula collapses. The area where it has the most amount of matter will draw material towards it through gravity, where a star will form. When temperatures rise, the core will form a protostar.
  12. 12DEFINE Solar systemThe sun held together with all the planets and other celestial objects held together by the Sun's gravitational attraction. The celestial objects orbit around the Sun.
  13. 13DEFINE Low mass starStars that are less than half the mass of the Sun. They are the smallest, coolest and dimmest stars. They are small red stars and cool into smaller white dwarfs.
  14. 14DEFINE Medium mass starsThey burn their fuel faster than low mass stars. A medium mass star will collapse under its own gravity, reignite, expand into a red giant then collapse again.
  15. 15DEFINE High mass starHigh mass stars are more than 10 times the mass of the Sun. They go through a process like low mass stars but at a faster pace. They are hotter, brighter and bluer than other stars. Extremely high temperatures will cause the star to expand into a supergiant.
  16. 16DEFINE CoreThe innermost part of the Sun. This where nuclear fusion happens. It is what causes the Sun to swell outward.
  17. 17DEFINE CometsCelestial objects made up of ice and dust. When it trails from the Sun it leaves a "tail" of dust and gas particles.
  18. 18DEFINE MeteorA meteoroid that begins to burn up as a result of friction upon entering our atmosphere. It is a small piece of rock or metal that travels throughout the solar system.
  19. 19Rocky or gaseous? SaturnGaseous
  20. 20Rocky or gaseous? MarsRocky
  21. 21Rocky or gaseous? EarthRocky
  22. 22Rocky or gaseous? MercuryRocky
  23. 23Rocky or gaseous? JupiterGaseous
  24. 24Rocky or gaseous? UranusGaseous
  25. 25Rocky or gaseous? NeptuneGaseous
  26. 26DEFINE Celestial objectsObjects that we can see in the sky.
  27. 27DEFINE StarA ball of plasma that shines because of nuclear fusion that is happening in its core. The Sun is the closest star to Earth.
  28. 28Inner Solar System PlanetsMercury, Venus, Earth and Mars.
  29. 29Outer Solar System PlanetsJupiter, Saturn, Uranus and Neptune
  30. 30Rocky or gaseous? VenusRocky
  31. 31DEFINE Astronomical unit (AU)The average distance between the Sun and Earth.
  32. 32The Big Bang TheoryThe theory that the universe formed when an infinitely dense point suddenly expanded in a single moment.
  33. 33How can we tell there's a black hole?A number of stars can be seen rapidly orbiting around a point in space where there's nothing there.
  34. 34Are black holes common?Yes
  35. 35The name of our galaxy isThe Milky Way
  36. 36DEFINE Light-year (LY)The distance a beam of light can travel through space in 1 year.
  37. 37DEFINE Black holeAn area of space where gravity is so strong nothing can escape.
  38. 381 LY = ? AU63 241 AU
  39. 39DEFINE AsteroidA small rocky body orbiting the sun.
  40. 40DEFINE AstronomyThe scientific study of the universe and the objects in it, including stars, planets, nebulae, and galaxies.
  41. 41DEFINE AstronomerAn expert in astronomy.
  42. 42DEFINE CanadarmThe popular name for a robotic manipulation system designed for use in zero gravity.
  43. 43What is the purpose of the Canadarm?To retrieve or deploy objects in outer space.
  44. 44DEFINE ConstellationGroup of stars that resembles a recognizable form.
  45. 45DEFINE DextreA two armed robot that does repairs that would otherwise require spacewalks.
  46. 46DEFINE Dwarf starA star of relatively small size and low luminosity.
  47. 47DEFINE GalaxyA collection of hundreds of billions of stars held together by gravity.
  48. 48What is the ISS?The International Space Station is a space station, or a habitable artificial satellite, in low Earth orbit.
  49. 49DEFINE LuminosityThe inherent brightness of a celestial object.
  50. 50DEFINE MeteoroidSmall pieces of rock or metal that travel throughout the solar system with no fixed path.
  51. 51Define NEBULAA large cloud of dust and gas
  52. 52DEFINE Nuclear fusionProcess where the nuclei of atoms fuse together and form larger atoms. During this, an enormous amount of energy is released.
  53. 53DEFINE OrbitThe curved path of a celestial object or spacecraft around a star, planet, or moon,
  54. 54DEFINE PlanetCelestial object that orbits one or more stars and is capable of forming into a spherical shape as it melds under the weight of its own gravity.
  55. 55DEFINE ProtostarA star in its first stage of formation.
  56. 56DEFINE Red giantA very large star of high luminosity and low surface temperature.
  57. 57DEFINE RevolutionOne complete orbit of Earth around the Sun (takes one year)
  58. 58DEFINE RotationOne complete spin of Earth on its axis (takes 24 hours)
  59. 59DEFINE SatelliteA device placed in orbit around Earth or another celestial object.
  60. 60DEFINE Solar flareMassive explosion on the surface of the Sun.
  61. 61DEFINE Solar prominenceA large, bright, gaseous feature extending outward from the Sun's surface, often in a loop shape.
  62. 62DEFINE SunspotRegion on the Sun's surface that is cooler than the surrounding areas.
  63. 63DEFINE UniverseEverything that physically exists. The entirety of space and time, and all forms of matter and energy.

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Something (Astronomy) Science Fichas sobre Science Exam (Astronomy I), creado por klar iza el 01/01/2016.
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