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Jeopardy

Jeopardy. Choose a category. You will be given the answer. You must give the correct question. Click to begin. Choose a point value. Choose a point value. Click here for Final Jeopardy. Spectra. Stars. Time. Vocabulary. Miscellaneous. 10 Point. 10 Point. 10 Point. 10 Point.

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Jeopardy

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  1. Jeopardy Choose a category. You will be given the answer. You must give the correct question. Click to begin.

  2. Choose a point value. Choose a point value. Click here for Final Jeopardy

  3. Spectra Stars Time Vocabulary Miscellaneous 10 Point 10 Point 10 Point 10 Point 10 Point 20 Points 20 Points 20 Points 20 Points 20 Points 30 Points 30 Points 30 Points 30 Points 30 Points 40 Points 40 Points 40 Points 40 Points 40 Points 50 Points 50 Points 50 Points 50 Points 50 Points

  4. By measuring the red-shifts of the most distant galaxies, it is possible to calculate the • a. Doppler shifts • b. apparent magnitudes • absolute magnitudes • expansion rate of long ago

  5. Expansion rate of long ago

  6. The diagram above shows a standard spectrum compared to that of a distant star. From this figure, what can you conclude about this stars motion relative to Earth?

  7. The star is moving away from earth (red shift)

  8. A solid, opaque object can be heated to different temperatures. What happens to the luminosity and wavelength of the light emitted by this object as the temperature increases?

  9. Brighter and shorter wavelength

  10. What type of spectra does an incandescent light have compared to Helium gas?

  11. Incandescent – continuous spectrum Helium gas- emission line spectrum

  12. How far does a radio wave travel in 6 minutes? (speed of light 3 x 108 m/s). D = s x t

  13. (3 x 108)(3.6x 102) 10.8 x 1010 1.08 x 1011 m

  14. Why is star C brighter than star D?

  15. C is hotter

  16. Why is star B brighter than Star A?

  17. Star B (main sequence) is larger

  18. The fusion of hydrogen to helium occurs in what type of stars?

  19. Main sequence stars like the sun

  20. As time goes on, what will happen to the ratio of Hydrogen to Helium in this star?

  21. Helium increase as hydrogen decrease

  22. The sun is in equilibrium meaning it neither shrinks nor grows, this is due to a balance between what two features?

  23. Gravity and gas pressure

  24. An astronomer uses a telescope to observe a star. The color of the star indicates that it has a size and surface temperature similar to that of the Sun. Using this information, the astronomer can conclude that the star • is older than the Sun. • will survive for several billion years. • is moving very quickly away from Earth. • has a mass similar to the mass of Jupiter.

  25. Will survive several billion years

  26. How long will a star with the same mass as the sun stay on the main sequence?

  27. 10 billion years

  28. According to Big bang, age of universe is calculated to be about how old?

  29. 13-14 billion years

  30. As mass increases, what happens to the life span of a star?

  31. As mass increases, stars do not live as long

  32. About how long would a star with a mass 1.5 times that of the sun live?

  33. 5 billion years

  34. Theory that states universe began as pure energy

  35. Big Bang

  36. FREE

  37. FREE

  38. The group our milky way galaxy belongs to

  39. Local Group

  40. Used to measure the distance of stars within 1,000 light years of earth

  41. Parallex

  42. You look at two stars in the night sky and notice one appears brighter. What property or characteristic of the star is this?

  43. Apparent magnitude

  44. Evidence suggests the universe contains a great amount of ___________matter

  45. Dark matter

  46. How long after Big Bang did it take universe to cool to 109oC?

  47. 3 minutes

  48. Heaviest element formed in core of a star?

  49. iron

  50. According to recent observations, what is occurring to the rate of expansion of universe?

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