Instructions for using this template.

1
Instructions for using this template.

• Remember this is Jeopardy, so where I have
  written Answer this is the prompt the students
  will see, and where I have Question should be
  the students response.
• To enter your questions and answers, click once
  on the text on the slide, then highlight and just
  type over whats there to replace it. If you hit
  Delete or Backspace, it sometimes makes the text
  box disappear.
• When clicking on the slide to move to the next
  appropriate slide, be sure you see the hand, not
  the arrow. (If you put your cursor over a text
  box, it will be an arrow and WILL NOT take you to
  the right location.)

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Jeopardy
Choose a category. You will be given the
answer. You must give the correct question.
Click to begin.
3
Choose a point value.
Choose a point value.
Click here for Final Jeopardy
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Stars
Vocabulary
Miscellaneous
Time
Spectra
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
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• 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

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Expansion rate of long ago
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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?
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The star is moving away from earth (red shift)
9
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?
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Brighter and shorter wavelength
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What type of spectra does an incandescent light
have compared to Helium gas?
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Incandescent continuous spectrum Helium gas-
emission line spectrum
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How far does a radio wave travel in 6 minutes?
(speed of light 3 x 108 m/s). D s x t
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(3 x 108)(3.6x 102) 10.8 x 1010 1.08 x 1011 m
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Why is star C brighter than star D?
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C is hotter
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Why is star B brighter than Star A?
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Star B (main sequence) is larger
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The fusion of hydrogen to helium occurs in what
type of stars?
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Main sequence stars like the sun
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As time goes on, what will happen to the ratio of
Hydrogen to Helium in this star?
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Helium increase as hydrogen decrease
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The sun is in equilibrium meaning it neither
shrinks nor grows, this is due to a balance
between what two features?
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Gravity and gas pressure
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• 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.

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Will survive several billion years
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How long will a star with the same mass as the
sun stay on the main sequence?
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10 billion years
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According to Big bang, age of universe is
calculated to be about how old?
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13-14 billion years
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As mass increases, what happens to the life span
of a star?
32
As mass increases, stars do not live as long
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About how long would a star with a mass 1.5 times
that of the sun live?
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5 billion years
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Theory that states universe began as pure energy
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Big Bang
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FREE
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FREE
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The group our milky way galaxy belongs to
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Local Group
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Used to measure the distance of stars within
1,000 light years of earth
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Parallex
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You look at two stars in the night sky and notice
one appears brighter. What property or
characteristic of the star is this?
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Apparent magnitude
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Evidence suggests the universe contains a great
amount of ___________matter
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Dark matter
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How long after Big Bang did it take universe to
cool to 109oC?
48
3 minutes
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Heaviest element formed in core of a star?
50
iron
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According to recent observations, what is
occurring to the rate of expansion of universe?
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Rate of expansion is speeding up
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If the mass of our sun were reduced by one half
of its current mass, approximately how much
longer would it live compared to its current mass?
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5 billion years (15b-10b)
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Final Jeopardy
Make your wager
56

1. What occurs in a main sequence star?
2. What does a main sequence star the size of our
   sun change to after this process ends?

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1. Hydrogen fuses to Helium
2. Red giant