154 psf3 ☼ ☢ Name:

  1. The graph plots three data sets for three different possible mathematical models for the frisbee data. One data set is plotted as squares, one as circles, and a third as triangles.
    Graph with shapes fed by different functions background rectangle major grid lines axes data points as rectangles leftmost data set data points as circles data points as triangles text layers Data independent variable dependent variable y-axis labels 0 40 80 120 160 200 240 280 320 360 400 x-axis labels 0 4 8 12 16 20 24 28 32 36 40
    1. __________ Which shape plots data modeled by a linear mathematical trend line model?
    2. __________ Which shape plots data modeled by a non-linear mathematical trend line model?
    3. __________ Which shape plots data that is randomly distributed and cannot be modeled by a trend line model?
    4. __________ For the data that plots linearily, make a mathematical estimate of the slope.
    5. __________ For the data that plots linearily, make a mathematical estimate of the y-intercept.
    6. ____________________ What mathematical model(s), if any, does your pendulum data appear to obey?
  2. Vera Ruben studied the rotation rate of stars around the centers of galaxies. According to Newton's theory of gravitation, stars closer to the center of the galaxy should be moving more rapidly around the center of the galaxy than stars farther out from the center. Is that what Dr. Rubin found, and if not, what did she find to be true?



  3. Carlos Frenk discovered that without dark matter, computer simulations of the universe did not form galaxies. For galaxies to form, Frenk found which of the following to be true:
    (a) Dark matter had to be one fifth the mass of visible matter.
    (b) Dark matter had to be equal to the mass of visible matter.
    (c) Dark matter had to be five times the mass of visible matter.
  4. The Soudan mine dark matter experiment searched for dark matter particles called ____________________.
  5. ________ Does dark matter interact with itself?
  6. More recent research has revealed the existence of dark energy. Dark energy is an unknown source of energy that is causing the universe to expand faster and faster. In the phantom energy theory dark energy will eventually rip the universe apart in an event called the "Big Rip." When will the Big Rip happen?
    (a) Before final examinations (b) This summer (c) Within your lifetime (d) Billions of years from now
  7. Does a site swap throw of 3 land in the same hand or the other hand?
  8. Use arrows to trace the path for the ball below for the site swap equation 3 and 51



3: ⚽  ⚽  ⚽
   ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ 
    R   L   R   L   R   L   R   L   R   L   R   L   
	 
	 
	 
	
51: ⚽     ⚽      ⚽
   ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ ___ 
    R   L   R   L   R   L   R   L   R   L   R   L