Greg’s sections came up with some ideas for questions that could be on tomorrow’s test. Here’s what they came up with in no particular order:

• From “coldest” to “hottest”, what are the 4 states of matter?
  
• In what state of matter does the position of electrons greatly differ from the others, and what is that difference?
  
• How does the speed of molecules reflect temperature?
  
• How do elements differ from each other?
  
• How would the strength of gravitational force change if the mass of the moon increases 10 times its normal mass? If the distances is 10 times closer?
  
• Identify each celestial body based on the given characteristics:
  
  • 3D, shape can vary, contains stars and planets
    
  • Little bright points in space made of gas; forms constellations, very hot!
    
  • orbit stars, found in solar systems, ability to sustain life
    
  • Dense group of stars located near the outskirts of the galaxy, stars close together so that they overlap
    
• What is the bottom one?
  
  • How is it produced?
    
  • What information can we gain from it?
    
• Which end of the spectra would the emission from an O star peak? An M star?
  
• What is light?
  
• What is energy?
  
• What are 4 fundamental characteristics of light?
  
• How does energy transform from one form to another?
  
• Define temperature. What are 3 scales of temperature?
  
• What is the “inverse square law” and how does it relate to gravity? (see p. 69)
  
• Star A is 1 solar mass and 6000K; Star B is 3 solar masses and 6000K: Which star contains more energy?
  
• Where does a roller coaster have the most potential energy? Where is the most kinetic energy? Explain
  
• In which state of matter would you find completely ionized atoms? Why?
  
• What is the stellar sequence?
  
• How do colors and spectra differ along the stellar sequence?
  
• What does the stellar sequence tell us about the structure of stars?
  
• What are the goals of Astronomical research?
  
  • find the role of humans in the universe, look for life beyond Earth, apply general physics to entire universe
    
• What is the difference between a galaxy and a solar system?
  
  • A galaxy is made up of many solar systems
    
• Place the following in order of increasing size:
  
  • 1. Planet; 2. Star; 3. Magellanic Clouds; 4. Galaxy; 5. Local Group
    
  
  In addtion, Marcel recommends the following questions out of the book:
  
  • P 294, 1
    
  • P 294, 3
    
  • P 294, 4
    
  • P 294, 8
    
  • P 108, 2
    
  • P 109, 7
    
  • P 350, 4
    
  • P 350, 5