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5 Written questions

5 Matching questions

  1. The distance that light can travel in one year is called a ____________________.
  2. The larger a star is, the ____________ its main sequence will be.
  3. What happens to the pitch of a car horn as it approaches a listener?
  4. A light source that is rapidly moving away from an observer will exhibit ____________.
  5. One explanation for the accelerating expansion for the universe is an undiscovered form of energy called ________________________.
  1. a redshift
  2. b dark energy
  3. c the pitch goes up (increases in frequency)
  4. d shorter
  5. e light year

5 Multiple choice questions

  1. spiral
  2. white dwarf
  3. helium
  4. black hole
  5. 10 billion years

5 True/False questions

  1. What conditions are necessary for nuclear fusion to occur?white dwarf


  2. What is the most widely accepted explanation for how the universe formed?Big Bang theory


  3. The coolest stars burn ________, while the hottest stars burn ________.shorter


  4. How are elements heavier than iron created?supernovas


  5. What object will be created by the supernova when the leftover core is less than about 5 times the mass of the Sun?neutron star