E1 Astrophysics E1 - E2.4

9 Questions | Total Attempts: 639

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Astrophysics Quizzes & Trivia

Introduction to Astrophysics.


Questions and Answers
  • 1. 
    What are comets made of?
    • A. 

      Sugar and spice and all things nice?

    • B. 

      Slugs and snails and puppy dogs' tails

    • C. 

      Frozen ice and carbon dioxide, hydrogen and helium

    • D. 

      Frozen ice and carbon dioxide, methane and ammonia

    • E. 

      Hydrogen, helium, methane and ammonia

  • 2. 
    Define a light year.
    • A. 

      The time it takes light to travel for a year.

    • B. 

      The distance light travels in a year.

    • C. 

      Time between starting and finishing when light travels through space

    • D. 

      None of the above

  • 3. 
    What is the diameter of our galaxy
    • A. 

      100 LY

    • B. 

      1,000 LY

    • C. 

      10,000 LY

    • D. 

      100,000 LY

    • E. 

      1,000,000 LY

  • 4. 
    What are the largest gravitationally bound structures?
    • A. 

      Solar system,

    • B. 

      Galaxy

    • C. 

      Stellar cluster

    • D. 

      Galaxy cluster

    • E. 

      Super cluster

  • 5. 
    What apparent effect is caused by the rotation of the earth on its axis?  
    • A. 

      Stars move around pole star

    • B. 

      Sun moves into different constellations during the year

    • C. 

      Stellar parallax

    • D. 

      Microwave background radiation

  • 6. 
    What provides the radiant energy for most stars?
    • A. 

      Hydrogen combustion in core

    • B. 

      Hydrogen combustion in shell.

    • C. 

      Hydrogen fusion in core.

    • D. 

      Hydrogen fusion in shell.

  • 7. 
    What is the most important thing about a start which determines pretty much everything about it?
    • A. 

      Temperature

    • B. 

      Luminosity

    • C. 

      Mass

    • D. 

      Age

    • E. 

      Life expectancy

  • 8. 
    What happens to the luminosity if you compare with a start which has twice the mass (what will be the luminosity of the larger star)?
    • A. 

      The luminosity will be half as big.

    • B. 

      The luminosity will be the same.

    • C. 

      The luminosity will be twice as much.

    • D. 

      The luminosity will be 3x as much.

    • E. 

      The luminosity will be 4x as much.

    • F. 

      The luminosity will be 8x as much.

  • 9. 
    Are there any parts of this topic so far that you find difficult?