General Information On The Astronomy Quiz 15

14 Questions | Total Attempts: 101

SettingsSettingsSettings
Please wait...
Astronomy Quizzes & Trivia

The quick quiz below is the fifteenth one is a series of tests aimed at testing your general understanding on astronomy. It is very interesting and covers a lot of the aspects about the universe you have learnt in various classes. Give it a shot and all the best of luck!


Questions and Answers
  • 1. 
    Information comes to us from the Sun in the form of:
    • A. 

      Infrared waves

    • B. 

      Visible (light) waves

    • C. 

      Ultraviolet waves

    • D. 

      All of the above

    • E. 

      None of the above

  • 2. 
    Light waves are most often labeled using their:
    • A. 

      Amplitude

    • B. 

      Power

    • C. 

      Wavelength and/or frequency

    • D. 

      All of the above

    • E. 

      None of the above

  • 3. 
    The wavelength and the frequency of a wave are related by:
    • A. 

      The color of light

    • B. 

      The speed of light

    • C. 

      The light power

    • D. 

      All of the above

    • E. 

      None of the above

  • 4. 
    The speed of light, "c", is:
    • A. 

      A constant only within our solar system

    • B. 

      A constant only within our galaxy

    • C. 

      A constant everywhere in our universe

    • D. 

      Not constant at all, it depends on the frequency of the light

    • E. 

      None of the above

  • 5. 
    The temperature of the Sun can be determined if we measure the solar spectrum(light intensity vs wavelength) and we compared it to:
    • A. 

      Einstein's theory of special relativity

    • B. 

      Kepler's laws

    • C. 

      The spectral distribution for "black bodies"

    • D. 

      The spectral distribution for "white hot bodies"

    • E. 

      None of the above

  • 6. 
    The mass of the Sun can be determined once we know:
    • A. 

      Newton's laws of gravitational motion

    • B. 

      Kepler's laws

    • C. 

      The actual radar distance between Earth and Venus

    • D. 

      All of the above

    • E. 

      None of the above

  • 7. 
    In addition to the Earth to Sun distance in meters, what is needed to measure the mass of the Sun:
    • A. 

      Just Newton's laws and the distance: so nothing else is needed

    • B. 

      The length of the year in seconds

    • C. 

      The temperature of the Sun

    • D. 

      None of the above

  • 8. 
    The "solar constant" is:
    • A. 

      The principle that the energy from the Sun changes only inperceptibly with time

    • B. 

      The intensity of sunlight above the atmosphere of any planet in watts/m^2

    • C. 

      The intensity of sunlight above the atmosphere of the Earth in watts/m^2

    • D. 

      None of the above

  • 9. 
    Once we know the solar constant and _____ we can determine the luminosity(total energy output per second, in watts) of the Sun.
    • A. 

      The speed of light, c

    • B. 

      The volume of the Sun

    • C. 

      The radius of the Earth's orbit in meters

    • D. 

      All of the above

    • E. 

      None of the above

  • 10. 
    Once we know the Sun's luminosity we can determine the intensity of sunlight (in watts/m^2) at Saturn if we know:
    • A. 

      The surface area of the Sun (in m^2)

    • B. 

      The surface area of Saturn (in m^2)

    • C. 

      The radius of the Sun (in meters)

    • D. 

      The radius of Saturn's orbit (in meters)

    • E. 

      None of the above

  • 11. 
    For Astro 101, the standard solar model is a mathematical model of the Sun that gives:
    • A. 

      Fractions of H to He vs radius in the Sun

    • B. 

      Temperature and density vs radius in the Sun

    • C. 

      Differential rotation vs radius in the Sun

    • D. 

      All of the above

    • E. 

      None of the above

  • 12. 
    The different regions of the Sun are divided by somewhat abrupt changes in:
    • A. 

      Density

    • B. 

      Temperature

    • C. 

      Energy production and/or transport

    • D. 

      All of the above

    • E. 

      None of the above

  • 13. 
    The atoms of H and He are totally ionized(free nuclei and free electrons) in:
    • A. 

      Only the core

    • B. 

      The core and through most of the radiation zone

    • C. 

      All the way out to the photosphere

    • D. 

      All the way to the start of the corona

    • E. 

      None of the above

  • 14. 
    Energy transport between the outside of the radiation zone to the photosphere is via:
    • A. 

      Conduction

    • B. 

      Radiation

    • C. 

      Convection

    • D. 

      None of the above