How Much Do You Know About Terrestrial Period?

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  • 1/10 Questions

    The International Bureau of Weights and Measures distributes the tables that can be used to obtain TT from TAI.

    • True
    • False
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About This Quiz

Are you someone who has a keen interest in astronomy? How much do you know about the terrestrial period? Take this terrestrial period quiz, and see what your understanding of this topic is. This quiz is going to be a practice test as well as informative in terms of learning. Go for it and check out what you score. All the best for a perfect score here! You can also share the quiz with others with the same area of interest as yours.

How Much Do You Know About Terrestrial Period? - Quiz

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  • 2. 

    The Astronomical Almanac uses TT for its ephemerides of 

    • Sun

    • Moon

    • Planets

    • All of the above

    Rate this question:

  • 3. 

    What does the unit of TT, the SI second, is based on?

    • Cesium molecular clock

    • Cesium atomic clock

    • Cesium atomic number

    • Cesium molecular number

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  • 4. 

    What formula is used for calculating the Terrestrial Period?

    • TT = TAI* + 3 seconds

    • TT = TAI* + 52 seconds

    • TT = TAI* + 32.184 seconds

    • TT = TAI* + 16.45 seconds

    Rate this question:

  • 5. 

    What is Terrestrial Time used for?

    •  Distance measurements of astronomical observations made from the surface of the Earth.

    •  Time measurements of astronomical observations made from the surface of the Earth.

    •  Time measurements of astronomical objects when sent from the surface of the Earth.

    • All of the above

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  • 6. 

    What is TAI?

    • International Time Atomic

    • International Atomic Time

    • Atomic Time International

    • Time Atomic International

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  • 7. 

    Who introduced Ephemeris Time (ET)?

    • TDT

    • IUA

    • TDD

    • IAU

    Rate this question:

  • 8. 

    What is the original purpose of Ephemeris Time?

    • To be free of irregularities in the Earth's rotation.  

    • To be free of the Earth's rotation

    • Both a & b

    • None of the above

    Rate this question:

  • 9. 

    In TDT, where is the observer?

    • On another planet

    • On moon

    • On earth

    • On mars

    Rate this question:

  • 10. 

    TD used in the theories of motion for bodies ___________.

    • On earth

    • In the solar system

    • On planets

    • None of the above

    Rate this question:

Quiz Review Timeline (Updated): Nov 16, 2023 +

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  • Current Version
  • Nov 16, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Dec 25, 2022
    Quiz Created by
    Sophia Smith

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