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Day: Quiz

  
  
  
  
  

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Question 1: the period of light when the Sun is above the local horizon (i.e., the time period from sunrise to ________);
TwilightDayNightSunset

Question 2: This is the time as indicated by ancient hemispherical ________.
Time zoneSolar timeSundialLongitude

Question 3: The difference in time depends on the angle at which the Sun rises and sets (itself a function of ________), but amounts to almost seven minutes at least.
LatitudePrime MeridianEquatorAntarctic Circle

Question 4: In ________, the day was reckoned from sunrise to sunrise.
Ancient EgyptNew KingdomPtolemaic KingdomAlexander the Great

Question 5: … the duration of 9 192 631 770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the caesium 133 ________.
ElectronMatterPhotonAtom

Question 6: Additionally, the atmosphere ________ sunlight in such a way that some of it reaches the ground even when the Sun is below the horizon by about 34 minutes of arc.
MetamaterialRefractive indexOpticsRefraction

Question 7: The main one is "world time" or ________ (UTC).
Radio clockCoordinated Universal TimeTime standardTime zone

Question 8: mean solar day - average time of a single rotation of a planet with respect to its ________.
Binary starSupernovaStarStellar classification

Question 9: To keep the civil day aligned with the apparent movement of the Sun, positive or negative ________ may be inserted.
Leap secondRadio clockSidereal timeCoordinated Universal Time

Question 10: The reason for this apparent motion is the rotation of the Earth around its axis, as well as the revolution of the Earth in its ________ around the Sun.
Orbital mechanicsOrbitOrbital elementsLagrangian point
















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