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Second: Quiz


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Question 1:
Which of the following units was Second a part of?
, Schutzstaffel, 1930 1945
Fourth Army
Armoured Corps

Question 2: The realization of the standard second is described briefly in a special publication from the National Institute of Science and Technology,[2] and in detail by the ________.
Communications Security Establishment CanadaCanadian Space AgencyCanadian government scientific research organizationsNational Research Council (Canada)

Question 3: In 1000, the Persian scholar ________ gave the times of the new moons of specific weeks as a number of days, hours, minutes, seconds, thirds, and fourths after noon Sunday.
Nasir al-Din al-TusiAl-KindiAbu Rayhan BiruniAlhazen

Question 4: [13] As a result, in 1967 the Thirteenth General Conference on Weights and Measures defined the second of atomic time in the ________ as
Systems of measurementConversion of unitsMetric systemInternational System of Units

Question 5: Instead, the non-SI units minutes, hours, ________, Julian years, Julian centuries, and Julian millennia are used.
DayGregorian calendarCalendarIslamic calendar

Question 6: [8] The first mechanical clock displaying seconds in Western ________ was constructed in Switzerland at the beginning of the 17th century.
BalkansEuropeWestern EuropeEastern Europe

Question 7: The ground state is defined at zero electric and ________.
MagnetismMaxwell's equationsMagnetic momentMagnetic field

Question 8: He called it the "observational clock" in his In the Nabik Tree of the Extremity of Thoughts, where he described it as "a mechanical clock with three dials which show the hours, the minutes, and the seconds." He used it as an ________, particularly for measuring the right ascension of the stars.
Water clockAl-JazariCastle clockAstronomical clock

Question 9: 1/60 minute (but see also ________)
DayRadio clockCoordinated Universal TimeLeap second

Question 10: ________ are frequently combined with the word second to denote subdivisions of the second, e.g., the millisecond (one thousandth of a second), the microsecond (one millionth of a second), and the nanosecond (one billionth of a second).
Engineering notationMega-SI prefixGiga-

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