What is the measure of duration represented by?

• A. m
• B. Hz
• C. s
• D. kg

Answer: (C)

The measure of duration is represented by the unit of seconds, which is abbreviated as 's'. In the context of physical measurements, seconds are used to quantify time, making them essential for measuring how long an event lasts, the interval between events, or any aspect of temporal measurement in various scientific and practical applications.

Other options refer to different physical quantities: 'm' stands for meters, which measure length; 'Hz' represents hertz, a unit of frequency measuring cycles per second; and 'kg' denotes kilograms, which measure mass. Hence, the only appropriate choice for duration is seconds, emphasizing its role as the standard unit in measuring time across various scientific disciplines.