What Is Standard Unit Of Time
What is standard unit of time
TIME is what we refer to as the duration, the measure at which clock reads, and the way we distinguish the past, present, and the future.
Most often in physics and math problems, we would somehow take note that time is one of the most common used quantity. This quantity could help us solve the distance and velocity a moving object could achieve and have on kinematics problems; and the age of a person basing on the years the problem has stated.
Time is often expressed in certain units like seconds, minutes, hours, days or months. But among all, which is actually the standard unit of time?
The INTERNATIONAL SYSTEM OF UNITS (SI) has used "seconds" as the standard unit of time which is among one of the SI base units, namely
Ampere (A) for electric current;
Kelvin (K) for temperature;
Second (s) for time;
Meter (m) for length;
Kilogram (kg) for mass;
Candela (cd) for luminous intensity; and
Mole (mol) for amount of substance
SECONDS is derived from the division of a day of 24-hours, then to a 60 minutes an hour, then to 60 seconds a minute. It is, in science way of defining it, the duration of 9 billion oscillations of a cesium atom.
One proof that second is the standard unit of time is that most cases in solving problems, and derived units, second has always been used. One concrete example is the unit Newton which is equal to 1kg.m/sec^2.
For more related topics, see links below.
Comments
Post a Comment