in early times,people measured thing with their body parts.for example hand span.
I would use the unit of time, such as seconds or milliseconds, to measure the duration between blinks of the eyes.
A second is a unit of time used to measure intervals. Time is a broader concept that encompasses the measurement of events and the progression of past, present, and future. Seconds are a way to quantify time in a precise manner.
Speed.
The unit used to measure period is the second (s). It represents the time taken for one complete cycle of a periodic wave, such as a sound wave or electromagnetic wave.
You would use the unit of measure called "kilograms" to measure the mass of an elephant.
Early mornings
The SI unit is the second.
seconds
seconds
The SI unit of time is the "second".
A second.
A second is a measure of time, or a unit of time.
The base unit for time is the second.
second
the 'second'
The second.
Unit for time is a second.There are various instruments to measure temperature: a thermometer, a thermocouple are two.