in early times,people measured thing with their body parts.for example hand span.
Flow of a fluid is measured by its viscosity. Units of measure may be in unit volume per unit of time
Second is the international (SI) unit to measure time.
Speed.
Power is the measure of Work Done in a given time.
Power is the time derivative of work done by a force. It is the energy a force gives to a body or system per unit time.
Early mornings
The SI unit is the second.
seconds
seconds
The SI unit of time is the "second".
A second.
Unit for time is a second.There are various instruments to measure temperature: a thermometer, a thermocouple are two.
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'