Question

Identify the fundamental SI units for mass, length and time respectively.
(A). Newton, meter,minutes
(B). Kilogram, meter, second
(C). Pound, foot, hour
(D). Pound, foot, second
(E). Kilogram, centimeter, hour

Answer 1

Hint: SI unit of measurements is the international system of measurements of units. To make the communication easy, SI units are accepted world-wide. The unit of time is the same in SI and CGS systems.

Complete step-by-step answer:

The units of measurements are classified in three types of units:
Fundamental units: These are independent of the basic unit of measurement, depending on basic quantities.
Supplementary units: There are two supplementary units, angle and staradians. These units don’t have dimensions.
Derived unit: these are the unit of physical quantities which are dependent on fundamental units.
The SI unit of mass is kilogram.
The SI unit of length is Meter
The SI unit of time is second.

So, the SI unit of mass, length and time is kilogram, meter and second.

Correct option is B.

Note: Newton is the SI unit of the force. The CGS unit for force is dyne.
Other than SI and CGS we have an FPS system of measurement. In the FPS system, the unit of mass is the pound and the unit of length is foot. The unit for time is second in the FPS system.