Question

3.
Differentiate between:
(a) area and volume
(b) m2 and m3
(c) derived and fundamental units
(d) MKS and CGS systems of measurement

Answer 1

Answer:

a)An area is a two-dimensional object whereas volume is a three-dimensional object. The area is a plain figure while volume is a solid figure. The area covers the outer space and volume covers the inner capacity. The area is measured in square units and volume is measured in cubic units.

b) M3 includes M2 plus large time deposits in banks.

c)The derived physical quantities are dependent on the fundamental quantities. The units of those quantities are known as the derived units. The base unit of the measurements are known as the fundamental units. The units expressed in terms of the fundamental units are known as the derived units.

d)MKS stands for Meter, Kilogram and second. In this system of unit mass is given in Kilogram, length in meter and time in second. ... CGS system stands for Centimeter- Gram- Second system. In CGS system, length is measured in centimeters mass is measured in grams and time is in seconds.