Question

Name the physical quantities related to the following unit:${\rm{k}}{{\rm{m}}^{\rm{2}}}$.
E. Mass
F. Volume
G. Length
H. Area

Answer 1

Hint: The units of mass, volume, length, and area are${\rm{kg}}$, litre, metre, and
${\rm{k}}{{\rm{m}}^2}$ respectively.
Complete step by step answer:
Mass: Masses are both a real body property and a calculation of its acceleration resistance
when a net force is applied. The mass of an object dictates even the force of its gravitational
attraction to several other objects. The Kilogram is the fundamental SI unit of mass.
Volume: Volume is the amount of three-dimensional space surrounded by a closed structure,
for example the area filled or formed by a material or structure. Volume is also
mathematically quantified using the SI derived unit, the cubic metre.
In SI base units: $1{\rm{ }}{{\rm{m}}^{\rm{3}}}$
SI unit: Cubic metre
Dimension: ${{\rm{L}}^{\rm{3}}}$
Other units: Litre, fluid ounce, gallon.
Length: Length is distance factor. Length is a number of dimension distances in the Universal
Scheme of Quantities. In most metric schemes a base unit is defined for length, from which
all other units are derived. The base unit for measurement in the Universal System of Units is
the metre. SI unit of length is metre (${\rm{m}}$). Common symbol for length is $l$ and its
dimension is${\rm{L}}$.
Area: Area is the quantity representing, in the plane, the degree of a two-dimensional entity
or form or planar lamina. Surface field on a three-dimensional object's two-dimensional form
is analogous. The SI unit of area is ${{\rm{m}}^2}$ and the MKS unit of the area is
${\rm{k}}{{\rm{m}}^2}$.
Hence, option D is correct.
Note:
Define the terms. Identify their dimensions according to their definition. Note down their
units from it.