Question

Match the following derived quantities with their units.

• A. m/s
• B. sq. m
• C. cu. m
• D. kg per cu. m

Answer 1

Speed is defined as the ratio of distance covered to time taken. Hence, its unit is $m/s$.

Area of a figure gives the region covered by it. For a square, area is equal to the square of its side. Hence, its unit $m^2$.

Volume of a body gives the space occupied by it. For a cube, volume is equal to the cube of its edge. Hence, its unit $m^3$.

Density is defined as the ratio of mass of the body to its volume. Hence, its unit is $kg/m^3$.