Question

Physics
Class : 8
Activity-2
Mass of a substance is the measure of the quantity of matter contained in it.
Mass per unit volume of a substance is referred to as its density.
a) Which is the basic unit of density?
b) The unit of density is considered as a derived unit. Give reason?
c) Write two other examples for derived units?
d) The length, breadth and height of a metal block of mass 160 kg are 50 cm, 40 cm and 20 cm
respectively. Calculate the density of the metal block.
e)
Can the density of an aluminkum block and a wooden block with the same mass be the
same? Substantiate your answer.​

Answer 1

Explanation:

The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. For example, the density of water is 1 gram per cubic centimetre, and Earth's density is 5.51 grams per cubic centimetre.