Selina Concise Physics Class 8 ICSE Solutions – Physical Quantities and Measurement

Selina Concise Physics Class 8 ICSE Solutions – Physical Quantities and Measurement

The Class 8 physics chapter 2- Physical Quantities and Measurement, deal with detailed explanation of the different types of physical quantities and their measurements. Solve the ICSE Selina Concise Class 8 Physics Physical Quantities and Measurement Questions and compare with the solutions given below. The Selina solutions prepared by the experts at CBSETuts covers all the chapters from the ICSE Selina textbook.

Let us look into the topics that the chapter covers:

The density of a matter is the mass per unit volume present in it. Density is the fundamental property of a matter. Every object has a different density. Densities of various materials vary based on the factor of how closely the molecules are packed. The molecules are densely packed in substances having high density. A body encounters two types of forces at being immersed in a liquid, the weight of its own and the counteracting buoyant force respectively.

The chapter also briefs about the relation between S.I. and C.G.S units.

The chapter explains the topic-Measurement of Density as well, covering the following topics in detail.

1. Density of a Regular Solid

2. Density of an Irregular Solid

3. Density of liquid

Law of Floatation: The weight of the solid floating in a fluid is equal to the weight of the fluid displaced by immersed part of the solid.

Volume of body × Density of body = Volume of displaced liquid × Density of liquid

The chapter further covers the Application of Law of floatation.