Moving Things, People, and Ideas

This chapter describes the effects and types of forces and how they arise in nature. Further. It explains the applications of pressure, the pressure exerted by liquids and atmospheric pressure in detail.

This chapter describes the causes and effects of friction along with its types. Further, it discusses the advantages and disadvantages of friction.

This chapter describes the formation, properties, characteristics and propagation of sound in detail. Further, it explains the causes and control of noise pollution.