Moving Things, People and Ideas

This chapter explains the types of force along with its effects. It also teaches us the formulas related to the concept of force and motion and the steps to measure it.

This chapter covers concepts related to friction and frictional force. It also explains the advantages and disadvantages of friction along with various factors affecting it. It discusses friction generated from water and air.

This chapter deals with the concept of pressure and how does it generate in solids, liquids and gases. We will also get to learn about atmospheric pressure and its effects along with buoyant force in detail.

This chapter discusses how various types of sounds are produced. It explains the concepts of amplitude, time period and frequency of vibrations with relation to sound. It also talks about noise pollution and ways to control it.