Physics

This chapter highlights the concept of force with the aid of examples and activities. It describes the different types of forces in detail and their effects. We will also come across the definition of pressure along with its unit.

In this chapter, we will explore friction and its types. It covers the factors affecting friction with the help of activities. We will come across different methods to reduce friction. A question bank is also provided here for practice.

In this chapter, we will discuss the production and propagation of sound through different mediums. We will come across the description of some musical instruments. It also highlights the structure of the ear with the help of a well-labelled diagram.

This activity-based chapter explains the phenomenon of reflection with the help of images. It elaborates on plane mirror, reflection of light by plane mirrors, etc. It also includes lab activities to illustrate this concept.

This chapter sheds light on the electric conductivity of liquids. It includes an activity that describes testing the electric conductivity of liquids. It also deals with good and bad conductors of heat in the liquid medium.

This chapter discusses two destructive natural phenomena; lightning and earthquakes. It also discusses the steps to minimise destruction caused by these phenomena.

In this chapter, we will learn about the stars and the solar system. We will learn in detail about the phases of the moon, the constellations, and the movement of the sun. Further, we will study artificial satellites.

This chapter helps us understand the significance of graphs of motion. It explains various methods of drawing graphs with the aid of examples. We will also learn how to draw the graphs of objects moving with uniform and non-uniform speed.