Physics

This chapter discusses the types of motion. It also explains the concepts of speed and simple pendulum in detail. Graphs related to distance, time, and speed are also explained here.

This chapter covers different types of forces and their importance in detail. It discusses with the help of diagrams the effects of the force due to which the motion of an object changes its direction.

In this chapter, we will learn in detail the concept of energy and the relationship between work and energy. We will further study potential and kinetic energy which is present in the body during rest or in motion.

This chapter details how machines help us in doing our work easily, effectively, and faster. It explains the working of simple machines such as lever, pulley, screw, and wedge. It mentions the importance of inclined planes, wheels, and axles.

This chapter discusses the concept of sound and its characteristics. It discusses the frequency of sound with relation to musical instruments. Topics such as audible and inaudible sounds and noise and noise pollution are also discussed here.

This chapter deals with the properties of light. It explains the reflection of light from plane and curved mirrors along with the uses of a spherical mirror. It further discusses the formation of shadows from reflection of light.

This chapter discusses the concept of magnets in detail. It explores the existence of magnets along with the phenomenon and significance of magnetism. It mentions some magnetic materials with the help of diagrams.

This chapter explains concepts related to the stars, the solar system, and space. It also contains illustrations to understand different planets and galaxies present in the universe.