Physics

This chapter highlights the distance, displacement, speed, etc. and their use in determining the state of the object. It discusses the concept of force and work done with the help of examples. Newton's first law of motion has also been included.

This chapter talks about sound, generation of sound, vibrations, oscillator, and time period of oscillation. It also describes the pitch of a sound, intensity, and different frequencies of sound with the help of various examples.

This chapter describes the scattering of light with the help of an experiment. We will learn about the formation of shadow from different sources. It also discusses the concept of eclipse and its types.

This chapter covers the properties of the magnetic field and explains the use of metal detectors. We will study about magnetism and the magnetic field with the help of an experiment. It also discusses the magnetic field that occurs around Earth.

This chapter includes the physical quantities such as mass, weight, etc. It explains some of the standard units of measurement with the help of examples. It also discusses the need for accurate measurement.

In this chapter, we will learn about the life cycle of stars. It covers a brief description of the Sun, the Moon, and stars. The celestial sphere along with the constellations has been discussed in detail with the help of pictorial representation.

In this chapter, we will understand the origin of electric charge. It deals with static electricity, charging of an object, and methods of charging. Also, it discusses the electric charge that occurs due to thunder and lightning.

In this chapter, we will learn the various mediums of transfer of heat. It briefs on the good and bad conductors of heat. Expansion and contraction due to heat is also discussed here with the help of experiments.