Gravitation

In the NCERT Physics book Physics Part 1 (Class 11, Chapter – “Gravitation”), you explore the force that attracts objects with mass toward each other. You learn about Newton’s law of universal gravitation, which explains how every object in the universe exerts a gravitational force on other objects.

You also study Kepler’s laws of planetary motion, which describe how planets move around the Sun. The chapter explains concepts such as gravitational field, gravitational potential energy, and acceleration due to gravity, helping you understand how gravity affects objects on Earth and in space.

You learn how satellites stay in orbit and how quantities like escape velocity and orbital speed are calculated. Through this chapter, you develop an understanding of how gravity governs the motion of celestial bodies and many physical phenomena in the universe.