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CBSE 11 Physics - Part 1
Explore and master the fundamentals of CBSE 11 Physics - Part 1
You've not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.Chapter 1
UNITS AND MEASUREMENT
Measurement is crucial in physics, relying on universally accepted standards known as units. Fundamental quantities are represented by base units, while all other quantities are derived from these bases, creating a comprehensive system of measurement. The International System of Units (SI) standardizes these units for global consistency, emphasizing the importance of significant figures and dimensional analysis in accurately reporting measurements.
Chapter 2
MOTION IN A STRAIGHT LINE
Motion is defined as the change in position of an object concerning time. This chapter discusses various aspects of motion, focusing on concepts like velocity, acceleration, and kinematic equations for uniformly accelerated motion. The relationships between these concepts are explored through practical examples and theoretical explanations, culminating in an understanding of relative velocity.
Chapter 3
MOTION IN A PLANE
The chapter outlines the essential concepts of motion in a plane, distinguishing between scalar and vector quantities, and showcasing how vectors can be added, subtracted, and multiplied. Key topics include motion under constant acceleration, projectile motion, and uniform circular motion, supported by a range of examples and exercises that illustrate these principles in action.
Chapter 4
LAWS OF MOTION
The chapter discusses the laws of motion, emphasizing the concepts introduced by Galileo and Newton. It explains the significance of forces in motion, defining inertia, momentum, and the three laws of motion. Through examples and illustrations, it explores how these principles apply in various real-life scenarios, including the effects of friction, circular motion, and equilibrium.
Chapter 5
WORK, ENERGY AND POWER
Key concepts explored include the definitions and interrelations of work, energy, and power, emphasizing their scalar nature and the principles governing their calculations. The chapter examines work done by both constant and variable forces, along with the work-energy theorem and its implications for kinetic and potential energy. The overall theme centers on the conservation of mechanical energy and the nature of collisions.
Chapter 6
SYSTEMS OF PARTICLES AND ROTATIONAL MOTION
The chapter delves into the dynamics of systems of particles and the mechanics of rotational motion. It discusses the concepts of center of mass, angular velocity, torque, and angular momentum with a focus on how these principles apply to rigid bodies in rotation about fixed axes. This chapter establishes crucial relations between translational and rotational dynamics, highlighting the conservation laws and analytical tools critical for understanding motion in physics.
Chapter 7
GRAVITATION
Gravitation explains the attractive force between masses, a crucial concept in understanding celestial mechanics and planetary motion. The chapter discusses the historical development of gravitational theory from Galileo to Newton, including Kepler's laws of planetary motion and the universal law of gravitation. Essential properties like gravitational potential energy, escape velocity, and orbital mechanics of satellites are also covered.