# CBSE Guide Class 11 Physics Part-I | NCERT Solutions of 11th Physics | Class XI Physics CBSE NCERT Solution

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·      A complete CBSE Guess and Guide with CBSE Notes and additional Board Level CBSE Physics Practice Questions and Answers on topics covering all chapters of Class XI NCERT Physics (Part 1) important not only for Board Exams, but also for NEET, AIPMT, JEE, IIT and other Engineering and Medical Entrance Exams, NTSE, KVPY plus some Admission Tests.
·      Chapter wise NCERT Solutions, NCERT Answers for CBSE Class 11, Physics (Part I).
·      A complete Class XI CBSE Physics Guide carrying CBSE Notes and additional CBSE Questions with their solutions on various topics from Class 11 NCERT Physics Part I textbook.
·      Click links given under each chapter in the table below.
Click here for CBSE NCERT Solutions of Class 11 NCERT Physics (Part 2)
CBSE Class 11 NCERT Physics Part I
(NCERT Solutions – CBSE Guide - CBSE Guess - NCERT Answers - CBSE Notes)
CHAPTER 1: PHYSICAL WORLD
What is Physics; Scope and Excitement of Physics; Physics, Technology and Society; Fundamental Forces in Nature; Nature of Physical Laws
**(Source: India Study Solution)
CHAPTER 2: UNITS AND MEASUREMENTS
The International System of Units; Measurement of Length; Measurement of Mass; Measurement of Time; Accuracy, Precision of Instruments and Errors in Measurements; Significant Figures; Dimensions of Physical Quantities; Dimensional Formula and Dimensional Equations; Dimensional Analysis and its Applications
CHAPTER 3: MOTION IN A STRAIGHT LINE
Position, Path Length and Displacement; Average Velocity and Average Speed; Instantaneous Velocity and Speed; Acceleration; Kinematic Equations for Uniformly Accelerated Motion; Relative Velocity
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CHAPTER 4: MOTION IN A PLANE
Scalars and Vectors; Multiplication of Vectors by Real Numbers; Addition and Subtraction of Vectors - Graphical Method; Resolution of Vectors; Vector Addition - Analytical Method; Motion in a Plane; Motion in a Plane with Constant Acceleration; Relative Velocity in Two Dimensions; Projectile Motion; Uniform Circular Motion
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CHAPTER 5: LAWS OF MOTION
Aristotle’s Fallacy; The Law of Inertia; Newton's First Law of Motion; Newton's Second Law of Motion; Newton's Third Law of Motion; Conservation of Momentum; Equilibrium of a Particle; Common Forces in Mechanics; Circular Motion; Solving Problems in Mechanics
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CHAPTER 6: WORK, ENERGY AND POWER
Notions of Work and Kinetic Energy: The Work-Energy Theorem; Work; Kinetic Energy; Work done by a Variable Force; The Work-Energy Theorem for a Variable Force; The Concept of Potential Energy; The Conservation of Mechanical Energy; The Potential Energy of a Spring; Various Forms Energy: The Law of Conservation of Energy; Power; Collisions
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CHAPTER 7: SYSTEM OF PARTICLES AND ROTATIONAL MOTION
Centre of Mass; Motion of Center of Mass; Linear Momentum of a System of Particles; Vector Product of Two Vectors; Angular Velocity and its Relation with Linear Velocity; Torque and Angular Momentum; Equilibrium of a Rigid Body; Moment of Inertia; Theorems of Perpendicular and Parallel Axes; Kinematics of Rotational Motion about a Fixed Axis; Dynamics of Rotational Motion about a Fixed Axis; Angular Momentum in case of Rotations about a Fixed Axis; Rolling Motion
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CHAPTER 8: GRAVITATION
Kepler's Laws; Universal Law of Gravitation; The Gravitational Constant; Acceleration due to Gravity of Earth; Acceleration due to Gravity below and above the Surface of Earth; Gravitational Potential Energy; Escape Speed; Earth Satellite; Energy of an Orbiting Satellite; Geostationary and Polar Satellites; Weightlessness
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