CBSE Class 11 Physics Notes

CBSE Class 11 Physics Notes 2023-24 is a comprehensive guide for CBSE Class 11 students. The class 11 syllabus is designed to provide students with a strong foundation in the basic principles of physics, including Measurement, Vectors, Kinematics, Dynamics, Rotational Motion, Laws of Motion, and Gravitation, and to encourage them to think scientifically. Our Class 11 Physics Notes help students study smartly and get a clear picture of every concept discussed in their syllabus. The notes also contain neatly illustrated examples for quick revision of important topics from NCERT, as well as some sample questions to aid better understanding.

GeeksforGeeks has created a new approach to school learning. Physics has been among the crucial subjects of the Class 11 Science Syllabus. It helps students in improving their understanding of fascinating concepts. The following chapter-wise CBSE Class 11 Physics Notes consist of 15 chapters including Measurement, Vectors, Kinematics, Dynamics, Rotational Motion, Laws of Motion, Gravitation, and Waves which are further equipped with various concepts, everyday life examples, conceptual questions, and numerical on the same, to understand better and solve problems easily. GeeksforGeeks prepared in-depth subject theory to have a solid foundation in Class 11 Physics. The below-listed articles are designed in such a way that you can study everything according to your NCERT textbook or reference books.

Thus, we have covered all chapters, with detailed explanations of concepts, and examples, and solved problems on them.

CBSE Class 11 Physics Notes 2023-24 Chapter List

CBSE Class 11 Physics Notes Chapter 1 – Physical World

The first chapter in Class 11 Physics is the Physical World. The physical world is referred to as the complexity in nature and solving its own complexities will give us new insights into this physical world. It is referred to as the analysis of nature conducted in order to understand how the world around us performs. We have covered some crucial topics like the relationship of Physics with other sciences, Fundamental Forces of nature, and many more in the articles listed below:

• What is Physics?
• How is Physics related to Other Sciences?
• Fundamental Forces in Nature

CBSE Class 11 Physics Notes Chapter 2 – Units and Measurement

Units and Measurement is the second chapter in the Physics curriculum of Class 11, which is the most basic and crucial chapter because it works everywhere in Physics. Units and measurements which are given in the class 11 physics textbook offer basic knowledge about how the quantities are measured and the types of units that are used with them. Therefore, we have covered topics like the System of units, errors in measurements significant figures, dimensional analysis, etc are listed below:

• System of Units
• Length Measurement
• Measurement of Area, Volume and Density
• Rounding Numbers
• Dimensional Analysis
• Significant Figures
• Errors in Measurement

CBSE Class 11 Physics Notes Chapter 3 – Motion in a Straight Line

The third chapter is Motion in a straight line. This is the first chapter of kinematics in the Physics syllabus of Class 11. GeeksforGeeks Class 11 Physics Notes covers the essential terms related to kinematics like Motion in one dimension and important terms related to it, Rest and Motion, Position, distance, and placement, Difference between speed and velocity, etc along with solved conceptual and numerical problems on it.

• What is a Motion?
• Distance and Displacement
• Speed and Velocity
• What is Acceleration?
• Uniformly Accelerated Motion
• Problems with Equation of Motion
• Free Fall
• Problems Based on Free Fall
• Relative Motion
• Relative Motion in One Dimension
• Relative Motion in Two Dimension
• Stopping Distance and Reaction Time

CBSE Class 11 Physics Notes Chapter 4 – Motion in a Plane

The fourth chapter in Class 11 Physics is Motion in a Plane. Motion in a plane is the motion in 2 dimensions, for instance, projectile motion, circular motion, and so on. GeeksforGeeks Class 11 Physics Notes on Motion in a Plane cover the basics of motion in two dimensions, Scalar and vector-unit vector, parallel vectors, Addition, subtraction, and scalar multiplication of vectors, Average and instantaneous velocity, Position vector and displacement, Projectile motion and many more others that are listed below:

• Scalars and Vectors
• Vector Operations
• Product of Vectors
• Scalar Product of Two vectors
• Dot and Cross Products of Vectors
• Position and Displacement Vectors
• Average Velocity
• Motion in Two Dimension
• Relative Motion in Two Dimension
• Projectile Motion
• Uniform Circular Motion
• Centripetal Acceleration
• Motion of an object in Three dimensional Space

CBSE Class 11 Physics Notes Chapter 5 – Laws of Motion

Laws of motion is an important chapter of Class 11 Physics. In our crucial 11th Class Physics Notes, you will understand what is force and the laws of motion. The chapter covers the definition of force and basic forces, Newton’s law of motion, Linear momentum, Principle of conservation of momentum.

• Contact and Non-Contact Forces
• Inertia – Definition, Types, Sample Questions
• Newton’s First Law of Motion
• Impulse
• Solving Problems In Mechanics
• Linear Momentum of a System of Particles
• Newton’s Second Law of Motion
• Laws of Conservation of Momentum
• Equilibrium of a particle
• Newton’s Third Law of Motion
• What is Friction?
• Types of Friction
• Methods of Reducing Friction
• Factors Affecting Friction
• Motion Along a Rough-Inclined Plane
• Problems with Friction Formula
• Difference between Centripetal and Centrifugal Force
• Dynamics of Circular Motion
• Problems with Dynamics of Circular Motion
• Motion in a Vertical Circle

CBSE Class 11 Physics Notes Chapter 6 – Work, Energy and Power

Chapter 6 in the Physics curriculum of Class 11 is Work Energy and Power. This is one of the most important and basic that have many formulas and equations on Work, Power, and Energy. Work is said to be done when a force applied on the body displaces the body through a certain distance in the direction of the force. These topic-wise concepts in the Chapter Work, Energy and Power help to understand the concept of Work and dimensions of the unit of work, different forms of energies like Potential Energy and Kinetic energy, and their relationship with momentum. The most useful topics like Mass-energy relationships, Power, etc are discussed in a detailed manner in the articles listed below:

• Scalar Product of Vectors
• Work-Energy Theorem
• Introduction to Work
• Kinetic Energy
• Work Done by a Variable Force
• What is Potential Energy?
• Potential Energy of a Spring
• Problems on Potential Energy
• Forms of Energy and Law Conservation of Energy
• Difference between Work and Energy
• Power
• Types of Collisions
• Collisions in One Dimension
• Collisions in Two Dimensions
• Motion in a Vertical Circle

CBSE Class 11 Physics Notes Chapter 7 – Systems of Particles and Rotational Motion

Physics class 11 has a Seventh Chapter named Systems of Particles and Rotational Motion based on the Syllabus. GeeksforGeeks provide detailed knowledge of how the system of particles moves in our daily lives. The main focus is on the Topics of Kinematics of a system of particles, Various types of motions like translational motion, rotational motion, and rotational plus translational motion Rotational dynamics. This comprises of Newton’s laws, the moment of inertia, and theorems related to these concepts, Angular momentum, impulse, etc are discussed in the following articles as mentioned below:

• Introduction to Rigid Body
• Motion of Rigid Body
• Centre of Mass
• Centre of Mass of Different Objects
• Motion of Centre of Mass
• Linear Momentum of a System of Particles
• Product of Vectors
• Torque and Angular Momentum
• Couple
• Principle of Moments
• Centre of Gravity
• Moment of Inertia
• Kinematics of Rotational Motion
• Dynamics of Rotational Motion
• Angular Momentum in Case of Rotation About a Fixed Axis
• Rolling Motion
• Angular Velocity and its Relation with Linear Velocity

CBSE Class 11 Physics Notes Chapter 8 – Gravitation

Gravitation is the Eighth Chapter in the Class 11 Physics Syllabus. In GeeksforGeeks Physics Notes, this Chapter contains an explanation on the topics like the law of gravitation given by Newton and many examples and problems that will clarify this law to the students. Topics Like Newton’s law of gravitation, Variation in g based on the distance of the object above the earth’s surface, Satellite – How a satellite is projected to form a circular orbit around a planet, Escape velocity, Period of revolution of a satellite is discussed in depth in the articles listed as:

• Kepler’s Laws of Planetary Motion
• Newton’s Law of Gravitation
• Factors affecting Acceleration due to Gravity
• Variation in Value of Acceleration due to Gravity
• Gravitational Potential Energy
• Escape Velocity
• Binding Energy and Satellites
• Weightlessness

CBSE Class 11 Physics Notes Chapter 9 – Mechanical Properties of Solids

The Chapter Ninth is Mechanical Properties of Solids in the Class 11 Physics. GeeksforGeeks crucial Physics notes for this chapter help students to understand how even rigid bodies can be bent and stretched by applying sufficient external force. As part of this chapter, learners may also learn about Deforming force, Elasticity, Stress, Perfect elastic body, Types of stress – Longitudinal, Tangential or shearing, Normal, Hooke’s law, etc as listed below:

• Elastic Behavior of Materials
• Elasticity and Plasticity
• Stress and Strain
• Hooke’s Law
• Stress-Strain Curve
• Young’s Modulus
• Shear Modulus and Bulk Modulus 
• Poisson’s Ratio
• Elastic Potential Energy
• Stress, Strain and Elastic Potential energy

CBSE Class 11 Physics Notes Chapter 10 – Mechanical Properties of Fluids

Mechanical Properties of Fluids is the Tenth Chapter in Class 11 Physics. GeeksforGeeks Class 11 Notes of Physics Chapter 10 explain Pascal’s and Archimedes’ principles related to fluid dynamics. Here is a synopsis of what a learner may learn here in this chapter: Fluid mechanics – fluid pressure, atmospheric pressure, Pascal’s law, Archimedes Principle, Fluid dynamics – steady flow, line of flow, The velocity of Efflux, Bernoulli’s theorem, Viscosity, Stoke’s Law, etc. 

• Fluid Pressure
• Problems on Pascal’s Law
• Variation of Pressure With Depth
• Devices to Measure Atmospheric Pressure
• Hydraulic Machines
• Streamline Flow
• Bernoulli’s Principle
• Bernoulli’s Equation
• Applications and Limitations of Bernoulli’s Law
• Viscosity
• Stoke’s Law
• Pascal’s Law
• Reynolds Number
• Surface Tension

CBSE Class 11 Physics Notes Chapter 11 – Thermal Properties of Matter

In Class 11, the Eleventh Chapter in the Physics curriculum is the Thermal Properties of Matter. GeeksforGeeks’s important Class 11 Physics Notes of the matter’s thermal properties may take readers through a detailed course on heat and thermodynamics. A learner may learn about the rules and theorems like thermal properties of matter, temperature, heat, absolute temperature scale, and measurement of temperature, Thermal expansion, Heat transfer – Conduction, Convection, and Radiation, Newton’s law of cooling, etc are discussed in the articles listed below:

• Heat and Temperature
• Scales of Temperature
• Ideal Gas Equation and Absolute Temperature
• Thermal Expansion
• Heat Capacity
• Calorimetry
• Change of State of Matter
• Latent Heat
• Thermal Conduction
• Problems on Heat Conduction
• Convection
• Radiation
• Greenhouse Effect
• Newton’s Law of Cooling

CBSE Class 11 Physics Notes Chapter 12 – Thermodynamics

In GeeksforGeeks Class 11 Physics Notes of Chapter 12, students learned about the interrelation between heat and other forms of energy. It covers key concepts like Thermal equilibrium, Heat, work, and internal energy, Important thermodynamic terms like static variables, equation of state, Quasi-static process, Isothermal process, the first law of thermodynamics, and its applications along with different Engines and Cycles as listed below:

• Introduction to Thermodynamics
• Zeroth Law of Thermodynamics
• Heat, Internal Energy and Work
• First Law of Thermodynamics
• Specific Heat Capacity
• Thermodynamic State Variables and Equation of State
• Thermodynamic Processes
• Second Law of Thermodynamics
• Reversible and Irreversible Process

CBSE Class 11 Physics Notes Chapter 13 – Kinetic Theory

Chapter 13 in Class 11 Physics Notes is about Kinetic theory. The crucial Notes provided by GeeksforGeeks on kinetic theory teach students about important topics like the definition of kinetic theory, the Molecular nature of matter, Dalton’s atomic theory, Avogadro’s law, Gay Lussac’s law, Molecular structure of solids, liquids, and gases. The behaviour of gases and the perfect gas equation, Deduction of Boyle’s and Charle’s Laws, and Mean free path is also discussed in the articles listed below:

• Kinetic Theory of Matter
• Molecular Nature of Matter
• Kinetic Theory of Gases
• Behaviour of Gas
• Ideal Gas Equation and Absolute Temperature
• Specific Heat Capacity
• Mean Free Path

CBSE Class 11 Physics Notes Chapter 14 – Oscillations

Chapter 14 in the Class 11 Physics Syllabus is Oscillations. Oscillation is the process of moving back and forth regularly. The Physics Class 11 Notes introduced by GeekssforGeeks teaches readers about what oscillation is and the different types of oscillations. Students can learn the topics like oscillation and waves, Important terms related to oscillation like amplitude, period, acceleration, etc. The time of simple harmonic motion, Damped and forced oscillations are also discussed in these notes as listed below:

• Oscillatory and Periodic Motion
• Simple Harmonic Motion
• Force Law for Simple Harmonic Motion
• Uniform Circular Motion
• Displacement in SHM
• Velocity and Acceleration in SHM
• Force Law for SHM
• Energy in SHM
• Some Systems Executing SHM

CBSE Class 11 Physics Notes Chapter 15 – Waves

The last and fifteenth Chapter in Class 11 Physics is Waves. A wave is a disturbance that travels propagates and transports energy and momentum without the transport of matter. GeeksforGeeks Class 11 Physics Notes covers important topics like the concept of waves, reflection of waves, speed of waves, and Principle of superposition of waves. Our Notes also contains solved conceptual questions on each of the topic listed below:

• Introduction to Waves
• Speed of a Travelling Wave
• Reflection of Waves
• Properties of Waves
• Principle of Superposition of Waves
• Energy in Wave Motion
• Doppler Effect

Conclusion

CBSE Class 11 Physics Notes is an essential tool for Class 11 Students for their Exam preparation. With our CBSE Science Notes, Students can easily focus on physics and Important NCERT topics and retain knowledge effectively. The well-crafted notes, with neat examples, provide a complete overview of All chapters for quick revision. By using our CBSE class 11 science notes, students can achieve higher marks in exams and experience a smooth learning journey.

FAQs on CBSE Class 11 Physics Notes

Q1. How do I get a good score in science class 11?

Following are some tips and tricks that will help the students in achieving a good percentage in their Class 11 Science exam:

1. The first step toward getting good grades is to read and go through the syllabus.
2. The most important thing to remember when studying for tests is to rely on self-study. Study by yourself and seek help from teachers if you have any doubts.
3. Students must study from NCERT and reference books, which will help them understand various concepts and chapters.
4. You cannot study for more than 4 – 5 hours at a time. As a result, it is best to study for 2–3 hours at a time, with short rests in between.

Q2. Is the NCERT book enough for CBSE Class 11 Physics?

Yes, NCERT Physics Books for Class 11 cover all the concepts and topics according to the latest CBSE syllabus 2023-24.

Q3. Is it important to make notes in class 11?

Note-taking and summarizing are crucial as they highlight the essential details, making the content easier to comprehend. They help you to gain a better grasp of the concept of physics.