KCET 2025 Important Topics for Physics - Chapter-Wise Topics, PDF, Weightage of Topics

Chapters

Weightage

Gravitation

8

Motion in a Straight Line

7

Oscillations

7

Thermodynamics

7

Mechanical Properties of Solids

4

Mechanical Properties of Fluids

4

Kinetic Theory

4

Units and Measurement

3

Physical-world

2

Magnetism and Matter

7

Alternating Current

7

Electromagnetic Induction

6

Nuclei

6

Atoms

5

Communication Systems

3

Electromagnetic Waves

2

KCET Physics Chapters

PUC I Topics

Motion in a straight line

• Introduction
• Position, displacement, and displacement, path length
• Relative velocity
• Average speed and average velocity
• Instantaneous speed and velocity 
• Kinematic equations for uniformly accelerated motion
• Acceleration

Physical World

• What is physics?
• Fundamental forces in nature

Units and Measurements

• Introduction
• The international system of units
• Measurement of mass
• Measurement of length 
• Measurement of time
• Accuracy, errors in measurement, the precision of instruments
• Significant figures 
• Dimensional equations and dimensional formulae
• Dimensions of physical quantities
• Dimensional analysis and its applications

Laws of Motion

• Introduction
• Circular motion
• Conservation of momentum
• Equilibrium of a particle
• Solving problems in mechanics
• Common forces in mechanics

Motion in a Plane

• Introduction
• Vectors and Scalars
• Resolution of vectors
• Multiplication of vectors by real numbers
• Subtraction and Addition of vectors – graphical method
• Vector addition – analytical method
• Uniform circular motion
• Motion in a plane
• Motion in a plane with constant acceleration
• Relative velocity in two dimensions
• Projectile motion

Work, Energy, and Power

• Introduction
• Kinetic energy
• Notions of work and kinetic energy
• Work
• The concept of potential energy
• Work done by a variable force
• The work-energy theorem for a variable force
• Various forms of energy
• The conservation of mechanical energy
• The potential energy of a spring
• Collisions
• Power

System of Particles and Rotational Motion

• Introduction
• Centre of mass
• The motion of the center of mass
• Equilibrium of a rigid body
• Linear momentum of a system of particles
• Vector product of two vectors
• Angular momentum 
• Angular velocity and its relation with linear velocity
• Torque and angular momentum
• Kinematics of rotational motion about a fixed axis
• Moment of inertia
• Dynamics of rotational motion about a fixed axis
• Rolling motion

Gravitation

• Introduction
• Geostationary and polar satellites
• The universal law of gravitation
• The gravitational constant
• Gravitational potential energy
• Acceleration
• The energy of an orbiting satellite
• Escape speed
• Earth satellite
• Weightlessness

Mechanical Properties of Solids

• Introduction
• Strain and Stress
• Bulk modulus
• Hooke’s law
• Young’s modulus
• Stress-strain curve
• Elastic moduli
• Applications of elastic behavior of materials
• Determination of young’s modulus of the material wire

Thermal properties matter

• Introduction
• Thermal expansion
• Measurement of temperature
• Ideal-gas equation and absolute temperature
• Black body radiation
• Specific heat capacity
• Calorimetry
• Change of state
• Newton”s law of cooling
• Greenhouse effect

Mechanical Properties Fluid

• Introduction
• Bernoulli’s principle
• Pressure
• Streamline flow
• Surface tension
• Viscosity

Kinetic Theory

• Introduction
• Behavior of gases
• Molecular nature of matter
• Specific heat capacity
• Kinetic theory of an ideal gas
• Law of equipartition of energy
• Mean free path

Thermodynamics

• Introduction
• Zeroth law of thermodynamics
• Thermal equilibrium
• Thermodynamic state variables and equation of state
• Heat, internal energy, and work
• The first law of thermodynamics
• Specific heat capacity
• The second law of thermodynamics
• Reversible and irreversible processes
• Carnot engine 
• Thermodynamic processes

Waves

• Introduction
• Displacement relation in a progressive wave
• Transverse and longitudinal waves
• Reflection of waves
• The speed of a traveling wave
• The principle of superposition of waves
• Beats

Oscillation

• Introduction
• Periodic and oscillatory motions
• Simple harmonic motion and uniform circular motion
• Simple harmonic motion
• Force law for simple harmonic motion
• Velocity and acceleration in simple harmonic motion
• Some systems executing simple harmonic Motion
• Energy in simple harmonic motion
• Damped simple harmonic motion
• Forced oscillations and resonance

KCET Physics Chapters

PUC II Topics

Current Electricity

• Introduction
• Electric Current
• Electrons and Resistivity
• Electric Currents in Conductors
• Ohm’s law 
• Electrical Energy, Power
• Limitations of Ohm’s Law
• Temperature Dependence of Resistivity
• Cells in Parallel and in Series
• Cells, Internal Resistance, emf
• Meter Bridge
• Kirchhoff’s Rules
• Wheatstone Bridge
• Potentiometer

Electric charges and fields

• Introduction
• Electric Charge
• Charging by Induction
• Conductors and Insulators
• Forces between Multiple Charges
• Basic Properties of Electric Charge
• Coulomb’s Law
• Dipole in a Uniform External Field
• Electric Field
• Electric Flux
• Electric Field Lines
• Electric Dipole
• Continuous Charge Distribution
• Gauss’s Law
• Infinite plane sheet- Field due to uniformly charged 
• Applications of Gauss’s Law

Magnetism and Matter

• Introduction
• The magnetic field lines
• The Bar Magnet
• Magnetization and magnetic intensity
• Magnetism and Gauss’s Law
• The Earth’s Magnetism

Electrostatic Potential and Capacitance 

• Introduction
• Electrostatic Potential
• Potential due to an Electric Dipole
• Potential due to a Point Charge
• Potential Energy of a System of Charges
• Potential due to a System of Charges
• Equipotential Surfaces
• Potential Energy in an External Field
• Dielectrics and Polarisation
• Electrostatics of Conductors
• Effect of Dielectric on Capacitance
• Capacitors and Capacitance
• The Parallel Plate Capacitor
• Combination of Capacitors
• Energy Stored in a Capacitor

Moving Charges and Magnetism

• Introduction
• Magnetic Force
• Motion in Combined Electric and Magnetic Fields
• Motion in a Magnetic Field
• Magnetic Field of Current circular Loop
• velocity selector
• Magnetic Field due to Current Element, Biot-Savart Law,
• The force between Two Parallel Currents, the Ampere
• Ampere’s Circuital Law
• The Solenoid and the Toroid
• Torque on Current Loop, Magnetic Dipole
• The Moving Coil Galvanometer

Ray Optics and Optical Instruments

• Introduction
• Refraction
• Total Internal Reflection
• Refraction through a Prism
• Refraction at Spherical Surfaces and by Lenses
• Optical Instruments
• Some Natural Phenomena due to Sunlight
• The rainbow

Electromagnetic Induction

• Introduction
• The Experiments of Henry and Faraday 
• Faraday’s Law of Induction
• Magnetic Flux Nil
• Energy Consideration: A Quantitative Study
• Lenz’s Law and Conservation of Energy
• Motional Electromotive Force
• Inductance
• Eddy Currents
• AC Generator

Alternating Current

• Introduction
• AC Current and Voltage by Rotating Phasors- Vectors
• AC Voltage Applied to a Resistor
• AC Voltage Applied to a Capacitor
• AC Voltage Applied to an Inductor
• AC Voltage Applied to a Series 
• LCR Circuit
• LC Oscillations
• Transformers

Electromagnetic Waves

• Introduction
• Electromagnetic Spectrum
• Electromagnetic Waves

Atoms

• Introduction Experiment
• Atomic Spectra
• Rutherford’s Nuclear Model of Atom and Alpha Particle Scattering
• Bohr’s Second Postulate of Quantisation
• Bohr Model of the Hydrogen Atom
• The Line Spectra of the Hydrogen Atom

Wave Optics 

• Introduction
• Huygens Principle
• Coherent and Incoherent Addition of Waves 
• Reflection and Refraction of Plane Waves 
• Seeing the single-slit diffraction pattern
• Interference of Light Waves and Young’s Experiment
• Diffraction
• The single slit
• The validity of ray optics

Dual Nature of radiation and matter

• Introduction
• Electron Emission
• Experimental Study of Photoelectric Effect
• Photoelectric Effect
• Einstein’s Photoelectric Equation: Energy Quantum of Radiation
• Photoelectric Effect and Wave Theory of Light
• Wave Nature of Matter
• Particle Nature of Light: The Photon

Semiconductor Electronics: Devices, Materials, and Simple Circuits

• Introduction
• Classification of Metals, Conductors, and Semiconductors
• Extrinsic Semiconductor
• Intrinsic Semiconductor
• Application of Junction Diode as a Rectifier
• PN Junction
• Semiconductor Diode
• Optoelectronic Junction Devices
• Special Purpose p-n Junction Diodes
• Digital Electronics and Logic Gates

Nuclei

• Introduction
• Size of the Nucleus
• Atomic Masses and Composition of Nucleus
• Nuclear Force
• Mass Energy and Nuclear Binding Energy 
• Nuclear Energy