XI PHYSICS.....

Syllabus

Class XI

Class XI (Theory) 

One Paper Three Hours 

Max Marks: 70 

Class XI Weightage 

Unit I Physical World & Measurement 03 

Unit II Kinematics 10 

Unit III Laws of Motion 10 

Unit IV Work, Energy & Power 06 

Unit V Motion of System of particles & Rigid Body 06 

Unit VI Gravitation 05 

Unit VII Properties of Bulk Matter 10 

Unit VIII Thermodynamics 05 

Unit IX Behaviour of Perfect Gases & Kinetic Theory of gases 05 

Unit X Oscillations & Waves 10 

Total 70 

Unit I: Physical World and Measurement 

(Periods 10) 

Physics - scope and excitement; nature of physical laws; Physics, technology and society.
Need for measurement: Units of measurement; systems of units; SI units, fundamental and derived units. Length, mass and time measurements; accuracy and precision of measuring instruments; errors in measurement; significant figures.
Dimensions of physical quantities, dimensional analysis and its applications.

Unit II: Kinematics 

(Periods 30) 

Frame of reference, Motion in a straight line: Position-time graph, speed and velocity. 

Elementary concepts of differentiation and intergration for describing motion.Uniform and nonuniform motion, average speed and instantaneous velocity. Uniformly accelerated motion, velocity time  and position-time graphs. 

Relations for uniformly accelerated motion (graphical treatment). 

Scalar and vector quantities; Position and displacement vectors, general vectors and their 

notations; equality of vectors, multiplication of vectors by a real number; addition and subtraction 

of vectors. Relative velocity. 

Unit vector; Resolution of a vector in a plane - rectangular components. Scalar and Vector 

product of vectors.

Motion in a plane. Cases of uniform velocity and uniform acceleration-projectile motion. Uniform 

circular motion. 

Unit III: Laws of Motion 

(Periods 16) 

Intuitive concept of force. Inertia, Newton’s first law of motion; momentum and Newton’s second law of motion; impulse; Newton’s third law of motion.
Law of conservation of linear momentum and its applications.
Equilibrium of concurrent forces. Static and kinetic friction, laws of friction, rolling friction, lubrication.
Dynamics of uniform circular motion: Centripetal force, examples of circular motion (vehicle on a level circular road, vehicle on banked road).

Unit IV: Work, Energy and Power 

(Periods 16) 

Work done by a constant force and a variable force; kinetic energy, work-energy theorem, power. 

Notion of potential energy, potential energy of a spring, conservative forces: conservation of mechanical energy (kinetic and potential energies); non-conservative forces: motion in a vertical circle; elastic and inelastic collisions in one and two dimensions. 

Unit V: Motion of System of Particles

 and 

Rigid Body 

(Periods 18) 

Centre of mass of a two-particle system, momentum conservation and centre of mass motion.
Centre of mass of a rigid body; centre of mass of a uniform rod.
Moment of a force, torque, angular momentum, laws of conservation of angular momentum and
is applications.
Equilibrium of rigid bodies, rigid body rotation and equations of rotational motion, comparison
of linear and rotational motions.
Moment of inertia, radius of gyration. Values of moments of inertia, for simple geometrical objects
(no derivation). Statement of parallel and perpendicular axes theorems and their applications.

Unit VI: Gravitation (Periods 14) 

Keplar’s laws of planetary motion. The universal law of gravitation. Acceleration due to gravity and its variation with altitude and depth.
Gravitational potential energy and gravitational potential. Escape velocity. Orbital velocity of a satellite. Geo-stationary satellites.

Unit VII: Properties of Bulk Matter 

(Periods 28) 

Elastic behaviour, Stress-strain relationship, Hooke’s law, Young’s modulus, bulk modulus, shear modulus of rigidity, Poisson's ratio; elastic energy.
Pressure due to a fluid column; Pascal’s law and its applications (hydraulic lift and hydraulic brakes). Effect of gravity on fluid pressure.
Viscosity, Stokes’ law, terminal velocity, Reynold’s number, streamline and turbulent flow, critical
velocity. Bernoulli’s theorem and its applications.
Surface energy and surface tension, angle of contact, excess of pressure accros a curved surface,
application of surface tension ideas to drops, bubbles and capillary rise.
Heat, temperature, Thermal expansion; thermal expansion of solids, liquids and gases, anomalous
expansion of water; specific heat capacity; Cp, Cv - calorimetry; change of state - latent heat capacity.
Heat transfer-conduction, convection and radiation, thermal conductivity, Newton’s law of cooling,
Qualitative ideas of Blackbody radiation , Wein's displacement Law, Stefan's law Green house effect.

Unit VIII: Thermodynamics (Periods 12) 

Thermal equilibrium and definition of temperature (zeroth law of thermodynamics). Heat, work and internal energy. First law of thermodynamics. Isothermal and adiabatic processes.
Second law of thermodynamics: reversible and irreversible processes. Heat engine and refrigerator.

Unit IX: Behaviour of Perfect Gases 

and 

Kinetic Theory of Gases 

(Periods 8) 

Equation of state of a perfect gas, work done in compressing a gas.
Kinetic theory of gases - assumptions, concept of pressure. Kinetic interpretation of temperature;
rms speed of gas molecules; degrees of freedom, law of equipartition of energy (statement only)
and application to specific heat capacities of gases; concept of mean free path, Avogadro’s
number.

Unit X: Oscillations and Waves 
(Periods 28) 

Periodic motion - time period, frequency, displacement as a function of time. Periodic functions.
Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a spring–restoring
force and force constant; energy in S.H.M. Kinetic and potential energies; simple pendulum–
derivation of expression for its time period.
Free, forced and damped oscillations (qualitative ideas only), resonance.
Wave motion. Transverse and longitudinal waves, speed of wave motion. Displacement relation
for a progressive wave. Principle of superposition of waves, reflection of waves, standing waves
in strings and organ pipes, fundamental mode and harmonics, Beats, Doppler effect.