| | cbse syllabus for class 11 physics 2014 -2015 practical and theoryPHYSICS COURSE STRUCTURE 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 straightline: Position-time graph, speed and velocity. Elementary concepts of differentiation and intergration for describing motion.Uniform and non-
uniform motion,average speed and instantaneous velocity. Uniformlyaccelerated motion, velocity-
time and position-time graphs.
Relations for uniformly accelerated motion (graphical treatment).
Scalar and vector quantities; Position and displacement vectors, general vectorsand 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.
Motionin a plane.Cases of uniform velocity and uniform acceleration-projectile motion. Uniform circular motion.
Unit III: Laws of Motion (Periods 16)
Intuitiveconcept 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.
Dynamicsof 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 constantforce and a variable force;kinetic energy, work-energy theorem, power.
Notionof potential energy, potentialenergy 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 Particlesand Rigid Body (Periods 18)
Centreof mass of a two-particle system, momentum conservation and centre of mass motion. Centre of mass of a rigidbody; centre of mass of a uniformrod.
Momentof 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 rotationalmotions.
Moment of inertia, radius of gyration. Values of momentsof 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 planetarymotion. The universal law of gravitation. Acceleration due to gravityand its variation with altitude and depth.
Gravitational potential energy and gravitational potential. Escape velocity. Orbitalvelocity of a satellite. Geo-stationary satellites.
Unit VII: Properties of Bulk Matter (Periods28)
Elasticbehaviour, Stress-strain relationship, Hooke’s law, Young’s modulus, bulk modulus, shear modulusof rigidity, Poisson'sratio; elastic energy.
Pressuredue to a fluid column;Pascal’s law and its applications (hydraulic lift and hydraulic brakes). Effect of gravity on fluid pressure.
Viscosity, Stokes’law, terminalvelocity, Reynold’s number, streamlineand turbulent flow, critical velocity. Bernoulli’s theorem and its applications.
Surfaceenergy and surface tension, angle of contact, excess of pressure accros a curvedsurface, 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)
Thermalequilibrium and definition of temperature (zeroth law of thermodynamics). Heat, work and internalenergy. 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 KineticTheory (Periods 8)
of Gases
Equation of state of a perfectgas, work done in compressing a gas.
Kinetictheory 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; conceptof mean free path, Avogadro’s number.
Unit X: Oscillations and Waves (Periods 28)
Periodicmotion - time period,frequency, displacement as a functionof 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. Transverseand longitudinal waves, speed of wave motion. Displacement relation for a progressive wave. Principle of superposition of waves, reflection of waves, standing waves in stringsand organ pipes, fundamental mode and harmonics, Beats, Doppler effect.
Practicals (Periods28)
The record,to be submitted by the students, at the time of their annual examination, has to include
l Record of at least 15 Experiments [with a minimumof 8 from sectionA and 7 from sectionB], to be performed by the students.
l Record of at least 5 Activities[with a minimumof 2 each from sectionA and section
B], to be performed by the students.
l Report of at least two demonstration experiments, to be carried out by the teacher.
Evaluation Scheme
| Two experiments one from each section Practical record (experiment & activities) Record of Demonstration experiments Viva on experiments & activities | 8+8 Marks 6 Marks 2 Marks 6 Marks |
| | 30 Marks |
SECTION A
Experiments Total Periods : 60
(Any 8 experiments out of the following to be performed by the Students)
1. To measure diameter of a small spherical/cylindrical body using VernierCallipers.
2. To measureinternal diameter and depth of a given beaker/calorimeter using Vernier
Callipers and hence find its volume.
3. To measure diameter of a given wire using screw gauge.
4. To measure thickness of a given sheet using screw gauge.
5. To determine volume of an irregular lamina using screw gauge.
6. To determine radius of curvature of a given sphericalsurface by a spherometer.
7. To determine the mass of two different objects using a beam balance.
8. To find the weight of a givenbody using parallelogram law of vectors.
9. Using a simple pendulum,plot L-T and L-T2 graphs. Hence find the effective length of second's pendulum using appropriate graph.
10. To study the relationship betwen force of limiting friction and normal reaction and to find the co-efficient of friction between a block and a horizontal surface.
11. To find the downwardforce, along an inclined plane, acting on a rollerdue to gravitational pull of the earthand study its relationship with the angle of inclination (θ) by plottinggraph between force and sinθ.
Activities
1. To make a paper scale of given least count, e.g. 0.2cm, 0.5 cm.
2. To determine mass of a given body using a metre scale by principle of moments.
3. To plot a graph for a given set of data, with proper choice of scales and error bars.
4. To measure the force of limiting friction for rolling of a rolleron a horizontalplane.
5. To study the variation in range of a Projectile with angle of projection.
6. To study the conservation of energy of a ball rollingdown on an inclined plane (using a double inclined plane).
7. To studydissipation of energy of a simplependulum by plotting a graphbetween square of amplitude and time.
cbse syllabus for class 11 physics 2014 -2015 practical and theory
Experiments
SECTION B
(Any 7 experiments out of the following to be performed by the students)
1. To determine Young’s modulus of elasticity of the material of a given wire.
2. To find the force constant of a helicalspring by plotting a graph betweenload and extension.
3. To study the variation in volume with pressure for a sampleof air at constant temperature
1
by plotting graphs between P and V, and betweenP and .v
4. To determine the surface tension of water by capillary rise method.
5. To determine the coefficient of viscosity of a givenviscous liquid by measuring terminal velocity of a given spherical body.
6. To study the relationship between the temperature of a hot body and time by plottinga cooling curve.
7. To determine specific heat capacity of a given(i) solid (ii) liquid, by method of mixtures.
8. (i) To study the relation between frequency and length of a given wire under constant tension using sonometer.
(ii) To studythe relation betweenthe length of a givenwire and tensionfor constant frequencyusing sonometer.
9. To find the speed of sound in air at room temperature using a resonancetube by two- resonance positions.
Activities
1. To observe change of state and plot a coolingcurve for molten wax.
2. To observe and explain the effect of heating on a bi-metallic strip.
3. To note the change in level of liquid in a containeron heating and interpret the observations.
4. To study the effect of detergent on surface tension of water by observing capillary rise.
5. To study the factors affecting the rate of loss of heat of a liquid.
6. To studythe effect of load on depression of a suitablyclamped metre scaleloaded at
(i) its end (ii) in the middle.
7. To observe the decrease in presure with increase in velocity of a fluid.
SUGGESTED LIST OF DEMONSTRATION EXPERIMENTS CLASS XI
1. To demonstrate that a centripetal force is necessary for moving a body with a uniform speed along a circle, and that the magnitude of this force increases with increase in angular speed.
2. To demonstrate inter-conversion of potential and kinetic energy.
3. To demonstrate conservation of linear momentum.
4. To demonstrate conservation of angular momentum.
5. To demonstrate the effect of angle of launch on range of a projectile.
6. To demonstrate that the moment of inertia of a rod changeswith the change of position of a pair of equal weights attached to the rod.
7. To study variation of volume of a gas with its pressureat constant temperature using a doctors' syringe.
8. To demonstrate Bernoulli's theorem with simple illustrations
9. To demonstrate that heat capacities of equal masses of different materials are different.
10. To demonstrate free oscillations of different vibrating systems.
11. To demonstrate resonance with a set of coupledpendulums.
12. To demonstrate longitudinal and transverse waves.
13. To demonstrate the phenomenon of beats, due to superposition of waves producedby two sourcesof sound of slightly different frequencies
14. To demonstrate resonance using an open pipe.
15. To demonstrate the direction of torque.
16. To demonstrate the law of moments.
cbse syllabus for class 11 physics 2014 -2015 practical and theory
Recommended Textbooks.
1. Physics Part-I, Textbookfor Class XI, Published by NCERT
2 . Physics Part-II, Textbookfor Class XI, Published by NCERT
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