# Physics (PHY 1107) - Grade 11

Unit | Area Covered | Marks | |
---|---|---|---|

Unit 1 |
Physical World and Measurement | 10 | Read more |

Unit 2 |
Kinematics | 05 | Read more |

Unit 3 |
Laws of Motion | 05 | Read more |

Unit 4 |
Work, Energy and Power | 10 | Read more |

Unit 5 |
Motion of System of Particles and Rigid Body | 20 | Read more |

Unit 6 |
Gravitation | 10 | Read more |

Unit 7 |
Binomial Theorem | 10 | Read more |

Unit 8 |
Properties of Bulk Matter | 10 | Read more |

Unit 9 |
Behaviour of Perfect Gas and Kinetic Theory | 10 | Read more |

Unit 10 |
Oscillations and Waves | 10 | Read more |

Total Marks |
100 |

# Unit 1

**Physical World and Measurement**

- Units of measurement
- Systems of units SI units
- Fundamental and derived Units
- Basic measurements Length, mass and time measurement, accuracy and precision in measurement, errors in measurement significant figures.
- Dimensions of a Physical quantity
- Applications of dimensional analysis

# Unit 2

**Kinematics**

- Frames of Reference
- Elementary concepts of differentiation and integration
- Scalar and Vector
- Quantities position and displacement vectors
- general vectors and notation
- equality of vectors
- Vector operations:
- addition and subtraction of vectors
- unit vectors
- resolution of a vector in a plane
- rectangular components
- multiplication of a vector by a real number
- scalar product of vectors
- vector product of vectors

- Motion in a straight Line
- Displacement, speed and velocity
- Uniform and non uniform Motion
- Average and instantaneous speed and velocity
- Position-time and velocity-time graphs for a uniform motion
- Concept of acceleration, uniform acceleration, average and instantaneous acceleration
- Average and instantaneous acceleration
- uniformly accelerated motion
- Velocity-time and position-time graphs for a (one-dimensional)
- uniformly accelerated Motion
- Mathematical relations for uniformly accelerated motion
- Graphical derivation of equations of motion for a uniformly accelerated motion
- Relative velocity

- Motion in a Plane
- Motion in a plane
- Cases of uniform velocity and uniform acceleration

- Projectile Motion
- Meaning
- Mathematical relations
- Definition of the some basic terms

- Uniform Circular

# Unit 3

**Laws of Motion**

- Force and Inertia
- intuitive concept of force
- "definition‟ of force
- inertia

- Newton's laws of motion
- The first law of motion
- Concept of momentum
- Second law of motion
- Impulse
- Third law of motion

- Law of conservation of linear momentum and its application
- Equilibrium of concurrent forces
- Friction
- static and kinetic friction
- Laws of friction
- Rolling friction
- Lubrication

- state Newton‟s third law of motion.
- understand that ,in nature, forces always occur in pairs.
- appreciate that forces of action and reaction act on different bodies and hence do not cancel each other.
- cite examples of Newton‟s third law of motion in everyday life situations.
- understand that the internal forces in a body or a system of particles always add up to give a null force.
- state the law of conservation of linear momentum.

# Unit 4

**Work, Energy and Power**

- work done by a
- constant force
- variable force

- Energy
- Kinetic energy
- Work-energy theorem
- Potential energy
- Potential energy of a spring
- Different forms of energy
- Law of conservation of energy.

- Conservative and non-conservative forces
- conservative forces
- conservation of mechanical (kinetic and potential) energy
- non-conservative forces

- Motion in a vertical circle
- motion in a vertical circle
- understand the concept of "mechanical energy‟

- know about the different forms of energy available in nature.
- state the law of conservation of energy and appreciate its significance.
- state the "work-energy theorem‟ and prove if for a variable force.
- appreciate the significance of the "work-energy theorem‟.
- understand the concept of potential energy and write the general formula for its calculation.

# Unit 5

**Motion of System of Particles and Rigid Body**

- Centre of mass
- 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 uniform rod

- Motion of a Rigid Body
- translational motion
- rotational motion
- processional motion
- combination of translational and rotational motion

- angular velocity
- angular acceleration
- analogy between translational and rotational motion
- kinematical equations of motion for rotational motion.
- solve problems on calculation of centre of mass for a system of particles and for combination of regular shaped bodies.
- analyse the details of the motion of the centre of mass of a system of particles
- understand the reason for regarding the "centre of mass‟ of a system of particles, as the point where all the mass of the system may be regarded as concentrated
- prove that the total momentum, of a system of particles, is equal to the product of the total mass of the system and Equilibrium of rigid bodies
- meaning of equilibrium of a rigid body
- conditions for equilibrium of a rigid body
- principle of moments
- Centre of gravity
- meaning
- significance

# Unit 6

**Gravitation**

- Planetary motion
- Kepler‟s law of planetary motion
- Universal law of gravitation
- Acceleration due to gravity
- Concept of g
- Variation of g with altitude
- Variation of g with depth inside earth
- Gravitational Field
- Gravitational potential energy
- Gravitational potential
- Escape velocity
- Orbital velocity of a satellite
- Geo-stationary satellite

# Unit 7

**Properties of Bulk Matter**

- Elasticity
- Elastic behavior
- Stress-strain relationship
- Hooke‟s law
- Young‟s modulus
- Bulk modulus
- Shear
- Modulus of rigidity
- Poisson‟s ratio
- Elastic energy
- Pressure in a fluid
- Pressure due to a fluid column
- Pascal‟s law and its applications (hydraulic lift and hydraulic brakes)
- Effect of gravity on fluid pressure
- Viscosity
- Stoke‟s law
- Terminal velocity
- Reynold‟s number
- Streamline and turbulent flow
- Critical velocity
- Bernoulli‟s theorem and its applications
- Surface Tension
- Surface energy and surface tension
- Angle of contact
- Excess of pressure
- Application of surface tension ideas to drops, bubbles, and capillary rise
- Thermal properties of matter
- Heat and temperature
- Thermal expansion of solids, liquids and gases
- Specific heat capacity
- Calorimetry
- Change of state – latent heat capacity
- Heat transfer
- Conduction, convection and radiation
- Qualitative ideas of Blackbody radiation
- Green house effect
- Thermal conductivity
- Newton‟s law of cooling
- Wein‟s displacement law
- Stefan‟s law

# Unit 8

**Thermodynamics**

- Concept of Temperature
- Thermal Equilibrium
- Definition of temperature
- Zeroth law of thermodynam ics
- First Law of Thermodyna mics
- Heat, work and internal energy
- 1st law of thermodynam ics
- Isothermal and Adiabatic process
- Second Law of Thermod-ynamics
- Reversible and irreversible processes
- Heat engines
- Refrigerators

# Unit 9

**Behaviour of Perfect Gas and Kinetic Theory**

- Perfect gas
- Equation of state
- compressing a gas
- Kinetic theory of gases
- Assumptions
- Concept of pressure
- Kinetic energy and temperature
- RMS speed of gas molecule
- degrees of freedom
- law of equipartition of theory (statement only) and its application to the specific heat capacities of gases
- Concept of mean free path
- Avogadro‟s number

# Unit 10

**Oscillations and Waves**

- Periodic motion period, frequency, displacement as a function of time
- Periodic functions
- Simple Harmonic Motion (SHM)
- Equation of SHM Phase
- Oscillation of a spring–restoring force and force constant
- Energy in SHM
- Simple pendulum –derivation of expression for its time period
- Free, forced and damped oscillations (qualitative ideas only)
- resonance
- Wave motion
- Transverse and longitudinal wave
- Speed of wave motion
- Displacement relation for progressive wave
- Superposition of waves
- Principle of superposition of waves
- Reflection of waves
- Standing waves in strings and organ pipes
- Fundamental mode and harmonics
- Beats
- Doppler effect