Physics | Class 9

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    Chapter 1 Physical Quantities and Measurement ( 32 videos)  (Practice Test)

      1.1: Introduction to Physics (Practice Test)
      Introduction to Physics
    1. Introduction to Physics
      92679 views
      2. Branches of Physics
    2. Branches of Physics
      30872 views
      3. More on Branches of Physics
    3. More on Branches of Physics
      15130 views
      4. Importance of Physics in our Daily Life
    4. Importance of Physics in our Daily Life
      5947 views
      1.2: Measuring Instruments (Practice Test)
      Physical Quantities
    1. Physical Quantities
      56493 views
      2. International Systems of Base Units
    2. International Systems of Base Units
      29680 views
      3. Standard of Length-Meter
    3. Standard of Length-Meter
      6721 views
      4. Measuring with Meter Rule and Measuring Tape
    4. Measuring with Meter Rule and Measuring Tape
      5195 views
      5. Introduction to Vernier Calipers
    5. Introduction to Vernier Calipers
      8542 views
      6. Measuring with Vernier Calipers
    6. Measuring with Vernier Calipers
      8894 views
      7. problem on Measuring with Vernier Calipers
    7. problem on Measuring with Vernier Calipers
      4149 views
      8. Introduction to Screw Gauge
    8. Introduction to Screw Gauge
      5842 views
      9. Measuring with Screw Gauge
    9. Measuring with Screw Gauge
      15856 views
      10. Problem on Measuring with Screw Gauge
    10. Problem on Measuring with Screw Gauge
      2307 views
      11. Standard of Mass-Kilogram
    11. Standard of Mass-Kilogram
      4359 views
      12. Mass Measuring by Physical Balance
    12. Mass Measuring by Physical Balance
      5353 views
      13. Electronic Balance
    13. Electronic Balance
      2439 views
      14. Standard of Time-Second
    14. Standard of Time-Second
      5294 views
      15. Measuring Time by Stopwatch
    15. Measuring Time by Stopwatch
      3452 views
      1.3: Prefixes
      Introduction to Prefixes
    1. Introduction to Prefixes
      10268 views
      2. Problem on Introduction to Prefixes
    2. Problem on Introduction to Prefixes
      4804 views
      1.4: Scientific Notation (Practice Test)
      Scientific Notation
    1. Scientific Notation
      14752 views
      2. Problem on Scientific Notation
    2. Problem on Scientific Notation
      3140 views
      1.5: Density and Volume (Practice Test)
      Measuring Volume by Cylinder
    1. Measuring Volume by Cylinder
      3068 views
      2. Volume of Cylinder
    2. Volume of Cylinder
      807 views
      3. Measuring Volume of Irregular Shaped Solid
    3. Measuring Volume of Irregular Shaped Solid
      2312 views
      4. Introduction to Density
    4. Introduction to Density
      3922 views
      5. Problem 2 on Introduction to Density
    5. Problem 2 on Introduction to Density
      1152 views
      1.6: Significant Figures
      Introduction to Significant Figures
    1. Introduction to Significant Figures
      21944 views
      2. Problem on Introduction to Significant Figures
    2. Problem on Introduction to Significant Figures
      2408 views
      3. Problem on Rules to Find the Significant Digits in a Measurement
    3. Problem on Rules to Find the Significant Digits in a Measurement
      1516 views
      4. Zero as Significant Figure
    4. Zero as Significant Figure
      1893 views

    Chapter 2 Kinematics ( 26 videos)  (Practice Test)

      2.1: Rest and Motion
      Introduction to Mechanics
    1. Introduction to Mechanics
      9874 views
      2. Relative Motion
    2. Relative Motion
      9686 views
      2.2: Types of Motion
      Types of Motion
    1. Types of Motion
      11281 views
      2.3: Describing Motion (Practice Test)
      Difference Between Distance and Displacement
    1. Difference Between Distance and Displacement
      21168 views
      2. Introduction to Speed
    2. Introduction to Speed
      4561 views
      3. Types of Speed
    3. Types of Speed
      4. Problem on Introduction to Speed
    4. Problem on Introduction to Speed
      2531 views
      5. Introduction to Velocity
    5. Introduction to Velocity
      18502 views
      6. Problem on Introduction to Velocity
    6. Problem on Introduction to Velocity
      9471 views
      7. Uniform Velocity
    7. Uniform Velocity
      2950 views
      8. Difference Between Uniform Speed and Uniform Velocity
    8. Difference Between Uniform Speed and Uniform Velocity
      4271 views
      9. Introduction to Acceleration
    9. Introduction to Acceleration
      12317 views
      10. Problem on Introduction to Acceleration
    10. Problem on Introduction to Acceleration
      6449 views
      2.4: Scalar and Vector
      Scalars and Vectors Quantities
    1. Scalars and Vectors Quantities
      29558 views
      2.5: Graphical Analysis of Motion
      Graphical Analysis of Motion
    1. Graphical Analysis of Motion
      5191 views
      2. Problem on Distance-Time Graph
    2. Problem on Distance-Time Graph
      2818 views
      3. Speed-Time Graph
    3. Speed-Time Graph
      11825 views
      4. Problem on Speed-Time Graph
    4. Problem on Speed-Time Graph
      5822 views
      2.6: Equations of Motion
      Equations of Motion
    1. Equations of Motion
      15262 views
      2. Problem on First Equation of Motion
    2. Problem on First Equation of Motion
      3441 views
      3. Second Equation of Motion
    3. Second Equation of Motion
      7987 views
      4. Problem on Second Equation of Motion
    4. Problem on Second Equation of Motion
      2364 views
      5. Third Equation of Motion
    5. Third Equation of Motion
      8054 views
      6. Problem on Third Equation of Motion
    6. Problem on Third Equation of Motion
      2078 views
      2.7: Motion Due to Gravity
      Motion of Freely Falling Bodies
    1. Motion of Freely Falling Bodies
      6030 views
      2. Problem on Motion of Freely Falling Bodies
    2. Problem on Motion of Freely Falling Bodies
      2614 views

    Chapter 3 Dynamics ( 24 videos)  (Practice Test)

      3.1: Momentum (Practice Test)
      Introduction to Force
    1. Introduction to Force
      9713 views
      2. Introduction to Momentum
    2. Introduction to Momentum
      7422 views
      3. Problem on Introduction to Momentum
    3. Problem on Introduction to Momentum
      2543 views
      4. Momentum and Newton's Second Law of motion
    4. Momentum and Newton's Second Law of motion
      6044 views
      5. Problem on Relation Between Force and Momentum
    5. Problem on Relation Between Force and Momentum
      1809 views
      6. Impulse
    6. Impulse
      6137 views
      7. Problem on Impulse
    7. Problem on Impulse
      2490 views
      8. Law of Conservation of Momentum
    8. Law of Conservation of Momentum
      7151 views
      3.2: Newton's Laws of Motion (Practice Test)
      Newton's First Law of Motion
    1. Newton's First Law of Motion
      15598 views
      2. Newton's Second Law of Motion
    2. Newton's Second Law of Motion
      12126 views
      3. Problem on Newton's Second Law of Motion
    3. Problem on Newton's Second Law of Motion
      5721 views
      4. Difference Between Mass and Weight
    4. Difference Between Mass and Weight
      8574 views
      5. Newton's Third Law of Motion
    5. Newton's Third Law of Motion
      8817 views
      3.3: Uniform Circular Motion (Practice Test)
      Uniform Circular Motion
    1. Uniform Circular Motion
      7147 views
      2. Centripetal and Centrifugal Force
    2. Centripetal and Centrifugal Force
      7101 views
      3. Problem on Derivation of Formula for Centripetal Force and Centrifugal Force
    3. Problem on Derivation of Formula for Centripetal Force and Centrifugal Force
      1619 views
      4. Applications of Centripetal Force
    4. Applications of Centripetal Force
      5319 views
      5. More on Applications of Centripetal Force
    5. More on Applications of Centripetal Force
      2265 views
      3.4: Friction (Practice Test)
      Introduction to Friction
    1. Introduction to Friction
      7683 views
      2. Problem on Introduction to Friction
    2. Problem on Introduction to Friction
      3. Rolling Friction
    3. Rolling Friction
      6552 views
      4. Braking and Skidding
    4. Braking and Skidding
      3376 views
      5. Advantages and Disadvantages of Friction
    5. Advantages and Disadvantages of Friction
      3639 views
      6. Method of Reducing Friction
    6. Method of Reducing Friction
      3122 views

    Chapter 4 Turning Effect of Forces ( 19 videos)  (Practice Test)

      4.1: Forces Acting on Bodies
      Like and Unlike Parallel Forces
    1. Like and Unlike Parallel Forces
      10549 views
      4.2: Addition of Forces (Practice Test)
      Addition and Subtraction of Vectors
    1. Addition and Subtraction of Vectors
      20633 views
      2. Trigonometric Ratios
    2. Trigonometric Ratios
      2435 views
      4.3: Resolution of Forces
      Resolution of Vector
    1. Resolution of Vector
      3468 views
      2. Problem on Resolution of Forces
    2. Problem on Resolution of Forces
      2100 views
      4.4: Torque or Moment of Force
      Introduction to Torque or Moment of a Force
    1. Introduction to Torque or Moment of a Force
      7117 views
      2. Problem on Introduction to Torque or Moment of a Force
    2. Problem on Introduction to Torque or Moment of a Force
      2401 views
      4.5: Principal of Moments
      Principle of Moments
    1. Principle of Moments
      5078 views
      2. Problem on Principle of Moments
    2. Problem on Principle of Moments
      2420 views
      4.6: Centre of Mass
      Center of Mass
    1. Center of Mass
      4835 views
      2. Center of Gravity
    2. Center of Gravity
      5470 views
      4.7: Couple
      Introduction to Couple
    1. Introduction to Couple
      4417 views
      4.8: Equilibrium (Practice Test)
      Introduction to Equilibrium
    1. Introduction to Equilibrium
      11700 views
      2. Problem 1 on Conditions for Equilibrium
    2. Problem 1 on Conditions for Equilibrium
      6138 views
      3. Problem 2 on Conditions for Equilibrium
    3. Problem 2 on Conditions for Equilibrium
      4659 views
      4. Problem 3 on Conditions for Equilibrium
    4. Problem 3 on Conditions for Equilibrium
      4057 views
      5. Problem 4 on Conditions for Equilibrium
    5. Problem 4 on Conditions for Equilibrium
      4589 views
      6. States of Equilibrium
    6. States of Equilibrium
      4928 views
      4.9: Stability
      Center of Gravity
    1. Center of Gravity
      5470 views

    Chapter 5 Forces and Matter ( 10 videos)  (Practice Test)

      5.1: Forces Acting on Solids (Practice Test)
      Introduction to Force
    1. Introduction to Force
      9713 views
      2. Elasticity
    2. Elasticity
      4794 views
      5.2: Stretching Spring
      Hooke's Law
    1. Hooke's Law
      6732 views
      5.3: Hooke's Law
      Hooke's Law
    1. Hooke's Law
      6732 views
      2. Problem on Hooke's Law
    2. Problem on Hooke's Law
      1357 views
      5.4: Pressure (Practice Test)
      Introduction to Pressure
    1. Introduction to Pressure
      4202 views
      2. Pressure in Liquids
    2. Pressure in Liquids
      5855 views
      3. Pressure in Gases
    3. Pressure in Gases
      1466 views
      4. Pascal’s Law
    4. Pascal’s Law
      4297 views
      5. Problem on Hydraulic Press
    5. Problem on Hydraulic Press
      1622 views

    Chapter 6 Gravitation ( 8 videos)  (Practice Test)

      6.1: Newton's Law of Gravitation (Practice Test)
      Law of Gravitation
    1. Law of Gravitation
      8771 views
      2. Gravitational Constant G
    2. Gravitational Constant G
      8250 views
      3. Problem on Law of Gravitation and Newton's Third Law of Motion
    3. Problem on Law of Gravitation and Newton's Third Law of Motion
      2183 views
      4. Gravitational Field
    4. Gravitational Field
      5580 views
      6.2: Weight
      Difference Between Mass and Weight
    1. Difference Between Mass and Weight
      8574 views
      6.3: Mass of the Earth
      Calculation of Mass of the Earth
    1. Calculation of Mass of the Earth
      9491 views
      6.4: Artificial Satellites
      Artificial Satellites
    1. Artificial Satellites
      5242 views
      2. Problem on Orbital Velocity
    2. Problem on Orbital Velocity
      1513 views

    Chapter 7 Properties of Matter ( 13 videos)  (Practice Test)

      7.1: States of Matter (Practice Test)
      Three States of Matter
    1. Three States of Matter
      973 views
      2. Kinetic Molecular Model of Matter
    2. Kinetic Molecular Model of Matter
      4757 views
      3. More on Kinetic Molecular Model of Matter
    3. More on Kinetic Molecular Model of Matter
      4979 views
      4. Brownian Movement
    4. Brownian Movement
      3186 views
      7.2: Forces and Kinetic Theory (Practice Test)
      Common States of Matter (Solid, Liquid, Gas, Plasma)
    1. Common States of Matter (Solid, Liquid, Gas, Plasma)
      5774 views
      2. Interconversion of Three States of Matter
    2. Interconversion of Three States of Matter
      1901 views
      7.3: Gases and Kinetic Theory (Practice Test)
      Kinetic Theory of gases
    1. Kinetic Theory of gases
      10582 views
      2. Units of Pressure
    2. Units of Pressure
      8635 views
      3. Shape and Volume of Gases
    3. Shape and Volume of Gases
      5044 views
      4. Boyle's law
    4. Boyle's law
      5703 views
      5. Experimental Verification of Boyle's Law
    5. Experimental Verification of Boyle's Law
      9591 views
      6. Graphical Explanation of Boyle's Law
    6. Graphical Explanation of Boyle's Law
      15727 views
      7. Problem on Boyle's law
    7. Problem on Boyle's law
      1669 views

    Chapter 8 Energy Sources and Transfer of Energy ( 19 videos)  (Practice Test)

      8.1: Work
      Introduction to Work
    1. Introduction to Work
      9168 views
      2. Problem on Work Done by a Constant Force
    2. Problem on Work Done by a Constant Force
      4621 views
      8.2: Energy Forms
      Forms of Energy
    1. Forms of Energy
      5282 views
      2. Kinetic Energy
    2. Kinetic Energy
      6734 views
      3. Potential Energy
    3. Potential Energy
      7324 views
      4. Problem on Kinetic Energy
    4. Problem on Kinetic Energy
      3002 views
      5. Problem on Potential Energy
    5. Problem on Potential Energy
      1338 views
      8.3: Conversion of Energy (Practice Test)
      Energy from Renewable Sources
    1. Energy from Renewable Sources
      1733 views
      2. Solar Energy
    2. Solar Energy
      3171 views
      3. Nuclear Energy and Electrical Energy
    3. Nuclear Energy and Electrical Energy
      1219 views
      4. Energy from Biomass
    4. Energy from Biomass
      2972 views
      5. Energy from Tides
    5. Energy from Tides
      4289 views
      8.4: Renewable and Non-Renewable Energy Sources (Practice Test)
      Energy from Renewable Sources
    1. Energy from Renewable Sources
      1733 views
      2. More on Energy from Renewable Sources
    2. More on Energy from Renewable Sources
      1364 views
      3. Energy from Non-Renewable Sources
    3. Energy from Non-Renewable Sources
      3436 views
      8.5: Efficiency
      Efficiency and its Advantages
    1. Efficiency and its Advantages
      2503 views
      2. Problem on Introduction to Efficiency
    2. Problem on Introduction to Efficiency
      302 views
      8.6: Power (Practice Test)
      Power
    1. Power
      7657 views
      2. Problem on Introduction to Power
    2. Problem on Introduction to Power
      1590 views

    Chapter 9 Thermal Properties of Matter ( 24 videos)  (Practice Test)

      9.1: Heat and Temperature (Practice Test)
      Temperature and heat
    1. Temperature and heat
      15439 views
      2. Introduction to Thermometer
    2. Introduction to Thermometer
      4699 views
      3. Scales of Temperature
    3. Scales of Temperature
      1278 views
      4. Conversion of Temperature Among Different Scale
    4. Conversion of Temperature Among Different Scale
      2540 views
      9.2: Specific Heat Capacity
      Difference between Heat Capacity and Specific Heat Capacity
    1. Difference between Heat Capacity and Specific Heat Capacity
      6740 views
      2. Problem1 on Specific Heat Capacity
    2. Problem1 on Specific Heat Capacity
      1499 views
      3. Problem2 on Specific Heat Capacity
    3. Problem2 on Specific Heat Capacity
      1328 views
      9.3: Heat of Fusion and Heat of Vaporization (Practice Test)
      Introduction to Latent Heat of Fusion
    1. Introduction to Latent Heat of Fusion
      5103 views
      2. Introduction to Latent Heat of Vaporization
    2. Introduction to Latent Heat of Vaporization
      3026 views
      3. Latent Heat of Fusion of Ice by an Experiment
    3. Latent Heat of Fusion of Ice by an Experiment
      4268 views
      4. Latent Heat of Vaporization of Water by an Experiment
    4. Latent Heat of Vaporization of Water by an Experiment
      1418 views
      9.4: Evaporation Process (Practice Test)
      Introduction to Evaporation
    1. Introduction to Evaporation
      2084 views
      2. More on Introduction to Evaporation
    2. More on Introduction to Evaporation
      1282 views
      3. Application of Cooling by Evaporation
    3. Application of Cooling by Evaporation
      1041 views
      4. More on Application of Cooling by Evaporation
    4. More on Application of Cooling by Evaporation
      736 views
      9.5: Thermal Expansion (Practice Test)
      Thermal Expansion
    1. Thermal Expansion
      6616 views
      2. Expansion of Solids and Liquids
    2. Expansion of Solids and Liquids
      581 views
      3. Linear Thermal Expansion in Solids
    3. Linear Thermal Expansion in Solids
      9243 views
      4. Volume Expansion
    4. Volume Expansion
      7541 views
      5. Problem on Linear Thermal Expansion in Solids
    5. Problem on Linear Thermal Expansion in Solids
      4426 views
      6. Problem on Volume Thermal Expansion in Solids
    6. Problem on Volume Thermal Expansion in Solids
      2924 views
      7. Consequences of Thermal Expansion
    7. Consequences of Thermal Expansion
      2822 views
      8. Application of Thermal Expansion
    8. Application of Thermal Expansion
      6150 views
      9. Thermal Expansion of Liquids
    9. Thermal Expansion of Liquids
      6302 views