Physics | Class 9
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- Introduction to Physics
- Branches of Physics
- More on Branches of Physics
- Importance of Physics in our Daily Life
- Physical Quantities
- International Systems of Base Units
- Standard of Length-Meter
- Measuring with Meter Rule and Measuring Tape
- Introduction to Vernier Calipers
- Measuring with Vernier Calipers
- problem on Measuring with Vernier Calipers
- Introduction to Screw Gauge
- Measuring with Screw Gauge
- Problem on Measuring with Screw Gauge
- Standard of Mass-Kilogram
- Mass Measuring by Physical Balance
- Electronic Balance
- Standard of Time-Second
- Measuring Time by Stopwatch
- Introduction to Prefixes
- Problem on Introduction to Prefixes
- Scientific Notation
- Problem on Scientific Notation
- Measuring Volume by Cylinder
- Volume of Cylinder
- Measuring Volume of Irregular Shaped Solid
- Introduction to Density
- Problem2 on Introduction to Density
- Introduction to Significant Figures
- Zero as Significant Figure
Chapter 1 Physical Quantities and Measurement ( 32 videos) (Practice Test)
1.1: Introduction to Physics (Practice Test)
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1.2: Measuring Instruments (Practice Test)
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1.3: Prefixes (Practice Test)
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1.4: Scientific Notation (Practice Test)
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1.5: Density and Volume (Practice Test)
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1.6: Significant Figures (Practice Test)
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- Introduction to Mechanics
- Relative Motion
- Translatory Motion
- Difference Between Distance and Displacement
- Introduction to Speed
- Problem on Introduction to Speed
- Introduction to Velocity
- Problem on Introduction to Velocity
- Uniform Velocity
- Introduction to Acceleration
- Problem on Introduction to Acceleration
- Scalars and Vectors
- Graphical Analysis of Motion
- Problem on Distance - Time Graph
- Speed - Time Graph
- Problem on Speed-Time Graph
- First Equation of Motion
- Problem on First Equation of Motion
- Second Equation of Motion
- Problem on Second Equation of Motion
- Third Equation of Motion
- Problem on Third Equation of Motion
- Motion of Freely Falling Bodies
- Problem on Motion of Freely Falling Bodies
Chapter 2 Kinematics ( 26 videos) (Practice Test)
2.1: Rest and Motion (Practice Test)
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2.2: Types of Motion (Practice Test)
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2.3: Describing Motion (Practice Test)
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2.4: Scalar and Vector (Practice Test)
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2.5: Graphical Analysis of Motion (Practice Test)
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2.6: Equations of Motion (Practice Test)
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2.7: Motion Due to Gravity (Practice Test)
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- Introduction to Force
- Introduction to Momentum
- Problem on Introduction to Momentum
- Momentum and Newton's Second Law of motion
- Law of Conservation of Momentum
- First Law of Newton
- Second Law of Newton
- Problem on Second Law of Newton
- Difference Between Mass and Weight
- Third Law of Newton
- Uniform Circular Motion
- Centripetal and Centrifugal Force
- Applications of Centripetal Force
- More on Applications of Centripetal Force
- Introduction to Friction
- Rolling Friction
- Breaking and Skidding
- Advantages and Disadvantages of Friction
- Method of Reducing Friction
Chapter 3 Dynamics ( 24 videos) (Practice Test)
3.1: Momentum (Practice Test)
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3.2: Newton's Laws of Motion (Practice Test)
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3.3: Uniform Circular Motion (Practice Test)
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3.4: Friction (Practice Test)
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- Like and Unlike Parallel Forces
- Vector Addition and Subtraction
- Trigonometric Ratios
- Resolution of Vector
- Problem on Resolution of Forces
- Principle of Moments
- Problem on Principle of Moments
- Center of Mass
- Center of Gravity
- Introduction to Couple
- Introduction to Equilibrium
- Problem 1 on Conditions for Equilibrium
- Problem 2 on Conditions for Equilibrium
- Problem 3 on Conditions for Equilibrium
- Problem 4 on Conditions for Equilibrium
- States of Equilibrium
- Center of Gravity
Chapter 4 Turning Effect of Forces ( 19 videos) (Practice Test)
4.1: Forces Acting on Bodies (Practice Test)
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4.2: Addition of Forces (Practice Test)
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4.3: Resolution of Forces (Practice Test)
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4.4: Torque or Moment of Force (Practice Test)
4.5: Principal of Moments (Practice Test)
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4.6: Centre of Mass (Practice Test)
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4.7: Couple (Practice Test)
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4.8: Equilibrium (Practice Test)
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4.9: Stability (Practice Test)
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- Introduction to Force
- Elasticity
- Hooke's Law
- Hooke's Law
- Problem on Hooke's Law
- Introduction to Pressure
- Pressure in Liquids
- Pressure in Gases
- Pascal’s Law
- Problem on Hydraulic Press
Chapter 5 Forces and Matter ( 10 videos) (Practice Test)
5.1: Forces Acting on Solids (Practice Test)
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5.2: Stretching Spring (Practice Test)
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5.3: Hooke's Law (Practice Test)
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5.4: Pressure (Practice Test)
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- Difference Between Mass and Weight
- Mass of the Earth
- Artificial Satellites
- Problem on Orbital Velocity
Chapter 6 Gravitation ( 8 videos) (Practice Test)
6.1: Newton's Law of Gravitation (Practice Test)
6.2: Weight (Practice Test)
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6.3: Mass of the Earth (Practice Test)
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6.4: Artificial Satellites (Practice Test)
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- Three States of Matter
- Kinetic Molecular Model of Matter
- More on Kinetic Molecular Model of Matter
- Brownian Movement
- Kinetic Theory of Gases
- Units of Pressure
- Shape and Volume of Gases
- Boyles law
- Experimental Verification of Boyle's Law
- Graphical Explanation of Boyle's Law
- Problem on Boyles law
Chapter 7 Properties of Matter ( 13 videos) (Practice Test)
7.1: States of Matter (Practice Test)
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7.2: Forces and Kinetic Theory (Practice Test)
7.3: Gases and Kinetic Theory (Practice Test)
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- Introduction to Work
- Problem on Work Done by a Constant Force
- Forms of Energy
- Kinetic Energy
- Potential Energy
- Problem on Kinetic Energy
- Problem on Potential Energy
- Energy from Renewable Sources
- Solar Energy
- Nuclear Energy and Electrical Energy
- Energy from Biomass
- Energy from Tides
- Energy from Renewable Sources
- More on Energy from Renewable Sources
- Energy from Non-Renewable Sources
- Introduction to Efficiency
- Problem on Introduction to Efficiency
- Introduction to Power
- Problem on Introduction to Power
Chapter 8 Energy Sources and Transfer of Energy ( 19 videos) (Practice Test)
8.1: Work (Practice Test)
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8.2: Energy Forms (Practice Test)
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8.3: Conversion of Energy (Practice Test)
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8.4: Renewable and Non-Renewable Energy Sources (Practice Test)
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8.5: Efficiency (Practice Test)
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8.6: Power (Practice Test)
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- Temperature and Heat
- Introduction to Thermometer
- Scales of Temperature
- Heat Capacity
- Problem1 on Specific Heat Capacity
- Problem2 on Specific Heat Capacity
- Introduction to Latent Heat of Fusion
- Introduction to Latent Heat of Vaporization
- Introduction to Evaporation
- More on Introduction to Evaporation
- Application of Cooling by Evaporation
- Thermal Expansion
- Expansion of Solids and Liquids
- Linear Thermal Expansion in Solids
- Volume Thermal Expansion in Solids
- Consequences of Thermal Expansion
- Application of Thermal Expansion
- Thermal Expansion of Liquids
Chapter 9 Thermal Properties of Matter ( 24 videos) (Practice Test)
9.1: Heat and Temperature (Practice Test)
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9.2: Specific Heat Capacity (Practice Test)
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9.3: Heat of Fusion and Heat of Vaporization (Practice Test)
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9.4: Evaporation Process (Practice Test)
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9.5: Thermal Expansion (Practice Test)
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