# CBSE Class 9 Physics Videos

## Motion

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### Motion

Define acceleration and retardation in context with uniform and non-unifor... -
### Motion

Interpret and calculate the slope of distance. Time graphs for a body in u... -
### Motion

Derive and apply the three equations of motion using velocity-time graph f... -
### Motion

Interpret and calculate the slope of velocity. Time graphs for a body in u... -
### Motion

Define speed, velocity, average speed and average velocity in context with ...

## Force and Laws of Motion

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### Force and Laws of Motion

Explain Newton's first law of motion with Galileo's experiment. Establish... -
### Force and Laws of Motion

Define momentum and explain Newton's 2nd law of motion. -
### Force and Laws of Motion

Explain and derive the law of conservation of momentum and its real time a... -
### Force and Laws of Motion

Define state of rest & motion, motion is relative, position of an object, ... -
### Force and Laws of Motion

Explain and derive the law of conservation of momentum and its real time a...

## Gravitation

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### Gravitation

Define mass and weight, weight of the object on the moon, weightlessness, ... -
### Gravitation

Define up thrust or buoyant force, density and relative density, Archimede... -
### Gravitation

Define mass and weight, weight of the object on the moon, weightlessness, ... -
### Gravitation

Define up thrust or buoyant force, density and relative density, Archimede... -
### Gravitation

Define mass and weight, weight of the object on the moon, weightlessness, ...

## Work and Energy

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### Work and Energy

Define energy and its forms: kinetic energy and potential energy, unit of ... -
### Work and Energy

Define work and calculate the work done if the direction of force and displ... -
### Work and Energy

This video explains the transformation of energy in different forms. -
### Work and Energy

Define energy and its forms: kinetic energy and potential energy, unit of ... -
### Work and Energy

Define work and calculate the work done if the direction of force and disp...

## Sound

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### Sound

Define sound as wave, turning fork, production & propagation of sound. Ele... -
### Sound

Reflection and multiple reflections of sound waves, echo & reverberation p... -
### Sound

Working of human ear & its parts: the outer, middle & the inner ear. Range... -
### Sound

Define sound as wave, turning fork, production & propagation of sound. Ele... -
### Sound

Reflection and multiple reflections of sound waves, echo & reverberation p...

## Motion

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### speed of body in uniform circular motion ...

This video decribes the speed of a body in uniform circular motion. -
### Distance and displacement_0 ...

This video describes the difference netween distance covered and displaceme... -
### distance and displacement_2 ...

This video describes the displacement covered by a body during its journey. -
### second equation of motion

This video explains the relation between velocity and displacement -
### first equation of motion ...

This video describes the relation between velocity and acceleration

## Force and Laws of Motion

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### application of law of conservation of momentum_1 ...

This video helps to solve the application based numerical of conservation o... -
### application of law of conservation of momentum_2 ...

This video describes the concept of rcoil velocity -
### application of law of conservation of momentum_3 ...

This video describes the calculation of velocity of car caused due to the c... -
### change in momentum

This video explains the change in momentum caused in the motion of a ball -
### Application of momentum

This video explains the calculation of initial momentum and momentum of bal...

## Gravitation

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### Density and relative density ...

This video describes the calculation of density and relative density of a s... -
### Force and pressure

This video describes the relation between froce and pressure applied. -
### Mass and weight

This video state the differences between mass and weight -
### Freely falling bodies- Second equation ...

This video describes the calculation of height using equation of motion dur... -
### Freely falling bodies- Third equation ...

This video describes the calculation of speed and time based on equation of...

## Work and Energy

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### Power of electric appliance ...

This video describes the concept behind the power consumption by an electri... -
### Relation between commercial and SI unit of energy ...

This video describes the relationship between the commercial and SI unit of... -
### Conservation of energy

This video describes the calculation of potential and kinetic energy when a... -
### Potential energy

This video describes the calculation of height at which the object is place... -
### Potential energy

This video describes the calculation of ratios of potential energies using ...

## Sound

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### Wavelength and frequency

This video describes the calculation of wavelength of sound waves using the... -
### Frequency and time period

This video describes the calculation of frequency and time period when the ... -
### Characteristics of sound waves ...

This video describes the various characteristics of sound -
### Pitch and frequency

This video defines the characteristic of sound called pitch and what is the... -
### Factors affecting speed of sound ...

This video describes the factors affecting the speed of sound