The Circular Motion

                                                    

So in this blog content we will learn about circular motion . So first of all we will know , what is circular motion ? 

So the answer is : the motion of a particle , which move along the circumference of a circle is called as or known as circular motion .

For an example of this , circular motion :         1) The movement of the the cyclist in a circular path , it is the best example of this circular motion .

So we will see some related example of these circular motion .

2) The motion of the planets around or circling the sun. 

3) The motion of the moon , around the planet earth .

4) Motion of the earth , around the sun .

5) The motion of the electrons , around the nucleus in an atom .

etc...

The name of circular motion or we can say that in other words that , Angular motion .

As we see the circular motion ,

So let's know about , what is actually mean of word motion ? 

Ans : The mean of the word " motion " is , if a body or object change it's position with respect to time period , than it is called as or known as motion .

So for an example : 1) Hands of clock , 2) Moving fan , etc. 

The opposite of this motion is rest .

So we let's know about , what is rest ?

Ans : The mean of concept or phenomena " rest " is , if a body does not change it's position with respect to time period , than it is called as or known as rest .

So for an example : 1) A book is place on the table , 2) A chalk is in box , etc.

So let's see some definition as given as ,

1) Linear motion : The linear motion is defined as , when a body is moving along a straight line , than it is called as or known as linear motion .

2) Inertia : The inertia is defined as , the every body has a tendency , it does not change it's position by itself , unless and until external force is act on it , is called as or known as inertia .

3) Velocity : The velocity is defined as , the rate of change of displacement with respect to time , is called as or known as velocity .

4) Speed : The speed is defined as , the rate of change of distance with respect to time , is called as or known as speed .

5) Acceleration : The acceleration is defined as , the rate of change of velocity with respect to time , is called as or known as acceleration .

6) Retardation : The retardation is defined as , the negative of acceleration , is called as or known as retardation .

7) Gravitational acceleration or Acceleration due to gravity : Gravitational acceleration or Acceleration due to gravity is defined as , there is force of attraction between any body and earth , this force of attraction cause an acceleration , which is called as or known as gravitational acceleration or acceleration due to gravity .

8) Periodic motion : The periodic motion is defined as , the motion of a body , which repeated a position by itself in equal interval of time , is called as or known as periodic motion .

So let's see the examples of this Periodic motion : 1) Hands of clock , 2) A swing in a motion , 3) The motion of fan , etc .

So here let's see types of periodic motion ,

i) Oscillatory motion : The oscillatory motion is defined as , it is the motion , in which an object repeated the same motion again an again , is called as or known as oscillatory motion .

The example of this , oscillatory motion is : 1) vibration of tuning fork

2) Hands of clock 

3) The movement of swing 

4) The movement of simple pendulum

5) The compound bar pendulum

6) The moving fan 

etc...

ii) Vibratory motion : The vibratory motion is defined as , the motion in which , the body or object moves to and fro from it's mean position , is called as or known as vibratory motion .

The examples of this vibratory motion is : 1) The pulsating ( The doctor check pulse ) 

2) The vibration of tuning fork

3) The pendulum

etc...

iii) Simple Harmonic Motion ( S.H.M ) : The simple harmonic motion is defined as , it is the periodic motion , in which force is always directed towards the mean position and it's magnitude is directly proportional to the displacement of the particle , that is f is directly proportional to x , is called as or known as simple harmonic motion .

Or

We can defined simple harmonic motion in other words that , when an object or body moving to and fro along the same path , than it called as or known as simple harmonic motion .

Where as  f = force constant

x = displacement

Examples of this simple harmonic motion is : 1) The needle of sewing machine , when you see needle of sewing machine , it is constantly move in a same path to and fro .

So we will see some terms related to this simple harmonic motion is as ,

i) Time period or periodic time ( T ) : The time period or periodic time is defined as , the time required to complete one oscillation is called as or known as time period or periodic time . It's unit be second ( S ) .

ii) Amplitude : The amplitude is defined as , the maximum displacement of a wave is called as or known as amplitude . It's unit be metre ( m ) .

iii) Frequency : The frequency is defined as , the number of vibration are completed in one seconds is called as or known as frequency . It's unit be hertz ( Hz ) .

iv) Phase : The phase is defined as , it is the starting position is called as or known as phase . It unit is radian or degree .

v) wavelength : The wavelength is defined as , the distance between two successive crest or trough is called as or known as wavelength . It unit is Angstrom .