# What is circular motion definition and gravitation force

circular motion definition and gravitation force

 circular motion performed by particle

circular motion basic:
Circular motion is a type of motion that means first you have to learn what motion is, motion is nothing but the change in the position of an object with respect to time or with respect to surrounding then we can say that object is in motion.
Hence we can conclude the circular motion as “circular motion is the motion of a particle along with the circumference of the circle” is known as circular motion”.
circular motion drawing :

Explanation:
Where A is a particle which performs the circular motion in anticlockwise direction having angle theta when it arrives from A to B.

circular motion class 12 :
After learning the circular motion we just have to learn much more deep concept in circular motion for actual understanding of circular motion such that what is uniform circular motion ,what is periodic motion, what is radius vector, what is angular displacement, what is Angular velocity, what is angular acceleration, what is periodic time…etc.
You just learnt about circular motion from this blog and these definition clears your doubt regarding motion hence we have to learn forward i.e. what uniform circular motion is.
Uniform circular motion is the motion of the particle along with the circumference of the circle with constant speed is called as uniform circular motion, generally denoted by the (UCM)
For example: The motion of earth around the sun

What is periodic motion :
Periodic motion: A motion which repeat itself in a fixed interval of time along with the same path is called as periodic motion as a particle performing UCM then it completes each revolution in equal time.
Thus UCM is a periodic motion.
These are the easy definitions of the physics fundamentals that easily clear your concept regarding basics of the physics for example what is circular motion, what is uniform circular motion, what is periodic time..
Etc. Here point to be noted if every real world object performing circular motion then there is arriving two forces acted on it which opposes to each other’s their name are centripetal force and centrifugal force.
Here I will give you the definition also to know more about on it. In Physics definitions are must to know it helps us to visualize the concept which are defined in words.
We can easily make our own definitions in physics.
What is centripetal force and centrifugal force?
Centripetal force is the force acting on a particle performing circular motion which is acting along the radius of the circle and directed toward the centre of the circle.
Where Centrifugal force is the force acting on a particle performing circular motion which is acting along the radius of the circle and directed away from the centre of the circle.
According to the Newton’s Second law of the motion,
F=ma
Where m = mass of the object
a = acceleration of the object
i.e.   Fcp=ma   where Fcp is Centripetal force
a=v2/r
v =>Velocity of the object
r => radius of the circle
Therefore force will be conclude that,
Fcp =mv2/r
Similarly Centrifugal force is Fcf=mv2/r
But change in the direction
Fcp=- Fcf

We just learnt much more concept of physics but these all stuffs are in circular motion here we will also learn about Acceleration due to gravity, Newton’s law of gravitation, satellite, critical velocity and escape velocity
The acceleration produced in the body under the effects of gravity or gravitational force is called as acceleration due to gravity which is denoted by ‘g’ having SI unit m/s2
In your exam also ask for definitions then you should have to know the correction definitions generally the question are comes in the exam as
State and explain Newton’s law of gravitation.
Every particle of the matter attracts with every other particle of the matter with some force which is directly proportional to the product of their masses and inversely proportional to the square of distance between them
circular motion class 12 important questions :
A definition that is important to 12th board
·       What is satellite
·       What is critical velocity and escape velocity
·       What is centripetal force and centrifugal force
·       What is periodic motion
·       What is circular motion
·       What is gravitational force
·       What is UCM periodic motion

What is Satellite?
If the lighter body is revolving around the heavier body due to gravitational force then the lighter body is known as satellite of heavier body.
Explain critical velocity and escape velocity.
What is meant by critical velocity:
The minimum velocity that must be given to the satellite so that it can revolve in the circular orbit around the earth is called as critical velocity of the satellite
What is meant by escape velocity:
The minimum velocity with which satellite should be projected from the surface of the earth so that it escape from the earth is called as escape velocity.
These all are the easiest definition of the physics fundamentals want to know about my previous post then
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