circular
motion definition and gravitation force

Hello guys,
my name is

**satish yadav**and you’re welcome to my site. In this article I will discussed about the gravitational force and**circular motion class 12 important questions**if you read this article fully then you should be definitely understand the**circular motion class 12 maharashtra board**completely. If you already know the**circular motion basic**still you can read this article since it gives you lots of knowledge and advantage which helps in your**class 12 maharashtra board.**

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. F

_{cp}=ma where F_{cp }is Centripetal force
a=v

^{2}/r
v
=>Velocity of the object

r =>
radius of the circle

Therefore
force will be conclude that,

F

_{cp}=mv^{2}/r
Similarly Centrifugal
force is F

_{cf}=mv^{2}/r
But change
in the direction

F

_{cp}=- F_{cf}
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/s

^{2}
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 12

^{th}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

1.click here.

you if want to learn more definitions then subscribe us and comment us what was your opinion

## 2 Comments

11th maharastra board exam are canceled

ReplyDeleteThank you nowtechspot this article was really helps me

ReplyDeleteAnd I cleared my doubt on what is circular motion