Force (push or pull ) ?

If we can reveal a single word for which the very existence is existing is force.Literally Force is Something  That Systems Applies to govern Motion of bodies. To continue life on this planet nature place some  very fundamental tricks. One of them is force Yet, what science has unfolded before us that is we operate with four fundamental forces.

They are :

• Gravitational force 
• Force of electromagnetism
• Weak force 
• Nuclear force

1.) Gravitational force: The forces which is existing between two masses of any size at significant distance is called gravitational force.Sir Isaac Newton propounded that physical world. 

Applications:

•  Explaining Planetry motion, 
•  Why a body always falls toward the center of bigger mass 
•  Why water flows from from higher level to lower level and etc...
  

2.) Electromagnetism :Electromagnetism is the word which itself has encapsulated two things force of electrostatic that is charges at rest and magnetism when charges at motion and so combined effect of both is electromagnetism.Physicist believe that there is an imaginary electric field and magnetic field.When two charges are kept at rest there is an attractive and repulsive force among them depending on the nature of charge that charge when come in play with none relativistic velocity generates an magnetic field, we will discuss about them in upcoming days.our human body that is a complex organic bio molecule also have same world of electromagnetism. 

Some application of electromagnetism in body:

 • Our nerve impulses travel due to the potential difference between two part of your body and that work with electrical impulses.

• since ions are alwauys in motion it creates a magnetic field by resonating the field we can investigate the state of mind that is Magnetic resonance imaging Technologies MRI .

 3.) Nuclear forces : Physics of nucleus we have known from all the atomic models is  that atoms model exist to point with Central electrostatic force, but when we approaches to some femtometre range a new kind of force was experienced that was completely different from the force of electromagnetism and gravitational force and such was strong enough then the gravitation and electromagnetism at the range, but decreases significantly with the distance and vanishes at nanometer  this type of force is at most unknown and resources are going on .

Applications :

• Radioactivity 
• All nuclear weapons 
• And radiotherapy of human body 
  

4.) Weak forces :Weak forces are itself weak by name and are those some forces that come in play due to some different interactions of Ions or during  the nullification process of forces. Some of them are London Force vanderwall Force dipole dipole interaction, hydrogen bonding ,etc..

Application:

• Solubility
• A decision of matter out of which it decides wether it wil be solid , liquid, gases..

Etc

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Vectors

  Very often in your daily life , you come across measurment the process of measuring something i.e either it be your table cloth length or it be length of a national highway , you may be weighing apples (let say 5kg). It's all okay . Let me put you in a situation when you are driving on a national highway and someone ask you how far away the Delhi is from Agra, you may say around 200km but when they ask stepwise how will i upto there . You may say like 10 km on this highway then north again after 30 km on the way you have to take right and bitwise you will cover the distance .

      The breakdown factor of science or the most manipulating factors in science is vector i.e the quantity that require both magnitude and direction for it's complete descreption .Before starting anything let's do something of co ordinate .

 When we say 20m east it means 20 m in this direction -------------> . When two no lines that are  mutually orthogonal are intersected the point of inyersection is origin right to that is east or x -cordinate left to thet is x'-cordinate . And similarly y is upward and y' is downward .

   Now , say you are in xy-plane and you have to arrive at (3,4) how you will come across to it . Two method 

you go 3 units right then 4 units up. A unique point is defined at that point ,i.e (3,4)

You calculate distance between origin and (3,4).,you take a rotating positon vector of length 5 unit (distance is 5 unit) then rotate at a suitable unique angle 

 

 Vectors are represented by either a bold letter or an arrowhead avobe it 

Like , a vector defined from o to a is either A  OR A^

So from both methods you will come to an unique point (3,4)

Let i, j ,k be the unique unit vector along the co ordinate axis ..

So when yo come to point it can be distributed and written as  

A= x i^+yj^=3i^+4j^

Now vector can't be normally  added 

They are added by traingle law of addition this state that 

If two vectors are represented by two adjacent sides of traingle in a order then another sides of traingle which is opposite in order represent the sum .

Another thing is 

Product of vectors 

1 scalar multiplication 

That is normal multiplication by k of a vector is k times of vector 

Another is like dot and cross product 

Dot product : product of two vector is scalar 

Vector product : product of two vector is vector whose direction is oerpendicular to both tha planes of both vector

I.e all about vector

Another is ...

Some concequences work done like .

When you move perpendicular to direction of force is zero ...

I.e all about vector 

You may consider

Concept of physics (H.C VERMA)

 university physics 

Reshnik halliday walker

FOR more information and problem practice ....

Physics

Physics, the study of natural laws is basically classified into diffrent parts 

• Newtonian mechanics
• Heat and Thermodynamics 
• Electromagnetism
• Relativistic physics
• Quantum mechanics

For now we will discuss to each of them in breif .

• Newtonian mechanics :   The set of rules which are majorly propounded  by sir isac newton .He is most famous for his universal law of gravitation. (G) i.e what a revolutionary concept in physics. They describes about motion of body. But these laws are only valid for the body of size 10^-5  and velocity must be non-relativistic i.e not comparable to speed of light . 
  

• Heat and Thermodynamics :  These are the law that best describes to the effect of heat and temperature. They also talk about effect on the particles and also to random particles like kinetic theory of gases. They also talk about various thermodynamic process which has a wide application in Heat engines.   
  

• Electromagnetism: The sound theory of charges as an intrinsic properties of matterand which calmly describes behaviour of charges's static and dynamic nature.It has also encapsulated the science of magnetism,  magnetic feild and most specially the electromagenetic radiation .Also, the most famous groundbreaking equation of maxwell also knows as maxwell theory of electromagnetism.
  
  
  
  
  
  
  
  
  
  
  

• Realitivistic physics : Albert Einstein put forward a theory as special theory of realitivity. That made the scientists of that time to review the concept of rest mass,fixed length, absolute time. This part of physics majorly deals with the the behaviour of particles at very high speed .when i say high i mean damn high ,i.e velocity comparable to speed of light .
  

• Quantum mechanics :The miracle of nature are actually studied under this section also the science of sub atomic particles ,also known as wave mechanics.The part of physics was firstly independently discoverd by E.shrodinger and heisenberg.with his famous cat equation that has redefined the major part of physics.Quantum mechanics needs more to be discoverd. Needs more crucial and intense level of research work .
  
  
  
  
  
  
  
  
  
  

Thanks to all ...

Physics and physical world .

     

     Nature , the fundamental source of life on this one and only planet. Have you ever imagined that how this life's been continuing form that lon span of time ?

         Well, nature plays some very funadamental tricks in order to continue the life sometimes physically or biologically . Let me expalin, physically in the sense that if you are not available with water you can't ever imagine about your life. Biologically if at ceratin age  of adolescence if your hormones weren't being hijacked by your mind probably , you wouldn't have reproduce. If reproduction is not continued how the human race will exsist for forever.

         These tricks are when systematically studied with vivid experiments.They come to be the law of nature. The process is very sensitive . Certainly you have to draw some resonable fact from your studies and then experiments are designed,conducted,observed and a conclusion is drawn and that become the law of nature .

          

            The most basic   thing we don't know why the certain law exsist provided that it need not to be a resonable explanation of aomething else .

Like every thing is pulled down with a force of gravity, we know only when universal law of gravaitation play these things happens but we don't know why universal law of gravitation is there . And science is mostly the study of law of nature such that they can give service to mankind with its versatile application .

That's all ....

That is what nature is ....

It is so beautiful........