What Is a Force? Definition & Explanation

[Michael F. Dmitriyev]

So, we know a force is action.
If some object is subjected to some action we always (?) know a source this action. We have a force source (an object 1), the receiver of force ( an object 2) and the result. Obviously here there is no some carrier of force.
The arrow, which designate usually a vector of force, does not carry out this function.
The explanation of action through nothing (at a microlevel) by means of another nothing, can not convinces at all.
What is a carrier of force?

 

[Michael F. Dmitriyev]

There may be, the some known properties of force can lead us to the carrier of this force.
The vector of force is a direct line i.e. the carrier of force always propagates on a direct line too.
Force itself has no mass or its mass is close to zero. Hence the carrier of force cannot have mass too.
These properties are amazingly similar to the properties of light.
Is it not so?

 

[Michael F. Dmitriyev]

So, we can quite definitely say:
- a force this an action of one object at another one by means of light, which is a carrier of this action.

 

[Moe]

Force doesn't have a mass. The particle that propagates it might have a mass in some cases. And a photon isn't always the propagator of a force. For EM it is, but for the strong force there are 8 gluons IIRC, for the weak force you have 3 different bosons, and for the gravitational force, well, that thingy hasn't been discovered. Yet.

 

[Michael F. Dmitriyev]

Force doesn't have a mass. The particle that propagates it might have a mass in some cases. And a photon isn't always the propagator of a force. For EM it is, but for the strong force there are 8 gluons IIRC, for the weak force you have 3 different bosons, and for the gravitational force, well, that thingy hasn't been discovered. Yet.

Moe,
You are completely right if to accept a force as action at objects.
Let to look at force from another point of view.
Result of action of force is a change in SPACE.
This change is absolute but has appeared in such relative things as speed of an object, its temperature, pressure and all other displays of action of a force. Hence we can say:
- force is an action at space between objects.
Further. What constantly radiate and absorb particles and atoms?

 

[Moe]

I am sorry, I do not understand what you posted there. The result of a force is a change in space between two objects, is that what you are trying to say?

 

[Michael F. Dmitriyev]

I am sorry, I do not understand what you posted there. The result of a force is a change in space between two objects, is that what you are trying to say?

Yes, that so. This is a single real explanation of a free fall acceleration constancy. It does not depend of mass. It is a property of space-time itself.

 

[Moe]

But the force of attraction between two objects is very much dependent on their mass.

 

[Michael F. Dmitriyev]

But the force of attraction between two objects is very much dependent on their mass.

Moe,
It is connected to concepts “internal” and “external” object i.e. with dimensions.
Visit , please , Theory Development Forum. Mentors have moved there my thread "Dimensions".
I would like to continue discussion with you there.

 

[Michael F. Dmitriyev]

Whether can a photon move mass? Taking into account that increase of object’s temperature corresponds to increase of movement of atoms in object, it is possible to say confidently- yes. We can observe it by the example of the laser or even a microwave. The fried hen or a hole in a sheet of metal convincingly testify – a photons can move atom. What this a force is?

 

[Michael F. Dmitriyev]

If the photon directly moves atom then it is a carrier of force.
Here a question on existence of such concept as a “primary force” arise .
Any displays of forces can be reduced to an action of a primary force.
Let's assume, you are going on the car.
What a force moves it?

 

[omin]

Selected Quote: "But the question “ What is a force? ” remains open on today."

All things and their possible magnitudes can only be comprehened through comparison. Force's essential meaning is it's comparitive property.

"Life is strange," said Jeremy.
"Compared to what?" said the spider.

Force is to compare and quantify the difference between two sensed things by a chosen method. It alone cannot be said to be understood.

 

[Michael F. Dmitriyev]

Selected Quote: "But the question “ What is a force? ” remains open on today."

All things and their possible magnitudes can only be comprehened through comparison. Force's essential meaning is it's comparitive property.

"Life is strange," said Jeremy.
"Compared to what?" said the spider.

Force is to compare and quantify the difference between two sensed things by a chosen method. It alone cannot be said to be understood.

It looks like a philosophical category sooner.
But there should be a physical explanation of this philosophical category.
Comparitive property of quantified force causes various action on various bodies. It is possible to say that a force "analyzed" magnitude of mass.
This explanation is latent in the essence of concept “mass”.

Michael

 

[omin]

Qualitative and Quantitative Explanations

But there should be a physical explanation of this philosophical category.

The main difference between a philosophical explanation and a physical explanation is analogous to qualifying and quantifying.

Philosophy uses the humans senses and memory to compare qualities between physical things of the world. An explanation is given by using names to distinguish those things that have general differences. To make the explanation physical or scientific, quantitative means must be used. The measuring stick and scales are brought out.

 

[Michael F. Dmitriyev]

Does exist any motor without the photons emission?