Is there an object that is not subject to force, and why is this sentence wrong An object that is no

According to the principle that force is universal (forget that this sentence comes from **, sorry), there is no object that is not forced, and any object produces force (objects with mass produce their own gravitational pull).

Speaking of zhuqiweiouc here, you are talking about the static mass of photons, which is a theory, and photons in practice are all not static, which is derived from the nature of photons. ）

But in matter that has not been discovered by humans, there may be objects that are not subject to force.

For example, the membrane in the eleventh dimension of string theory is just an undetermined theoretical object (I don't know whether it is correct to say that this is an object, but I really don't know what words to use to say it), and it is difficult to explain whether it is subjected to force or not with current theoretical knowledge.

No, matter is made up of atoms, and there are forces between molecules.

Objects with mass are subject to gravity.

Since it is an object that must have mass, all objects are at least subject to gravity.

No, unless the earth is not under the action of a force.

To be exact, not so far. Because gravitational force is universal. For photons, it has wave-particle bitropy, it is difficult to say that it does not belong to an object, photons are a theory proposed to explain some properties of light, people do not know much about the nature of light, so photons should not be taken into account!

does not exist. The most prevalent is gravity. There are no objects in the universe that are not subject to gravity.

It is only possible to experience an infinitely small force.

There are only objects that are balanced by force, and there are no objects that are not subject to force.

The neutrino is said to be relatively small

The static mass of the photon is zero, and I don't know if it can be forced.

No. Why did you mention it twice?

Newton's three laws of motion, whether "static" or "moving", are relative to a non-compromising reference. Even the relatively stationary objects we see are subject to the equalizing force of flatness and dryness.

For example, a box of chalk on the lectern seems to be free of force, but it is actually supported by the earth's gravity and the tabletop (as well as the static friction, which is negligible).

Therefore, the object is not subject to force when it does not exist.

How an object moves when it is not subjected to force means that the sail is erected as follows:

The moment the object is at rest at the moment when the force is not applied, then the object will remain at rest; If the object is in motion at a split second when the force is not applied, then it will maintain a uniform linear motion. <>

Movement and stillness are interdependent, interpenetrating, and mutually containing, and there is stillness in movement and movement in stillness. Motion and rest are relative to the reference object and coordinate system, many things in the world are static in motion, static in motion, belonging to the unity of absolute motion and relative rest, and the two can be transformed into each other under the conditions of formation.

Characteristics of movement and stillness.

Motion and rest penetrate each other and transform each other under certain conditions, motion and rest penetrate each other and transform each other under certain conditions, there is stillness in motion, and there is movement in stillness. The whole world as a whole is a dialectical unity of unconditional absolute motion and conditional relative stillness.

For example, "Orange Island, the boat next to the continent, the boat on the island is not good." Tianxin Pavilion, the pigeon in the pavilion, the pigeon does not fly in the pavilion", "only the big cicada noise forest is more quiet, the birdsong mountain is more secluded", "the young leave home and the boss returns, the country accent does not change the sideburns and declines", etc., all reflect the unity of movement and stillness.

Motion and stillness are the unity of opposites:

Without absolute motion, there is no such thing as relative stillness. On the other hand, without relative rest it is impossible to determine exactly what is moving and in what form it is moving, and therefore there can be no absolute motion. This relationship is also manifested in the opposing unity of non-discontinuity and discontinuity of movement.

Even the simplest mechanical movement is a unity of opposites of non-discontinuity and discontinuity.

The distance traveled by a moving object is uninterrupted, which is mathematically represented by the fact that there are no "adjacent" two points on a continuous curve, and that there are an infinite number of points between any two points, but each point in the distance is interrupted, i.e., one point and not another.

The same is true of complex motion, which does not stop at any moment, which is its non-discontinuous; However, the never-ending movement can only exist in specific special forms of movement, which is its discontinuity.

The non-discontinuity of motion is unconditional and absolute, and the discontinuity of motion is conditional and relative. There can be no realistic movement if there is only non-discontinuity without interruption, or if there is only discontinuity without non-interruption.

It is right that there is no action of force without an object. Force is the action of an object on an object, and the force cannot exist apart from the object, and vice versa, it is powerless without the object. The action of force can also arise between two objects that are not in direct contact. Classification of properties and forces.

Universal gravitation. There is a force between the universe and everything in the universe, which causes the planets to revolve around the sun, the gravitational force is magnitude: f=g*m1*m2 r2, where g is the gravitational constant.

Gravity. The Earth has a strange force that pulls objects in the air downward, and this force is called "gravity". People jump up so hard that even if they jump very high, they will quickly fall to the ground, and this auspicious wheel is because they are affected by gravity.

The magnitude of gravity is called weight. If the same object reaches the North or South Pole, its weight will also change. Gravity is a component of the gravitational force between the Earth and an object, pointing vertically downward (pointing to the center of the earth only at the north and south poles), and the other component is the centripetal force when the object rotates with the Earth.

Elasticity. The force that occurs when an object undergoes elastic deformation. For example, if you compress a spring, and the spring resists your compression, the force that resists is the elastic force.

Frictional force. When two objects in contact with each other are about to move relative to each other, the friction surface creates a force that hinders the motion. A bend in friction must hinder the relative motion of the object and generate heat.

When you throw a ball and the ball moves through the air, there is friction between the ball and the air, which we call air resistance. When the dust material from space enters the earth's atmosphere, it emits light due to violent friction with the air and violently moves with it. When the pressure is constant, the rougher the surface of the object, the stronger the friction; When the surface roughness of the object is constant, the greater the force in the buriding, the stronger the friction.

People don't slip when they walk because of friction, and if the friction is too small, people will slip. Friction is divided into sliding friction, static friction, and rolling friction. The friction force is independent of the magnitude of the area under force.

Electric field force. The interaction between the charges takes place through an electric field. As long as there is an electric charge, there is an electric field around the charge, and the basic property of the electric field is that it has a strong effect on the charge placed in it, and this force is called the electric field force.

Magnetic field force. These include the Lorentz force, which acts on a moving charge, and the ampere, which acts on an electric current, which is applied by a magnetic field.

A stressed object is an object that is subjected to force. When an object is subjected to a force, there must be another object exerting this effect on it, then the object that receives the force is the object that is subjected to the force, and the object that applies the force is the object that applies the force.

Force is one of the fundamental concepts in mechanics and is the external cause that causes an object to gain acceleration or deformation. In dynamics, it is equal to the product of the mass of the object and the acceleration. A brief history of the formation of the concept of force when pushing and pulling an object can be intuitively aware"force"vague concept.

If an object is not affected by any gravitational force, it can be considered that it is not affected by any closed force. According to Newton's first law, an object always remains at rest or in a straight line at a constant speed until an external force forces it to change this state of motion.

Whether it is stationary or uniform linear motion depends on the original motion state of the object, if it is originally stationary, it will always be at rest, and if it is originally in motion, it will always remain in a uniform linear motion state.

Whether it is a state of stationary or uniform linear motion, it is called the state of motion that does not change in physics.

Because force is what changes the state of motion of an object!

This assumption is not valid, and there is no chain in the universe to go in a straight line. It can only move forward in a whirling or wave-like manner, and even the light will bend and make trouble with time and space under the action of a huge field!

a. The object can also be at rest when it is subjected to the balance force, so A is wrong; Lap Book acres.

b. The motion state of the object has not changed, but it may deform the wheel, which may be affected by the force, so B is wrong;

c. If the direction of motion of the object changes, the state of motion has changed, and it must be affected by the force, so C is correct;

d. The force has nothing to do with the state of motion, so D is wrong;

Therefore, c