Is pressure the same as gravity? And relationships?

Pressure is not the same as gravity. The difference between the two:

1. Pressure is elastic force, while gravity is another force of nature;

Second, pressure is a contact force, and gravity does not contact also exists;

3. The direction of pressure must be perpendicular to the contact surface, and the gravity must be vertically downward.

The two are fundamentally different and should not be confused. It's just that under certain special conditions, the magnitude of the two may be equal, but it is not the same force, just like siblings, although they are very similar, but they are not one person. If it is on a horizontal plane, an object moving along a horizontal plane is equal in size but in opposite directions; If you do a variable speed movement on an inclined plane or on a vertical plane, the two are not the same.

1.No. 2.No.

3.Independent.

1.If you don't know if it's on a horizontal plane, you can't.

2.Ibid. 3.Ibid.

Pressure is for an action surface, not necessarily gravitational force. Didn't you write this question completely?

These are all questions you came up with on your own, right? There is no answer.

In the horizontal plane, the pressure of the object is independent of uniform and uneven velocity, and the actual situation should be considered where there is a slope.

So it's not good, it has to be analyzed on a case-by-case basis.

1.No. 2.No.

3.It does not matter.

If you don't know if it's on a horizontal plane, you can't.

The difference and connection between pressure and gravity is:

1. The difference between pressure and gravity:

1. Definition: Gravity is the force on an object due to the attraction of the earth; Pressure refers to the force acting perpendicular to the surface of an object.

2. Causes: The cause of gravity is the attraction of the earth to objects; The cause of pressure is the mutual compression of objects.

3. The direction of force: the direction of gravity is vertical downward; The direction of pressure is perpendicular to the surface of the object and directed towards the pressed object.

4. The nature of force: gravity belongs to gravity; The pressure belongs to the Nathan force of the projectile.

5. The point of action: the point of action of gravity is the center of gravity of the object; The point of action of the pressure is the surface of the pressed object.

6. Force object: The force object of gravity is the earth; The object of force exerting pressure is another object.

7. Force-bearing object: The force-bearing object of gravity is an object near the ground; The stressed object of pressure is the object of the squeezed eggplant.

2. The connection between pressure and gravity:

1. When the object is on a horizontal support surface, it is only subject to gravity and support in the vertical direction and the object is in equilibrium, $f=g$.

2. Pressure is not necessarily due to the gravitational force of an object.

3. The object can generate pressure due to the action of gravity, but the magnitude of the pressure is not necessarily equal to the gravity of the object.

In some cases, the pressure is generated by the gravity of the object, and the magnitude of the pressure can be greater than the gravitational force of the object, or it can be equal to the gravitational force of the object, or it can be less than the gravitational force of the object; In some cases, pressure has nothing to do with gravity.

1) The pressure is generated by the deformation of two objects in contact with each other by pressing each other, and the pressure belongs to elastic force according to the nature of the force; Gravity is created due to the attraction of the earth to objects near the ground.

2) The direction of the pressure does not have a fixed direction, but it is always perpendicular to the contact surface of the stressed object. Gravity has a fixed pointing and is always straight down.

3) Pressure can be generated by gravity or it may not be related to gravity. When an object is placed on a horizontal plane and there is no other external force acting on it, the pressure is equal to the magnitude of gravity. When an object is placed on an inclined plane, the pressure is less than the gravitational force.

When an object is pressed against a vertical plane, the pressure has nothing to do with gravity. When an object is lifted and pressed against the ceiling, gravity weakens the action of pressure.

4) The point of action of pressure is on the force surface of the object, the point of action of gravity is at the center of gravity of the object, and the center of gravity of the regular uniform geometry is at the center of the geometry of the object.

Relationship between pressure and gravity: Only in the case of a horizontal plane where there are no other external forces, the pressure of the object on the plane is equal to the gravitational force of the object.

Pressure is pressure, gravity is gravity, and there is no necessary internal relationship between them. The pressure on the object experienced by the plane is equal to the gravitational force of the object only if there is no other external force acting on the horizontal plane. If it is an inclined plane or there are other external forces, it is not equal.

For example, if you stand on a table, the pressure on the table is equal to your gravity. But if you stand on the ground and press the table with your hands, then the pressure on the table is not equal to your gravity.

When there is an upward acceleration, the pressure is greater than gravity, which is also called overweight, and less than: when there is a downward acceleration, it is also called weightlessness, which is equal to: there is no acceleration in the vertical direction, that is, it is stationary or uniform motion in the vertical direction?

When the area of the upper surface of a regular object is larger than the lower surface, it is flipped up and down, and the pressure remains the same, but the pressure decreases. If you slowly pull the book away from the edge of the table, but do not leave the tabletop, the pressure on the table of the book will remain the same and the pressure will increase.

When the object is vertically stationary on the horizontal plane, and there is no other external force acting on the vertical and vertical annihilation, the pressure is approximately equal to gravity, but it cannot be said that the pressure is gravity, the pressure is a kind of elastic force generated by the object squeezing each other, and gravity is the attraction of the earth to the object.

1. Not equal, pressure and gravity are two completely different forces. Gravity: The force exerted by an object due to the attraction of the earth is called gravity.

The object of gravity is the Earth. The direction of gravity is always straight down. The gravitational force exerted on an object is proportional to the mass of the object and is calculated as:

g=mg, g is the scale factor, and the magnitude is about.

2. Pressure: Pressure in physics refers to the force that occurs on the contact surface of two objects, or the vertical force of the gas on the surface of the solid and the liquid, or the vertical force of the liquid on the surface of the solid.

3. The differences between them are: (1) the generation and nature of force are different. Gravity is the force that is exerted on an object due to the attraction of the earth;Pressure is the force that arises due to two objects in contact pressing against each other.

2) The direction of the force is different. The direction of gravity is always straight down;The direction of the pressure is perpendicular to the surface of the object being forced.

4. The supporting force is the reaction force of pressure, 5. The frictional force is the force that hinders the movement of an object when it moves or has a tendency to move on the surface of another object.

6. Tension is a form of force that changes the state of motion of an object.

1. First of all, 1MPa = 10kg cm2

The "kilogram" mentioned in the project is the abbreviation of Zhonghunger, but it is actually "kilogram square centimeter".

That is, how many kilograms of pressure is often said on the project Xiaoshu refers to kg cm2, and the pressure gauge is often marked with mpa

1n/m2=1pa

1kg=1m2=10000cm2

So. 1kg/cm2=98kpa=

In engineering, people approximate 1MPa = 10kg cm22, and the ton pressure is actually "tons square centimeters".

1 ton square centimeter = 1000 kg square centimeter.

So 1mpa = tons of square centimeters.

3. So 19 megapascals = tons of square centimeters.