How can kinetic energy, potential energy, mechanical energy, etc. be classified?

Mechanical energy includes kinetic energy and potential energy, and kinetic energy includes translational kinetic energy and rotational kinetic energy, respectively: ek=(1 2)*m*v 2, ek=(1 2)*j*w 2

Potential energy: elastic potential energy: e=(1 2)*k*x 2, gravitational potential energy: e=mgh, electric potential energy: e=qu

The internal energy is intermolecular, by the molecular internal energy and the molecular potential energy, the microscopic expression of the average kinetic energy of the molecule is: ek = (3 2) * k * t = (1 2) * m * v 2, the molecular potential energy is still determined by the position of the molecule, and the potential energy between different molecules is not the same, so it only needs to be qualitatively understood: when the intermolecular distance r0 is balanced, it is defined as the zero point of potential energy, when rr0:

The intermolecular potential energy increases with distance.

In short, no matter what kind of energy he can, he has a rule, that is, the amount of positive function done by the combined external force decreases, and the energy increases on the contrary.

Mechanical energy includes kinetic energy and potential energy.

Kinetic energy is the energy possessed due to the motion of an object, with the focus on motion.

Potential energy includes elastic potential energy and gravitational potential energy.

Elastic potential energy is the energy possessed due to the deformation of an object, with a focus on elastic deformation.

Gravitational potential energy is the energy possessed by an object due to being lifted, with the focus on lifting.

Internal energy includes molecular kinetic energy and molecular potential energy (note that the word molecule cannot be omitted), and molecular kinetic energy is the energy that molecular motion has.

Molecular potential energy mainly refers to the gravitational and repulsive forces between molecules.

Judging from the problem, the landlord is at the junior high school level, and so am I, I'll try.

1.Kinetic energy. Kinetic energy is the energy produced due to the motion of an object, which is related to velocity and mass, both are directly proportional. Moreover, the factor influencing speed is the most, the example is the old cow and the bullet, the bullet has a fast speed and a large kinetic energy.

2.Potential energy. Potential energy is possessed due to the fact that the object is lifted high, and the energy that is straight downwards is related to the mass of the object and the height it is lifted. Note that if it is on the ground, there is no potential energy.

3.Mechanical energy. Mechanical energy is a general term for kinetic energy and potential energy.

Hehe, over. Happy New Year to the landlord!!

Mechanical energy includes kinetic energy and potential energy.

Potential energy includes elastic potential energy vs. gravitational potential energy ok

Mechanical energy. Including kinetic energy and potential energy (w machine e potential + e motion) kinetic energy: The energy that an object has due to motion is called kinetic energy.

The mass and velocity of an object determine the magnitude of its kinetic energy, and the greater the mass and velocity of the moving object, the greater the kinetic energy. And all moving objects have kinetic energy.

Potential energy: Potential energy is further divided into gravitational potential energy.

and elastic potential energy.

The potential energy possessed by an object is called gravitational potential energy, gravity potential energy refers to the energy that an object has due to being lifted, and all objects that are lifted up are able to do work and have gravitational potential energy. The greater the mass of the object and the higher it is lifted, the greater its gravitational potential energy.

Elastic potential energy refers to the energy possessed by an object due to elastic deformation, and all objects that undergo elastic deformation are able to do work and have elastic potential energy.

For an object that undergoes elastic deformation, the greater the elastic deformation, the greater the elastic deformation it has.

Be. Potential energy is divided into gravitational potential energy and elastic potential energy. We refer to kinetic energy, gravitational potential energy, and elastic potential energy collectively as mechanical energy. It is mass and velocity that determine kinetic energy; It is the mass and height that determine the gravitational potential energy; The elastic potential energy is determined by the stiffness coefficient and the deformation.

Mechanical energy is simply the sum of kinetic energy and potential energy. Mechanical energy is a physical quantity that represents the state and height of an object. There is a conversion between the kinetic energy and the potential energy of an object.

In the process where only kinetic energy and potential energy are converted into each other, the total amount of mechanical energy remains unchanged, that is, mechanical energy is conserved.

The kinetic energy is completely converted into potential energy, and the pre-split is the conservation of mechanical energy, because mechanical energy = potential energy + kinetic energy, if the mechanical energy remains unchanged, then the potential energy increases only if the kinetic energy decreases, and the equation can be established, in short, it is the conservation of mechanical energy.

An example of conservation of mechanical energy is that the kinetic energy increases as much as the object falls freely and the gravitational potential energy decreases.

Example of non-conservation of mechanical energy: If an object slides down from a rough inclined plane, because the frictional force has done work, and the mechanical energy of the object is not conserved, then the decrease in its gravitational potential energy must not be equal to the increase in its kinetic energy! The amount of potential energy reduced by gravity is partly converted into kinetic energy and partly into thermal energy (internal energy) that overcomes friction and does work.

When mechanical energy is conserved, that is, when it is not subject to any external force other than gravity or elastic force, the amount of change in kinetic energy = the amount of change in potential energy.

Whether the kinetic energy changes or not depends on whether the external force does work.

When mechanical energy is conserved, potential energy is converted into kinetic energy, or kinetic energy is converted into potential energy.

Mechanical energy is conserved when there is no conversion between mechanical energy and other energies.

The object overcomes friction to do work, mechanical energy is converted into internal energy, mechanical energy is not conserved, for example, during the rolling process, the rolling wand constantly overcomes the air resistance and friction with the rope, and the mechanical energy is constantly decreasing, so every time it rises to the highest point, it is lower than the last time.

In the junior high school stage, if there is no friction and air resistance, the mechanical energy remains basically unchanged during the conversion of mechanical energy.

In a system of motion, there are forces other than gravity and elasticity that do the work, and the mechanical energy is not conserved. Forces other than these two do positive (negative) work, and mechanical energy increases (decreases). The resultant force does positive (negative) work, and the kinetic energy increases (decreases).

Mechanical energy = potential energy + kinetic energy, potential energy has gravitational potential energy, elastic potential energy, etc.

Kinetic energy is the energy that an object has due to motion, and its magnitude is defined as one-half of the square product of the mass of the object and the velocity. Mechanical energy is the sum of kinetic energy and potential energy, and here potential energy is divided into gravitational potential energy and elastic potential energy. Mechanical energy includes kinetic energy.

In physics, kinetic energy and potential energy are collectively referred to as mechanical energy. Mechanical energy refers to the fact that the object only undergoes the mutual conversion of kinetic energy and potential energy without considering friction and medium resistance, and the total amount of mechanical energy remains unchanged, that is, the increase or difference decrease of kinetic energy is equal to the decrease or increase of potential energy, that is, the law of conservation of mechanical energy.

The energy that an object has due to its motion is known as the kinetic energy of the object. Its size is defined as one-half of the product of the mass of the object and the square of the velocity. Kinetic energy is a scalar quantity; Kinetic energy is instantaneous, at a certain moment, the object has a certain velocity, and also has a certain kinetic energy, and kinetic energy is a state quantity; Kinetic energy is relative, for different reference frames, the velocity of the object has different instantaneous values, which also has different kinetic energy, generally with the ground as the reference frame to study the motion of the object.