How to tell how energy is transformed

It is the classification of various energies1 Light energy Internal energy: drying things will burn 2 Light energy Mechanical energy: solar sails, illuminating objects with strong light to make them expand and do work3 Light energy Electrical energy:

Solar Cells4 Light Energy Chemical Energy: Photosynthesis5 Mechanical Energy Internal Energy: Friction Heat, Drilling Wood for Fire, Compression Stroke of the Cylinder of an Internal Combustion Engine, Heating of Tires on a Bicycle, Running Can Warm the Body, Pump Pump Heating 6 Mechanical Energy Light Energy:

I can't think of a direct conversion for the time being) A hand-cranked generator is connected to a small light bulb, which is a mechanical energy converted into light energy, flint, a kind of bicycle, and there is a light on the front wheel, and when you ride it, the friction light of the light and the rim will be on. This is the conversion of mechanical energy into light energy7 Mechanical energy Electrical energy: Dam power generation, windmill power generation8 Mechanical energy Chemical energy:

In a closed container with sulfur dioxide, sulfur trioxide and oxygen, the container is compressed by external force, and the chemical equilibrium shifts in the direction of sulfur dioxide and oxygen generation. Mechanical energy is converted into chemical energy of sulfur dioxide and oxygen, this reaction is converted from mechanical energy to chemical energy, but there is a link in the middle - that is, when the gas is compressed, the internal energy of the gas increases, so as to provide energy for the reaction, so as to promote the reaction, and it should be noted that the normal situation for this reaction is a high temperature of 400-500 degrees, and there must be no vanadium oxide as a catalyst. 9 Electrical Energy Internal Energy:

Electric Furnace 10 Electrical Energy Light Energy: Electric Light 11 Electrical Energy Mechanical Energy: Starter, Motor Working 12 Electrical Energy Chemical Energy:

Storing electricity for the battery13 Chemical energy Internal energy: concentrated sulfur.

Acid dilutes release heat14 Chemical energy Light energy: magnesium burns to emit strong light, fireflies emit light15 Chemical energy Mechanical energy: Frying.

Explosives. Frying16 Chemical Energy Electrical Energy: Battery Discharge17 Internal Energy Light Energy:

The tungsten filament of the light bulb emits light when heated18 Internal energy Mechanical energy: thermal power generation, steam engine19 Internal energy Electrical energy: (I can't think of direct conversion for the time being) thermal power generation20 Internal energy Chemical energy:

For the time being, I can't think of the reaction (endothermy) of the direct conversion) of Ba(OH)2+NH4Cl

Force energy can change the state of motion of an object and is also gravitational potential energy.

Converted into kinetic energy, these two do not conflict.

Energy conversion occurs whenever there is a change in the object, such as a change in the motion state of the object, a change in temperature, and so on.

The effect of force is to deform the object or change the state of motion of the object. Take volleyball, for example.

Falling is due to gravity.

Manifestations of inertia: The inertia of an object is always expressed in two forms: "staying in the same state" or "resisting change". (1) The object is not subjected to an external force or is subjected to an external force.

At zero, inertia manifests itself as keeping the object in its original state of motion unchanged (stationary or uniform linear motion.

2) When an object is subjected to an external force, the inertia is expressed as the difficulty of changing the state of motion. The inertia is large, and it is difficult to change the motion state of the object; The inertia is small, and the motion state of the object is easy to change.

For example, if you suddenly brake sharply when you are in a car, you will lean forward, which is inertia.

Internal energy, mechanical energy, chemical energy, light energy, and solar energy.

The kinetic energy of object A becomes the mechanical energy of object B.

It should be called the transfer of energy.

A change in the form of energy.

It's called conversion. For example, objects that are in free fall.

It is the conversion of gravitational potential energy into kinetic energy.

Energy conversion occurs at the same time as the transformation of the form of energy.

The energy carrier can be changed.

Energy transfer occurs at the same time as the energy carrier changes.

The form of energy can also change.

For example, an object moves on a rough horizontal plane with a certain initial velocity.

It is the conversion of kinetic energy into internal energy.

That is, the form of energy has changed.

Energy carriers begin only with objects.

Later energy carriers had both objects and horizontal planes.

That is, the energy carrier has changed.

If you don't understand, you can ask again!

After the fuel enters the furnace, the combustion limb is burned, and the heat generated heats the water in the boiler, and the water in the boiler absorbs heat and evaporates, and finally becomes superheated steam with a certain temperature and pressure, and this high-temperature and high-pressure steam is sent to the steam turbine through the pipeline to rotate the steam turbine rotor, and the steam turbine rotor drives the generator rotor to rotate at high speed, so as to send electricity. Therefore, the production process of the thermal power plant is mainly an energy conversion process, that is, fuel chemical energy--- thermal energy, mechanical energy, and electrical energy. Eventually send the electricity out.

After the high-temperature and high-pressure steam expands and works in the turbine liquid dissipator, the pressure and temperature are reduced, and it is discharged into the condenser by the exhaust port and cooled by the cooling water, condensed into water, and the condensate is concentrated in the lower part of the condenser and is pumped to the low-pressure heater and deaerator by the condensate pump, and then the pressure is boosted by the feed water pump after deoxygenation, and then heated by the high-pressure heater and sent to the boiler, so as to cycle power generation.

Energy exists in many forms: kinetic energy, internal energy, potential energy, and so on.

When energy changes from one form to another, we say that energy has been transformed.

For example, when a ball falls from a high place, and the ball is stationary in the air, it has gravitational potential energy, and in the process of falling, the gravitational potential energy decreases and the kinetic energy increases, which we say is the conversion of gravitational potential energy into kinetic energy.

Another example is when you rub your hands, it will heat up. The mechanical energy of our hands is converted into internal energy.

There are two types of energy conversion: transformation and transfer.

As two electrons collide, the collision of an electron by a electron is at rest of the B electron. When experiencing a state where the velocity of two electrons is equal, part of the kinetic energy of an electron"Conversions"is the potential energy common to A, and goes through the final stage: when a electron is at rest and B electron flies out at the speed of a electron (i.e., exchange velocity), the energy has been removed from a electron"Transfer"to b electron.

Usually the transfer has to go through transformation, that is, transformation is the intermediate process of transfer.

1. There are many forms of energy: kinetic energy, internal energy, potential energy, etc. 2. When energy changes from one form to another, it is said that energy has been transformed.

3. For example, when the ball falls from a high place and the ball is stationary in the air, it has gravitational potential energy, and in the process of falling, the gravitational potential energy decreases and the kinetic energy increases, which is the conversion of gravitational potential energy into kinetic energy.

4. There are two types of energy conversion: transformation and transfer.

5. If two electrons collide, the collision of a electron is a resting B electron. When two electrons have equal velocities, part of the kinetic energy of electrons A is converted into potential energy common to A, and the energy has been transferred from electrons A to electrons B when electrons are at rest and electrons B fly out at the speed of electrons A (i.e., exchange velocity).

6. The usual transfer has to go through transformation, that is, transformation is the intermediate process of transfer.

(1) Different forms of energy in nature correspond to different forms of motion: the motion of objects has mechanical energy, the motion of molecules has internal energy, the motion of electric charges has electrical energy, the motion inside the nucleus has atomic energy, and so on.

2) Different forms of energy can be converted into each other: "Frictional heat generation is the conversion of mechanical energy into internal energy by overcoming friction and doing work; When the water in the kettle boils, the water vapor does work on the lid of the kettle to lift the lid up, indicating that the internal energy is converted into mechanical energy; The electric current does work through the heating wire, which converts electrical energy into internal energy, and so on." These examples illustrate the process by which different forms of energy can be converted into each other and by doing work.

3) If the energy of a certain form decreases, there must be an increase in the energy of other forms, and the amount of decrease and increase must be equal The decrease in the energy of a certain object must have an increase in the energy of other objects, and the amount of decrease and increase must be equal.

A specific expression of conservation of energy.

Conservative mechanical system: In the case of only conservative force doing work, the energy of the system is expressed as mechanical energy (kinetic energy and potential energy), and the conservation of energy is specifically expressed as the law of conservation of mechanical energy.

Thermodynamic system: energy is expressed as internal energy, heat and work, and the expression form of conservation of energy is the first law of thermodynamics.

Relativistic mechanics: In the theory of relativity, mass and energy can be transformed into each other. Taking into account the change in energy caused by the change in mass, the law of conservation of energy still holds. Historically, the law of conservation of energy in this case has also been called the law of conservation of mass and energy.

The total energy flowing into the system must be equal to the total energy flowing out of the system plus the change in the energy inside the system, and the energy can be transformed, from one form to another.

The increase in stored energy in the system is equal to the energy entering the system minus the energy leaving the system.

The Significance of the Law of Conservation of Energy The law of conservation of energy is one of the most common and important fundamental laws of nature. From physics and chemistry to geology and biology, to cosmic celestial bodies. As small as the inside of the nucleus, as long as there is energy conversion, it must obey the law of conservation of energy.

From daily life to scientific research and engineering technology, this law plays an important role. Human beings' utilization of various energies, such as coal, oil and other fuels, as well as hydropower, wind energy, nuclear energy, etc., is achieved through energy conversion. The law of conservation of energy is a powerful way for people to understand and use nature.