Definition Of Energy

Definition Of Energy - The following is the complete explanation about the sense of energy, a range of forms of energy, e.g. energy, and energy sources.

Definition Of Energy

Definition Of Energy

The energy we can get from the sources of energy that exists all around us. Source of energy required by the runner to Sprint comes from foods eaten.

In addition to food, there are still many other energy sources, such as solar, electric, and fuel oil. To understand more about his energy and sources of energy, check out the discussion here!

Someone needs a battery to power a flashlight. Thus, the battery is a source of energy. From this example, we can deduce that if we have the energy then we can do something. So,

Energy is the ability to do work or effort. Energy in daily life, we often refer to as power.

Energy is one of the important quantities in physics because physics is the study of energy and changes. As one of the physical quantities, energy has the unit.

The SI unit for energy is the joule (J). One joule equals to 1-newton meter (Nm). In addition to the joule, there are still other units of energy we use, in between erg and calories.

Energy owned a body if used continuously, gradually will be exhausted. Therefore, we have to provide additional energy, for example by eating regularly or replace the battery flashlight.

Earlier it was mentioned that the food, solar, electric, and fuel oil is an example of a source of energy.

Based on availability, energy resources are divided into two types: renewable sources of energy and energy resources that are not renewable.

Renewable energy resources are energy sources that never run out. Solar, wind, and water is an example of renewable energy sources.

 The source of energy that cannot be updated are sources of energy that can only be used once or may be discharged. Examples of sources of renewable energy, among others, wood, coal, oil, and natural gas.

Various Forms of Energy

Definition Of Energy

There are various kinds of energy. Food is eaten a runner has chemical energy. Battery rocks on the conversation in front have chemical energy, but the flashlight is turned on due to electrical energy.

In addition to chemical energy and electrical energy, there is still a lot of other types of energy, such as heat energy, sound energy, light energy, the energy of a spring, nuclear energy, and mechanical energy. Here we will learn that energy forms.

1. Chemical energy

Chemical energy is the energy released during a chemical reaction. Examples of chemical energy source are the food we eat.

The food we eat contains chemical elements. In our body, the chemical element contained within a food undergoes a chemical reaction. During the process of a chemical reaction, elements which react to release a number of chemical energy.

Chemical energy released is useful for our body to assist the work of the organs of the body, maintaining body temperature, and to perform daily activities.

Other examples of chemical energy are on the events of his lit Fireworks. Fireworks are made from a type of gunpowder. When the burning gunpowder, a number of gases apart at high speed.

As a result, there was a release of energy into the air. Besides food and Fireworks, chemical energy is also stored in fuels such as gasoline, diesel, and kerosene.

The chemical energy contained in the fuel of this type is very large so it can be used to move cars, airplanes, and trains.

2. Electrical energy

The flashlight will be used one can light up because there is electrical energy that flows in the lamp.

Electrical energy occurs due to the presence of electric charge that moves. The electric charge which is engaged will cause an electric current.

Electrical energy is widely used in everyday life. For example as lighting. Electrical energy can also be used to move the machinery.

The electrical energy that we use in the household comes from the power plant. Power plants using various energy sources, such as waterfalls, nuclear reactors, wind, or sun.

The electrical energy produced by power plants is very large. To produce a source of electrical energy is small, we can use a battery, battery, and generator.

3. Sound energy

When we heard the sound of thunder a very loud, sometimes the glass window of our house would vibrate. This is due to the thud as one of the forms of energy that his energy through the air.

Actually when there is thunder, the energy of the Thunder not only about glass houses but for all parts of the house. However, the energy of thunder is not large enough to vibrate the part of the house.

4. Heat energy (heat)

 Heat is a form of energy which can result in changes in temperature and changes in the form of a substance. Heat energy is usually a byproduct of changes in other forms of energy.

Heat energy can be obtained from the chemical energy, for example, fuel combustion. Heat energy can also be generated from the kinetic energy of the objects that rub together.

5. Light energy

The sun is one source of light energy. Light energy can be obtained from objects that can emit light, for example, fire and light.

Light energy is usually accompanied by other forms of energy such as heat energy (heat). Even with the use of solar cells, the energy emitted by the sun can be converted into electrical energy.

6. The energy of the spring

All the objects which elastic or pliable to have the energy of the spring. Examples of elastic between the other spring, per, bows arrows, trampolines, and catapults.

If you hit, roll, or stretch an object the elastic, once you let go of the style you gave then the object will return to its original shape.

When the object you give style than the object has potential energy. When the style you let go, the potential energy of the objects is transformed into kinetic energy.

7. Nuclear energy

Nuclear energy is the energy produced during a nuclear reaction.

Nuclear reactions occur in the nucleus of an atom that broke or merge into the core of other atoms and other particles by releasing heat energy.

Nuclear reactions occur in the sun, nuclear reactors, and nuclear bombs. The energy generated in a nuclear reaction is very large, therefore nuclear energy can be used as a power plant.

8. Mechanical energy

Why our feet hurt when the fall fruit is the mango from the top of the tree? This was due to the mango fruit that is at the top of the tree has energy. Mango fruit falling from the tree has mechanical energy.

At the time of mango fruit still, on the tree, the energy is mechanical equal to the potential energy. When mango fruit falls on the ground, the energy is mechanical equal to the kinetic energy.

Kinetic energy is the energy possessed by an object because of its movement. The kinetic energy of an object has a definition as the effort required to move an object with a certain mass from a quiescent state until it reaches a certain speed.

Potential energy is energy that affects the objects because of the position (height) of objects such that where the tendency towards infinity with the direction of the force generated from the potential energy. The SI unit for measuring the effort and energy is the Joule (symbol J).

The magnitude of the mechanical energy is the sum between the magnitude of the kinetic energy with potential energy.

Thus a full discussion about energy, understanding energy, various forms of energy and equipped with for example.

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