Law of Conservation of energy | Laws of conservation

 

First of all we will have to explain the term energy.

What is energy?

Energy is define as the ability to do work

For any kind of work you will have some energy for doing that work. Energy maybe any kind of energy that will be heat energy, mechanical energy, kinetic energy, potential energy etc.

In this article we will learn about the law of conservation of energy. After reading this article you will learn all basic terms of law of conservation of energy. So let’s start about the article:

Law of conservation of energy

It states that

Energy cannot created and also cannot destroyed, it may be transformed from one energy to another energy

Consider for an isolated system, if you take all kinds of energy in that system then the total energy of that system will remains constant.

So we can say that all kinds of energy will follows the law of conservation of energy. Then the law of conservation of energy also states that:

For Isolated system the total energy will remains constant

Now we will have to know that what isolated system is.

Isolated system is the system whom does not interact with their surroundings and will remains constant

Now we will takes the examples of the law of conservations of energy.

As we know that Energy cannot created and also cannot destroyed, it may be transformed from one energy to another energy We will start it with the basic concept that in this universe energy cannot be created and also not be destroyed it means that if we rub our hand gently then the mechanical energy that we provide to our hands will then convert into heat energy after sometime and we will feel it when we touch our hands to the other body parts of our body.

We cannot violate this law as because this is the law of nature and no scientific research will prove this wrong.

Mathematically we can describe the law of conservation of energy as:

U_t = U_i +W+Q

Where

U_t = total energy of the system

U_i = initial energy of the system

W = work done on or by the system

Q = heat that is added or embedded from the system

Some common examples of law of conservations of energy

In all physics inventions, most of the inventions rely on this principle of law of conservation of energy that energy cannot be created and also cannot be destroyed but it can transform from one energy to another. Here are some examples that will provide us the facts of this law of conservation of energy. So let’s start:

1.      Torch, in this process the chemical energy that is present in batteries will convert it into heat and electrical energy.
2.     Speakers, in this process the electrical energy that is provided by the electricity will convert it into sound energy.
3.     Generators, in this process the mechanical energy will convert into electrical energy.
4.      Fuels, in this process when it burns it converts the chemical energy into heat and light energy.