Explain energy transformation with example
Answers
Explanation:
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The conservation of energy principle states that energy can neither be destroyed nor created. Instead, energy just transforms from one form into another. So what exactly is energy transformation? Well, as you might guess, energy transformation is defined as the process of changing energy from one form to another.
There are so many different kinds of energy that can transform from one form to another. There is energy from chemical reactions called chemical energy, energy from thermal processes called heat energy, and energy from charged particles called electrical energy. The processes of fission, which is splitting atoms, and fusion, which is combining atoms, give us another type of energy called nuclear energy. And finally, the energy of motion, kinetic energy, and the energy associated with position, potential energy, are collectively called mechanical energy.
That sounds like quite a lot, doesn't it? Well it is, but don't worry, it's actually all pretty easy to remember. Next, we'll explore all of these kinds of possible transformations in more detail.
Different Types of Energy Transformations
Chemical energy is the energy stored within a substance through the bonds of chemical compounds. The energy stored in these chemical bonds can be released and transformed during any type of chemical reaction.
Think of when you're hungry. When you eat a piece of bread to satisfy this hunger, your body breaks down the chemical bonds of the bread and uses it to supply energy to your body. In this process, the chemical energy is transformed into mechanical energy, which you use to move, and which we'll cover in more detail in a moment. It also transforms it into thermal energy, which is created through the metabolic processes in your body to generate heat. Most of the time, chemical energy is released in the form of heat, and this transformation from chemical energy to heat, or thermal energy, is called an exothermic reaction.
Next, there are two main types of mechanical energy: kinetic energy and potential energy. Kinetic energy is the energy associated with the motion of an object. Therefore, any object that moves has kinetic energy. Likewise, there are two types of potential energy: gravitational potential energy and elastic potential energy. Gravitational potential energy is associated with the energy stored by an object because of its location above the ground. Elastic potential energy is the energy stored by any object that can stretch or compress. Potential energy can be converted to kinetic energy and vice versa.
For example, when you do a death-defying bungee jump off of a bridge, you are executing a variety of energy transformations. First, as you prepare to jump, you have gravitational potential energy - is no elastic potential energy store elastic potential energy. You stop at the very bottom when the cord is fully stretched out, so at this point, you have elastic potential
Electrical energy is the energy carried by charged particles as they move around a conductor. A perfect example of electrical energy being released is during a .
Chemical energy can also be converted into electrical energy. For example, the chemical energy in a battery is converted into electrical energy. The electrical energy, which involves the motion of electrical charges or currents, can be used to power everyday devices like computers and flashlights.
Mechanical energy can also be transformed into electrical energy. For example, a hydroelectric plant uses the
Answer:
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Energy is present in many forms all around us such as electrical, kinetic, thermal, potential, and various other forms. There is also energy in the process of transfer from one body to another i.e. heat and work. Once energy is transferred it’s always designated according to its nature. Therefore, Thermal energy may result from the transfer of heat and work done may take the shape of mechanical energy.
Today, we’re discussing energy conversion and all the important aspects related to it.
So, read on!
Energy Conversion
Energy is the fundamental need of our everyday life. So much so, that the quality of life and even its sustenance, is dependent on the availability of energy. Hence, it is imperative for us to have a conceptual understanding of the various sources of energy, the conversion of energy from one form to another and the implications of these conversions.
You must have heard that heard that Energy conversion from one form to another is a well-known phenomenon. The Law of conservation of energy even tells us that the only thing that takes place with energy is the transformation from one form to another. This means that we can convert electrical energy into heat energy and light energy, solar energy can be converted to chemical energy, potential energy can be converted into kinetic energy, Gravitational potential energy can be converted into kinetic energy etc.
Energy Conversion is defined as the process where there is a change in energy from one form to another such as the conversion of nuclear energy into heat energy, the conversion of light energy into heat, thermal energy into work etc.
Types of Energy Conversions
There are various types of energy all around us and these energy sources can be converted from one form to another as explained below:
Light energy can be converted to heat energy.
Electrical energy can be converted to mechanical energy, light energy, heat energy, etc.
Chemical energy can be converted to electrical energy.
Thermal energy can be converted to heat energy.
Mechanical energy can be converted to electrical energy, potential energy, etc.
Nuclear energy can be converted to light energy and heat energy.
The Solar energy can be converted to heat energy, chemical energy, and electrical energy.
The Gravitational potential energy can be converted to kinetic energy.
Some examples of energy conversion are:
A vehicle moving is an example of chemical energy being converted into kinetic energy.
Electricity being produced with water is an example of potential energy being converted into kinetic energy.
A ball from a height towards the ground is an example of potential energy being converted into kinetic energy.
When you boil water using an electric kettle, it’s an example of electric energy being converted into heat energy.
These were some of the modern examples of energy conversion. Now, let’s take a look at how the energy conversion technology has evolved over the years and how the early humans used energy conversion by harnessing the natural forms of energy.
The Evolution of Energy Conversion
The Use of Fire: The first evidence of energy conversion from the early ages is when the ancient humans discovered the use of fire. They burned dried plant, wood, and animal waste and used the resultant energy for cooking and heating. This was followed by the use of mechanical energy that was used to harness the energy of flowing water and wind. However, this generation of mechanical energy with the invention of simple devices came much later around 2000 years after humans discovered the use of fire.
Waterwheels: The earliest evidence of a machine being used to grind grain is that of a waterwheel, which was later also used to drive sawmills and pumps, driving tilt hammers for forging iron, etc. Waterwheels were the primary means of mechanical power production, rivaled only occasionally by windmills. Therefore, many industrial towns, especially in early America, were set up at locations that assured water flow all year.
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