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Zhanna Zhanna Dec 18, 2020

व्हिच ऑप्शन इज यूज टू प्रिंट ऑल द पेज ऑफ वर्कशीट​

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Energy of an isolated system is constant. It can neither be created nor be destroyed but it can be transformed from one type to another.

For example, when an object falls on the ground from a certain height, its kinetic energy is converted into other forms of energy such as sound energy, heat energy, light energy, etc.

Examples of Law of Conversation of Energy

When petroleum oil is burnt, chemical energy is converted into other form of energy specially light and heat energy.

In process of generation of hydroelectricity, water in reservoir is flown to rotate the turbine to generate electricity. In this process, potential energy (water in reservoir) is converted to kinetic energy (flowing water) to electrical energy.

When speaker which doesn't have battery is turned on, electrical energy is converted to sound energy.

Energy Conservation for a Free

bristle bristle
Dec 19, 2020
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