Mustaqil ish mavzu : What is energy? Types of energy Bajardi: 411-guruh talabasi Xolmatov Nurmuhammad jizzax-2021 yil Plan

Potential Energy

Potential energy is contained in any object that is at rest. It is also called stored energy.  It is the general opposite of kinetic energy. The heavier the object, the more its potential energy. A good example is the water held up in a hydroelectric power dam at a raised level which is then used to run the turbines when it is released, bringing about kinetic energy.

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  Energy that is stored in matter, waiting to be released.
  
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  Examples:
  

• But height is not the only way for potential energy to change to kinetic energy. Can you think of any?

3. Mechanical Energy

Mechanical energy refers to transferred energy. It results from the mix of kinetic and potential (stored) energy. To understand how these two types of energy work, we need to know the difference between the two. Kinetic energy is due to an objects motion and potential (stored) energy is due to an objects position. For instance, the bawling ball has mechanical energy in that the ball is in motion and then when it strikes the pin the potential (stored) energy is released thus transferring mechanical energy to the pins.

The same applies when there is work done in opening a door by pushing or pulling it. The stored energy in a person is used to push the door through kinetic energy. In short, mechanical energy is the force that acts on an object to make it change shape, move, or displace from its original location. In other words, mechanical energy is the sum of potential (stored) and kinetic energy that is used to do work.

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