Friday, December 10, 2010

Energy in Different Forms

There are many forms of energy in the world. Today, i will talk about some of these types of energy.

Chemical Potential Energy:
This energy involves atoms and molecules. Chemical bonds form within these molecules. In other words, objects that do work from fuels have chemical potential energy. For example, a car has chemical potential energy from the gas it has within it.

Mechanical Kinetic Energy:
Before I get into mechanical kinetic energy, we need to know what mechanical energy is first. Take a strongman lifting weights in the gym. As he is lifting them up, he is doing work. When an object does work, they are using mechanical energy. So what is mechanical kinetic energy? That's the energy the object with mechanical energy transfers to the other object, causing it to have a displacement. This object has now moved, and whenever an object is said to be moving, it has kinetic energy.

Gravitational Potential Energy:
This is the energy any object has because they are on Earth. Earth's gravity pulls down the object, causing it to have gravitational potential energy.

 Elastic Potential Energy:
This energy involves elastic objects such as slingshots  and bows. When a projectile is placed on the string of these objects, and the string is pulled back, the tension in the string builds up. When the string is let go, all that elastic potential energy is transferred onto the projectile, launching it forward.

Thermal Energy:
This is energy that deals with heat and temperature.

Sound Energy:
Energy that involves vibrations from an object.

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