Why Is Energy Important At Work?

The concept of energy is very important to know because it is used in everyday life. Energy is used when getting out of bed just to dread going to school, heating up left overs, and even boiling some water. Energy cannot be destroyed or created, only passed from one object to another. A great example of energy is the transfer of heat. An ice cube sitting in the hand of a person can show energy at work. Heat from the hand causes the cube to melt and change forms into liquids. To understand energy a little more, understanding work is important. Work is equal to force multiplied by distance that was applied to the object. In the end energy is the measurement of the possibility of an object working on another object.

With knowing how energy works, it is possible to understand the Laws of Thermodynamics and how they relate to heat transfer. Within the Laws of Thermodynamics there are three ways that heat can be transferred. These ways are convection, conduction, and finally radiation. Convection deals with liquid heat transfers. Convections currents are used typically with liquids because the hotter fluids tend not to be as dense as the cooler parts, enabling for hotter fluids to rise above the cooler. Conduction does not flow like convection. When the heat is transferred, it is internally from the vibrations. Metals, copper being a great one, are the best conductors because they have more free electrons when compared to non-metals. Since electrons can carry heat and there is many free ones moving around in the structure of the metal, heat can spread with ease throughout the metal. Finally the last transfer is radiation. …show more content…
Calorimetry is the science of measuring the amount of heat. There have been multiple techniques have been created throughout many years. Each technique is based off of three things, measurements of heat that could be generated, consumed during, and heat that disappeared from a