Essay about Energy And The Human Body

1517 Words Oct 31st, 2015 null Page
Energy and the Human Body

Energy

Energy is “The ability or capacity to do work”. There are five different types of energy; Chemical, Heat, Sound, Electrical and Light. Chemical energy is energy stored in atoms and molecules; it is released in a chemical reaction, with heat as a by-product.
Heat energy is the result of the movement of particles.
Sound energy is a form of energy which is linked to vibrations of matter. Electrical energy is when electrons move from atom to atom via the use of magnetic forces.
Light energy is a type of kinetic energy with the capability to create types of light people can see as well as undetectable waves.
The first law of thermodynamics is used when managing energy. The first law of Thermodynamics is that ‘The change in internal energy of a system is equal to the heat added to the system minus the work done by the system’.
Humans require energy; a reason we require energy is to keep the body functioning. For example, a heart beating and muscles moving; all these factors require energy to maintain doing their jobs. If we had no energy, these factors would cease to stop working and we would die. Also, energy is needed to maintain a sufficient body temperature. If we didn’t have energy to maintain our body temperature, we would either start suffering from diseases and disorders such as, Diabetes, Kidney failure and Liver failure etc. at a low body temperature. Or we could suffer from a fever from a high body temperature. Finally, we need…

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