Describe any two energy flow models with flowchart.
Answers
Energy has been defined as the capacity to do work. Energy exists in two forms potential and kinetic.
Potential energy is the energy at rest {i.e., stored energy) capable of performing work. Kinetic energy is the energy of motion (free energy).
It results in work performance at the expense of potential energy. Conversion of potential energy into kinetic energy involves the imparting of motion.
The source of energy required by all living organisms is the chemical energy of their food. The chemical energy is obtained by the conversion of the radiant energy of sun.
The radiant energy is in the form of electromagnetic waves which are released from the sun during the transmutation of hydrogen to helium. The chemical energy stored in the food of living organisms is converted into potential energy by the arrangement of the constituent atoms of food in a particular manner. In any ecosystem there should be unidirectional flow of energy.