The swan was seen as a traditional symbol of beauty and grace in ancient Greece, and was sacred to Aphrodite. The swan was also sacred to Apollo, the god of music (among other things), in Greek mythology. At the time, the people believed that the swan sang a sweet and beautiful song when people died.
For example, in case of monatomic gas it is just a kinetic energy of motion of atoms of gas as measured in the reference frame of the center of mass of gas. In case of molecules in the gas rotational and vibrational energy is involved.
KINETIC ENERGYKinetic energy is motionââof waves,electrons, atoms, molecules, substances,and objects. POTENTIAL ENERGYPotential energy is stored energy and theenergy of positionââgravitational energy.There are several forms of potential energy. Electrical Energy is themovement of electricalcharges. Everything ismade of tiny particlescalled atoms.