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Forms of Energy The forms of energy include thermal energy, radiant energy, electrical energy, nuclear energy, and chemical energy Figure 5.1 "Forms of Energy" . Thermal energy results from atomic and molecular motion; the faster the motion, the greater the thermal energy. The temperature of an object is a measure of its thermal energy content. Radiant energy is the energy carried by light, microwaves, and radio waves. Objects left in bright sunshine or exposed to microwaves become warm because much of the radiant energy they absorb is converted to thermal energy. Electrical energy results from the flow of electrically charged particles. When the ground and a cloud develop a separation of charge, for example, the resulting flow of electrons from one to the other produces lightning, a natural form of electrical energy. Nuclear energy is stored in the nucleus of an atom, and chemical energy is stored within a chemical compound because of a particular arrangement of atoms. a Thermal energy results from atomic and molecular motion; molten steel at 2000C has a very high thermal energy content. b Radiant energy e. , from the sun is the energy in light, microwaves, and radio waves. c Lightning is an example of electrical energy, which is due to the flow of electrically charged particles. d Nuclear.