Energy can be converted between different forms, enabling various applications and processes. Eight possible energy conversions include: 1) Mechanical to Electrical: Conversion of mechanical energy, such as from wind turbines or hydroelectric generators, into electrical energy. 2) Electrical to Mechanical: Conversion of electrical energy, as in electric motors, into mechanical energy to perform work or generate motion. 3) Thermal to Mechanical: Conversion of thermal energy, often from heat engines or steam turbines, into mechanical energy or work. 4) Chemical to Thermal: Conversion of chemical energy, through combustion or chemical reactions, into thermal energy. 5) Thermal to Electrical: Conversion of thermal energy, as in thermal power plants or thermoelectric generators, into electrical energy. 6) Nuclear to Electrical: Conversion of nuclear energy, through nuclear reactions or radioactive decay, into electrical energy. 7) Radiant to Electrical: Conversion of radiant energy, such as in solar cells, into electrical energy. 8) Nuclear to Thermal: Conversion of nuclear energy into thermal energy, utilized in nuclear reactors for power generation or other applications. These are some of the fundamental energy conversions that underpin numerous technological systems and processes, enabling the utilization of different energy sources and forms.