Geothermal energy uses from the Earth's core to produce energy. chemicals
heat
sound
motion

According to the International Renewable Energy Agency (IRENA, 2019) geothermal energy is the heat that is given off from the core of the earth. ... Depending on its characteristics, geothermal energy can be used either for heating or be used to generate clean electrical energy.

the most common energy conversion is from kinetic energy to potential energy, and then from potential energy to kinetic energy.

later on comes the heat energy, mechanical energy, and other energy conversions.

this energy conversion is so common that we can find it in our day to day lives as well.

- one of the most common energy conversions involves the changing of potential energy to kinetic energy or kinetic energy to potential energy