what is a form of energy that is produced by the movement of molecules in a substance?
<answer> Thermal energy is a form of energy that is produced by the movement of molecules in a substance. <context> Thermal energy, or heat, is the energy that comes from the movement of atoms and molecules in a substance. Heat increases with increases in the speed that these particles move. Geothermal energy is the thermal energy in the earth. Motion energy is energy stored in the movement of objects