Intelligence.
chemical
A furnace or a burner.
An engine converts energy into mechanical motion.
fan converts electric energy into magnetic and further mechanical energy
A machine that converts one form of energy into another form is called a transducer.
An internal combustion engine converts chemical energy into Thermal Energy, and converts thermal energy into mechanical energy via the pistons, connecting rods, and crankshaft .
A battery stores chemical energy and converts it into electrical energy when connected to a circuit.
Chloroplast traps light energy and converts to chemical energy
A solar panel converts electromagnetic energy (light) into electrical energy.
An electric fan converts electrical energy into kinetic energy to produce air movement.
A flat iron converts electrical energy into heat energy. The electrical energy powers the heating element inside the flat iron, which then produces heat to straighten or style hair.