* Energia elettrica: The machine is typically powered by electricity, which is the input energy.
* Energia meccanica: The electrical energy is used to power a motor, which in turn rotates a grinding mechanism (like a millstone or blades). This rotation is the mechanical energy used to grind the peppercorns.
Additional energy conversions:
* Energia termica: Some of the electrical energy is lost as heat due to friction within the motor and grinding mechanism. This is why the machine may become warm during use.
* Energia sonora: The grinding process produces sound energy, which is another form of energy conversion.
Therefore, the primary energy conversion in a pepper grinding machine is from electrical energy to mechanical energy , with some additional conversions to heat and sound energy.
