What is the term for the work you do on a machine or the energy put into a machine?

The term that describes the work done on a machine or the energy supplied to it is input energy. Input energy refers to all forms of energy that are provided to a machine to perform a specific task or operation. This energy is essential as it initiates the machine's function, allowing it to convert that energy into useful work or output energy.

Understanding input energy is crucial in the context of simple machines and their efficiency. The amount of input energy compared to the output energy can highlight how effective the machine is in performing its intended function. While terms like operational energy or power input might seem related, they do not specifically indicate the total energy supplied for the machine's use.