Britannica
Sources used in this answer
What are the input, output, and transforming parts of a machine?
Created from Britannica articles
using AI.
AI can make mistakes, so verify using Britannica articles.
machine
Six simple machines for transforming energy into work.
A machine is defined as a device that augments or replaces human or animal effort to accomplish physical tasks. Every machine consists of three fundamental components:1
- Input: This is the energy or effort provided to the machine to initiate its operation. Inputs can take various forms, such as chemical, thermal, electrical, or nuclear energy, or simply physical force applied by a human or animal.1
- Transforming, Modifying, and Transmitting Device: This is the core mechanism of the machine. Its function is to convert the input energy into a different form (such as transforming chemical energy into mechanical energy) or to modify and transmit forces and motions to perform a specific task.21
- Output: This is the final result produced by the machine. Depending on the machine's purpose, the output may be mechanical energy (such as a rotating shaft), processed materials, or the completion of a specific physical action.1
These components work together to allow machines to perform complex tasks, whether they are simple devices like an inclined plane or complex systems like an internal-combustion engine.21