A machine is one that

Explanation:

Machine:

• A machine is a device that reduces human effort. It transfers motion from one point to another by the application of force.
• Its mechanism is simple. Examples inclined plane, lever, pulley, etc
• simple machine, any of several devices with few or no moving parts that are used to modify motion and the magnitude of a force in order to perform work.​
• They are the simplest mechanisms known that can use leverage (or mechanical advantage) to increase force.
  • Inclined plane: An inclined plane consists of a sloping surface.it is used for raising heavy bodies. 
  • lever: A lever is a bar or board that rests on a support called a fulcrum. A downward force exerted on one end of the lever can be transferred and increased in an upward direction at the other end, allowing a small force to lift a heavyweight.
  • Wedge: A wedge is an object that tapers to a thin edge. Pushing the wedge in one direction creates a force in a sideways direction. It is usually made of metal or wood and is used for splitting, lifting, or tightening, as in securing a hammerhead onto its handle.
  • Wheel and axle: A wheel and axle are made up of a circular frame (the wheel) that revolves on a shaft or rod (the axle). In its earliest form, it was probably used for raising weights or water buckets from wells.
  • Pulley: A pulley is a wheel that carries a flexible rope, cord, cable, chain, or belt on its rim. Pulleys are used singly or in combination to transmit energy and motion. Pulleys with grooved rims are called sheaves.