simple automatic, any of several accessories with few or no moving parts that exist utilised toward modify motion and the magnitude by a force in order to execute works. They are the simplest mechanisms known that can use leverage (or mechanical advantage) at increase force. The simple machines are the inclined airplane, lever, wedge, wheel press spindle, pulley, and screw. An inclined plane consists of a sloping surface; it is pre-owned for educate heavy bodies. To plane offers a unthinking take in that the force need up move an object above the incline is less than aforementioned weight being raised ...(100 of 1337 words)