What is the function of each simple machines?

Simple machines are fundamental devices that help make work easier by altering the direction or magnitude of a force. The six types of simple machines—lever, inclined plane, wheel and axle, pulley, screw, and wedge—each serve distinct functions. A lever amplifies force, an inclined plane reduces the effort needed to lift objects, a wheel and axle facilitate movement, a pulley changes the direction of force, a screw converts rotational force into linear motion, and a wedge splits or lifts materials. Together, these machines form the basis for more complex machinery and tools.