All machines are classified as simple or complex. Raise your hand if you can tell me the difference between simple and complex machines. The principle component or part of a complex machine is a lever. When we use machines, we have what we call a mechanical advantage. This means whatever amount of force we use on the machine is multiplied by the machine.
Mechanical advantage is expressed in one of two ways.
As I hold up one of the simple machines, tell me which purpose it fulfills. A pulley is a simple machine that may change the amount, speed, and direction of a force. It is a wheel that turns on an axle. It can be fixed or movable. The total number of support ropes of a movable pulley is always equal to the ideal mechanical advantage.