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   ocr: PULLEYS PULLEY is a simple machine. Wheel Ard decreases the amount of effort needed to lift a load. The main part ofthe pulley is made up ofa wheel, plus a rope that runs along Rope a groove in the wheel. The load is attached to one end of the rope, and the other end is pulled to move the load. The more pulleys that are used ina system, the less effort is required to move: al load. Wheel Wheel Using a pulley Load Itis possible to Rope magnify the effect ofaforce by using Wheel a pulley. Easing the load Wheel Pulleys are used to raise and lower beavy loads. - Load SEE FORMULA: FORMULA: ALSO NEC ...