1. Label the axle, the wheel and the rope on each pulley
2. Identify where the effort would be to create the lifting or lowering. Explain what each pulley does with the effort being applied
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1. Label the axle, the wheel and the rope on each pulley
2. Identify where the effort would be to create the lifting or lowering. Explain what each pulley does with the effort being applied
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In a pulley system, the effort is the force applied to the rope to lift or lower an object. There are two types of pulleys in a pulley system: fixed pulleys and movable pulleys.
A fixed pulley is attached to a stationary object, such as a ceiling or wall. It changes the direction of the force but does not provide any mechanical advantage. The effort needed to lift an object with a fixed pulley is the same as the weight of the object being lifted.
A movable pulley is attached to the object being lifted and moves with it. It provides a mechanical advantage, making it easier to lift heavy objects. The effort needed to lift an object with a movable pulley is half the weight of the object being lifted.
When a pulley system has both fixed and movable pulleys, the effort is applied to the rope that is looped around the movable pulley. The movable pulley moves with the load, while the fixed pulley changes the direction of the force. This configuration provides both mechanical advantage and the ability to change the direction of the force.