Junior Scientist Mechanical Advantages of Pulleys  (Multicolor)

Do - It - Yourself kit for Understanding Mechanical Advantage in the Single Sheave Pulley Systems Used in Rescue Operations. HOW IT WORKS Pull the rope of each from the same vertical height down to the base. Now observe that the mass of the single pulley rises twice as high as the double pulley with twice the effort or force. Record your observations. How much can you lift with the assistance of the movable pulley? How do pulleys make work easier? Pulleys are powerful simple machines. They can change the direction of a force, which can make it much easier for us to move something. If we want to lift an object that weighs 10 kilograms one meter high, we can lift it straight up or we can use a pulley, so we can pull down on one end to lift the object up.