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Pulleys Fixed Pulley Movable Pulley Block and Tackle.

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Presentation on theme: "Pulleys Fixed Pulley Movable Pulley Block and Tackle."— Presentation transcript:

1 Pulleys Fixed Pulley Movable Pulley Block and Tackle

2 What is a Pulley? Pulleys are a kind of simple machine that consists of a rope that fits onto a wheel and changes the direction of a force. There are three kinds of pulleys. Fixed Pulley Movable Pulley Block and Tackle (combo of fixed and movable)

3 Fixed Pulley Wheel attached to surface Changes the direction of the applied force NO mechanical advantage – same amount of force is required

4 Movable Pulley Pulley moves along the rope Wheel supports the load Effort is in the same direction as movement Reduces the forces needed to move an object

5 Block and Tackle Has at least two wheels (one movable and one fixed) The more complex the pulley, the more the effort needed to move the object decreases

6 Common Examples Of Pulleys


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