Get Gizmo Answer Pulley Lab Answer Key

How do pulleys make it easier to lift? Pulleys are simple machines that can change the direction of force, making it much simpler for us to move objects. They also increase mechanical advantage when we use multiple pulleys together. This process decreases the amount of force required to lift something up.

The efficiency of the pulley affects how much force is needed because when the object is levitated, there is less force required to lift the object.

Pulleys are mechanisms compost by wheel and rope used to lift heavy objects onto tall heights. They change the direction of an applied force and they can even reduce the force needed to lift a weight. Pulleys systems are common used in constructions.

Using multiple pulleys decreases the amount of force necessary to move an object by increasing the amount of rope used to raise the object. The mechanical advantage (MA) of a pulley system is equal to the number of ropes supporting the movable load.

Introduction: A pulley is an example of a simple machine. Many simple machines are useful because they allow the user to lift a heavy weight using less force than it would take to lift the weight directly. The mechanical advantage of the machine is a measure of this benefit.

A pulley with only one wheel lets you to reverse the direction of your lifting force by pulling down on a rope (that's looped over the wheel), lifting your weight. With a two-wheel pulley set, you reduce the effort you exert to lift the same amount of weight.

Pulleys act as simple levers. The side where the rope is being pulled is called the effort and the weight being lifted is called the load. Mechanical Advantage is the ratio of load to effort. Pulleys and levers alike rely on mechanical advantage.