A pulley is a simple machine that is used to lift or move objects. It consists of a wheel with a groove around its circumference, and a rope or belt that wraps around the wheel. When one end of the rope is pulled, the object on the other end is lifted.
A pulley works by changing the direction of the force applied to an object. When the rope is pulled down, the object is lifted up. The more pulleys that are used in a system, the easier it is to lift heavy objects.
Tension is a force that is transmitted through a rope, wire, or any other type of flexible material. It is a pulling force that is exerted on both ends of the material.
The mass of an object affects the amount of force needed to lift it using a pulley system. The heavier the object, the more force is needed to lift it. This is because the weight of the object creates a greater downward force, which must be countered by an equal upward force.
The angle of the rope affects the mechanical advantage of a pulley system. The larger the angle, the more force is needed to lift an object. This is because a larger angle results in a smaller amount of the force being used to lift the object, while the rest of the force is used to pull the rope in a horizontal direction.