Not entirely sure what you mean but maybe this will help: In general the more pulleys you have in your system the less force you will need to apply to lift a certain load, in this case the system of pulleys is generally called a "block and tackle".
assuming that your question is what jobs are pulleys used for... then the answer is any job that you need to lift something that is heavy. The pulley give a mechanical advantage when used together with other pulleys to apply more force to move the object
Efficiency is the proportion of energy usefully used. Using a pulley system does not use less energy it just changes the ammount of force. Pulleys do have a small ammount of friction so having just one pulley would be more efficient. (but not much more)
it saved them time and effort
Victory gardens
Using more pulleys in a system can decrease the amount of force needed to lift an object. Each additional pulley reduces the amount of force required by distributing the load across multiple ropes, decreasing the overall effort needed.
A pulley system with more movable pulleys will decrease the effort force needed to lift an object. This is because the load is distributed among multiple strands of the rope, reducing the force required to lift the object.
pulleys can pull things up by using 1 rope or more(depending on how many wheels), and 2 or more wheels
The three types of pulleys are fixed pulley, movable pulley, and compound pulley. Fixed pulleys are attached to a stationary object, movable pulleys move along with the load, and compound pulleys combine both fixed and movable pulleys to provide mechanical advantage.
Pulleys in a flagpole system help to make raising and lowering the flag easier by distributing the force required. The pulley system allows for the flag to be hoisted and lowered with less effort as the weight is distributed between multiple ropes and pulleys. The more pulleys used, the easier it is to operate the flagpole system.
Pulleys are used in everyday life in various applications such as elevators, exercise machines, flagpoles, and cranes. They help to lift heavy loads with less effort by distributing the force needed to lift the object over multiple ropes or cables connected to the pulley system. By using pulleys, people can move heavy objects more easily and efficiently.
In physics, tension is the force transmitted through a rope, cable, or similar object when it is pulled tight. In mechanical systems, pulleys are used to change the direction of a force and can also be used to increase or decrease tension in a system. By using pulleys, mechanical systems can distribute forces more effectively and make it easier to lift heavy objects.
Pulleys make work easier by allowing a person to lift heavy objects with less effort. This is because pulleys can change the direction of the force applied and distribute the load over multiple ropes or cables. As a result, the force required to lift an object is reduced, making it more manageable for the person operating the pulley system.
Not entirely sure what you mean but maybe this will help: In general the more pulleys you have in your system the less force you will need to apply to lift a certain load, in this case the system of pulleys is generally called a "block and tackle".
The mechanical advantage (MA) of a pulley system is calculated using the formula: MA = Load Force / Effort Force. For a simple pulley, the MA is typically 1, as the effort needed to lift the load is equal to the load itself. However, in systems with multiple pulleys (block and tackle), the MA can equal the number of rope segments supporting the load. Thus, the more pulleys used, the greater the mechanical advantage.
More force is exerted with one pulley.
A pulley machine works by using a system of pulleys and ropes or cables to lift and move heavy objects. When force is applied to one end of the rope, it creates tension that is distributed across multiple pulleys, allowing the weight to be lifted with less effort. The more pulleys used in the system, the easier it is to lift heavy loads.