polea در ۳۰ ثانیه
- A pulley is a wheel that uses a rope to lift or move things.
- It helps make heavy tasks easier by changing force direction.
- Found in cranes, wells, and even window blinds.
- Key component in mechanical systems for lifting and power.
- Definition
- A pulley is a wheel on an axle or shaft that is designed to support movement and change the direction of a taut string or rope, or to transmit power between the shaft and cable or belt. It is a simple machine, consisting of a grooved wheel, over which a rope or chain passes, used to change the direction of a force or to gain mechanical advantage.
- Etymology
- The word 'pulley' comes from the Latin word 'pullicare', meaning 'to draw water'. This refers to one of the earliest uses of pulleys, which was in water-lifting devices.
- Function
- Pulleys are fundamental components in many mechanical systems. They are used to lift heavy objects, such as in construction cranes or in well systems. They can also be used to change the direction of force, making it easier to pull or push something. In some applications, a system of pulleys can provide a mechanical advantage, meaning that less force is required to lift a heavy load.
- Applications
- You'll find pulleys in a vast array of situations. In your home, they might be part of a clothesline or a window blind mechanism. In industry, they are crucial for cranes, conveyor belts, and elevators. In sailing, pulleys are used to adjust sails. Even in simple toys, like a pirate's grappling hook, a pulley mechanism might be implied. They are essential for tasks requiring lifting, lowering, or redirecting force efficiently.
El constructor usó una polea para subir los materiales al tejado.
- Types of Pulleys
- There are two main types of pulleys: fixed and movable. A fixed pulley is attached to a support and does not move. It changes the direction of the force. A movable pulley is attached to the load and moves with it. It can reduce the amount of force needed. Combinations of fixed and movable pulleys create pulley systems that offer greater mechanical advantage.
- Mechanical Advantage
- The mechanical advantage of a pulley system is the ratio of the load to the effort. A system with more pulleys generally provides a greater mechanical advantage, allowing you to lift heavier objects with less effort. This principle is widely used in engineering and physics to solve problems related to lifting and moving heavy loads efficiently.
Necesitamos una polea más grande para levantar esta roca.
La polea del pozo estaba oxidada.
- Basic Usage
- The most straightforward way to use 'polea' is in sentences describing a physical object or its function. You will often see it in contexts related to construction, mechanics, or any situation involving lifting or moving heavy objects with ropes or cables.
- Describing Actions
- Sentences can focus on the action performed by the pulley or the action involving the pulley. For instance, 'La polea levanta el peso' (The pulley lifts the weight) or 'Usamos una polea para subir la caja' (We used a pulley to lift the box).
- In Mechanical Contexts
- When discussing machinery or technical equipment, 'polea' fits naturally. You might hear or read about 'el sistema de poleas' (the pulley system) or 'la polea de transmisión' (the transmission pulley).
- In Everyday Situations
- Even in less technical scenarios, 'polea' can appear. A clothesline might use a pulley, or a simple pulley could be part of a window covering. The key is the presence of a wheel that guides a rope or cable.
- Figurative Use (Less Common)
- While not a common idiom, 'polea' can sometimes be used metaphorically to describe a mechanism or system that facilitates something, though this is rare and context-dependent. Stick to the literal meaning for learners.
El marinero ajustó la vela con una polea.
- Grammar Note
- 'Polea' is a feminine noun. Remember to use feminine articles ('la', 'una') and adjectives when referring to it. For example, 'la polea vieja' (the old pulley) or 'una polea fuerte' (a strong pulley).
- Compound Structures
- 'Polea' can be part of compound nouns, such as 'polea de bloque' (block pulley) or 'polea de elevación' (lifting pulley). These phrases specify the type or purpose of the pulley.
El sistema de poleas facilitó la tarea.
¿Puedes pasarme esa polea? La necesitamos para bajar la carga.
- Construction Sites
- In Spanish-speaking countries, you will frequently hear 'polea' on construction sites. Workers discussing how to lift heavy materials, such as beams or concrete blocks, will use this term. Phrases like 'Necesitamos una polea más fuerte' (We need a stronger pulley) or 'Asegura la polea' (Secure the pulley) are common.
- Workshops and Garages
- Mechanics and technicians use 'polea' when referring to parts of engines or other machinery. For example, 'La polea del cigüeñal está desgastada' (The crankshaft pulley is worn out) or 'Cambia la polea del alternador' (Change the alternator pulley). This is particularly true in automotive repair and industrial maintenance.
- Ports and Docks
- In areas with maritime activity, 'polea' is essential for describing how cargo is loaded and unloaded. You might hear discussions about 'el sistema de poleas de la grúa' (the crane's pulley system) or the operation of winches, which often involve pulleys.
- Home Improvement and DIY
- When people are discussing home repairs or DIY projects that involve lifting or moving things, 'polea' might come up. This could be for a simple clothesline setup, a pulley system for a garden gate, or even for raising bird feeders. '¿Tienes una polea para esto?' (Do you have a pulley for this?) is a typical question.
- Educational Settings
- In physics classes or vocational training, 'polea' is a standard term used when teaching about simple machines, mechanical advantage, and forces. Teachers and students will use it extensively in explanations and problem-solving.
El capataz gritó: "¡Cuidado con la polea que está suelta!"
- Sailing
- Sailors use pulleys extensively to control sails and other rigging. You'll hear terms like 'la polea de escota' (the sheet pulley) or discussions about adjusting tension using pulley systems.
- Well Systems
- In rural areas or older properties, traditional wells often feature a pulley system to draw water. The term 'polea' is directly associated with this mechanism. 'La polea del pozo' is a common phrase.
El mecánico revisó la polea del ventilador del motor.
- Confusing with Similar Concepts
- Learners might confuse 'polea' with other mechanical components that involve rotation or movement, such as 'rueda' (wheel) or 'engranaje' (gear). While a pulley is a type of wheel, its primary function is to guide a rope or cable and change the direction of force or provide mechanical advantage. A 'rueda' is a more general term for a rotating disc, and an 'engranaje' has teeth designed to mesh with other gears to transmit torque.
- Gender Agreement
- As 'polea' is a feminine noun, a common mistake is to use masculine articles or adjectives. For example, saying 'el polea' instead of 'la polea', or 'un polea viejo' instead of 'una polea vieja'. Always remember 'la polea'.
- Overgeneralization
- Some learners might use 'polea' to refer to any wheel that spins, even if it doesn't involve a rope or cable. For instance, calling a car wheel a 'polea' would be incorrect. The defining characteristic of a 'polea' is its role in a rope or cable system.
- Pluralization
- While 'polea' is generally used in its singular form to refer to a single pulley, when referring to multiple pulleys, the correct plural is 'poleas'. Misplacing the plural ending or using an incorrect form is a potential error.
- Contextual Misapplication
- Using 'polea' in contexts where it doesn't apply, such as in describing a simple lever or a ramp, is another common mistake. The word is specific to a wheel-and-rope mechanism.
Incorrecto: Usamos un polea para mover el coche.
Correcto: Usamos un gato (jack) para mover el coche.
- Pronunciation Errors
- While not strictly a vocabulary mistake, mispronouncing 'polea' can lead to misunderstandings. The stress is on the second syllable: po-LE-a. Incorrect stress might make it sound like a different word or be difficult to understand.
- Using 'Polea' for General Wheels
- A common error is using 'polea' for any wheel that rotates. For example, referring to the wheels on a shopping cart as 'poleas' is incorrect. 'Ruedas' is the appropriate term for cart wheels. 'Polea' specifically refers to a wheel used with a rope or cable.
Incorrecto: La polea de mi bicicleta está rota.
Correcto: La cadena (chain) o el plato (chainring) de mi bicicleta está roto.
- Polea vs. Rueda
- Polea: Specifically a wheel designed to support movement and change the direction of a rope or cable, often to gain mechanical advantage. It usually has a groove.
Rueda: A general term for any wheel, a circular object that rotates on an axle. It can be used for transportation, rotation, or as part of a machine, but doesn't necessarily involve a rope or cable.
Example: 'La polea del pozo ayudaba a subir el agua, mientras que las ruedas del carro permitían moverlo por el camino.' (The pulley of the well helped lift the water, while the wheels of the cart allowed it to be moved along the road.) - Polea vs. Engranaje
- Polea: Uses a rope or belt to transmit motion or change direction of force.
Engranaje: A wheel with teeth that mesh with the teeth of another gear to transmit rotational motion and torque. Used for power transmission and speed changes.
Example: 'La polea en la máquina de ejercicios usa una cuerda, pero el motor tiene engranajes para aumentar la potencia.' (The pulley on the exercise machine uses a rope, but the engine has gears to increase power.) - Polea vs. Carrete
- Polea: A wheel that guides a rope/cable, often for lifting or changing direction of force. It's usually fixed or part of a system.
Carrete: A spool or cylinder on which something is wound, like thread, film, or fishing line. It's primarily for storing or dispensing.
Example: 'Usamos una polea para subir el cubo de agua, y el pescador usa un carrete para su sedal.' (We use a pulley to lift the bucket of water, and the fisherman uses a reel for his fishing line.) - Polea vs. Bloque
- Polea: The wheel itself.
Bloque: Often refers to a pulley system or a casing that holds one or more pulleys. A 'bloque de poleas' is a common term.
Example: 'El bloque de poleas en el mástil del barco es esencial para izar las velas.' (The block of pulleys on the ship's mast is essential for hoisting the sails.) - Alternative Terms (Context-Dependent)
- Depending on the specific application, other terms might be used informally, but 'polea' is the standard. For instance, in some very specific industrial contexts, a particular type of wheel might have a more technical name, but 'polea' remains the general and most common term.
The main difference is function: a polea works with a rope/cable, a rueda just turns, and an engranaje has teeth.
چقدر رسمی است؟
نکته جالب
The concept of the pulley as a simple machine has been understood since ancient times. Archimedes is often credited with describing its principles, though evidence suggests its use predates him by centuries, particularly in ancient Egypt and Mesopotamia for construction and irrigation.
راهنمای تلفظ
- Pronouncing the 'o' as a long 'oh' sound when it should be short (like in 'pot').
- Running the final 'ea' together into a single vowel sound instead of a distinct 'uh'.
- Incorrectly stressing the first syllable.
- Adding an extra sound or syllable.
- Confusing it with similar-sounding English words.
سطح دشواری
The word 'polea' is common in technical and practical contexts, making it moderately easy to encounter in reading materials related to construction, mechanics, or physics. Understanding its specific function requires some context.
بعداً چه یاد بگیریم؟
پیشنیازها
بعداً یاد بگیرید
پیشرفته
گرامر لازم
Gender of Nouns
Since 'polea' is feminine, it requires feminine articles and adjectives: 'la polea', 'una polea', 'la polea roja', 'una polea fuerte'.
Pluralization of Nouns ending in -a
Nouns ending in -a often form their plural by changing -a to -as: 'polea' becomes 'poleas'.
Using 'para' + Infinitive
The preposition 'para' is used to express purpose: 'Usamos una polea para levantar el peso.' (We use a pulley to lift the weight.)
Verb Conjugation: 'Usar' (to use)
Past tense: 'Yo usé una polea.' (I used a pulley.) Future tense: 'Nosotros usaremos una polea.' (We will use a pulley.)
Adjective Agreement
Adjectives must agree in gender and number with the noun they modify: 'una polea vieja', 'unas poleas viejas'.
مثالها بر اساس سطح
La polea ayuda a subir el balde.
The pulley helps lift the bucket.
This is a simple sentence structure. 'Ayuda a' means 'helps to'. 'Subir' is the infinitive verb 'to lift'.
Mira la polea en el techo.
Look at the pulley on the ceiling.
This uses the imperative 'Mira' (Look). 'En el techo' means 'on the ceiling'.
Necesito una polea pequeña.
I need a small pulley.
'Pequeña' is the feminine adjective 'small', agreeing with 'polea'.
La polea es redonda.
The pulley is round.
'Redonda' is the feminine adjective 'round', agreeing with 'polea'.
La cuerda pasa por la polea.
The rope passes through the pulley.
'Pasa por' means 'passes through'.
Hay una polea en el jardín.
There is a pulley in the garden.
'Hay' means 'there is' or 'there are'.
La polea mueve cosas.
The pulley moves things.
'Mueve' is the third-person singular present tense of 'mover' (to move).
Es una polea útil.
It is a useful pulley.
'Útil' is an adjective that doesn't change for gender or number.
El constructor usó una polea para subir los materiales.
The construction worker used a pulley to lift the materials.
Past tense 'usó' (used). 'Para subir' means 'to lift'.
Necesitamos un sistema de poleas para levantar la viga.
We need a pulley system to lift the beam.
'Sistemas de poleas' is the plural form. 'Levantar' means 'to lift'.
La polea del pozo estaba vieja y oxidada.
The pulley of the well was old and rusty.
Past tense 'estaba' (was). Adjectives 'vieja' (old) and 'oxidada' (rusty) agree with 'polea'.
¿Puedes ajustar la polea de la cortina?
Can you adjust the pulley of the curtain?
Question using 'Puedes' (Can you). 'Ajustar' means 'to adjust'.
El marinero usó la polea para tensar la vela.
The sailor used the pulley to tighten the sail.
'Tensar' means 'to tighten'.
Esta polea nos da ventaja mecánica.
This pulley gives us mechanical advantage.
'Nos da' means 'gives us'.
Reemplazaremos la polea defectuosa mañana.
We will replace the defective pulley tomorrow.
Future tense 'reemplazaremos' (we will replace). 'Defectuosa' means 'defective'.
La polea de la grúa levanta cargas pesadas.
The crane's pulley lifts heavy loads.
'Grúa' means 'crane'. 'Cargas pesadas' means 'heavy loads'.
El sistema de poleas en el gimnasio permite ajustar la resistencia.
The pulley system in the gym allows for resistance adjustment.
'Permite' (allows) followed by infinitive 'ajustar' (to adjust). 'Resistencia' means 'resistance'.
La eficiencia de la polea depende de su lubricación y del estado de la cuerda.
The efficiency of the pulley depends on its lubrication and the condition of the rope.
'Depende de' (depends on). 'Estado' means 'condition'.
Se instaló una polea de doble garganta para aumentar la capacidad de carga.
A double-groove pulley was installed to increase the load capacity.
'Garganta' means 'groove'. 'Capacidad de carga' means 'load capacity'.
Antes de usar la polea, verifica que no haya obstrucciones en la vía de la cuerda.
Before using the pulley, check that there are no obstructions in the rope's path.
Imperative 'verifica' (check). 'Obstrucciones' means 'obstructions'.
El mecanismo de poleas es crucial para el funcionamiento de los ascensores modernos.
The pulley mechanism is crucial for the operation of modern elevators.
'Crucial para' (crucial for). 'Funcionamiento' means 'operation'.
La polea de transmisión en el motor del coche transfiere potencia al alternador.
The transmission pulley in the car engine transfers power to the alternator.
'Transfiere potencia' (transfers power). 'Alternador' means 'alternator'.
Se puede lograr un mayor alcance con un sistema de poleas móviles.
Greater reach can be achieved with a system of movable pulleys.
'Se puede lograr' (can be achieved). 'Alcance' means 'reach'.
La polea de la ventana estaba atascada, impidiendo que se abriera completamente.
The window pulley was stuck, preventing it from opening completely.
'Atascada' means 'stuck'. 'Impidiendo que' means 'preventing from'.
El diseño de la polea con rodamientos de bolas minimiza la fricción y maximiza la eficiencia.
The design of the pulley with ball bearings minimizes friction and maximizes efficiency.
'Rodamientos de bolas' means 'ball bearings'. 'Minimiza' and 'maximiza' are common verbs in technical contexts.
La polea de bloqueo, comúnmente utilizada en escalada, permite fijar la cuerda en una posición determinada.
The locking pulley, commonly used in climbing, allows the rope to be fixed in a specific position.
'De bloqueo' means 'locking'. 'Fijar' means 'to fix'.
La correcta alineación de las poleas es fundamental para evitar el desgaste prematuro de la correa de transmisión.
The correct alignment of the pulleys is fundamental to avoid premature wear of the transmission belt.
'Alineación' means 'alignment'. 'Desgaste prematuro' means 'premature wear'.
En ingeniería naval, las poleas son esenciales para el manejo de cabos y velas, optimizando la maniobrabilidad.
In naval engineering, pulleys are essential for handling ropes and sails, optimizing maneuverability.
'Ingeniería naval' means 'naval engineering'. 'Maniobrabilidad' means 'maneuverability'.
La polea de contrapeso se emplea en elevadores para equilibrar el peso de la cabina y reducir el consumo energético.
The counterweight pulley is used in elevators to balance the cabin's weight and reduce energy consumption.
'Contrapeso' means 'counterweight'. 'Consumo energético' means 'energy consumption'.
La polea de distribución en un motor de combustión interna sincroniza el movimiento del cigüeñal y el árbol de levas.
The timing pulley in an internal combustion engine synchronizes the movement of the crankshaft and the camshaft.
'Distribución' means 'timing' or 'distribution'. 'Árbol de levas' means 'camshaft'.
El principio de Arquímedes se ilustra a menudo con sistemas de poleas para demostrar la ventaja mecánica.
Archimedes' principle is often illustrated with pulley systems to demonstrate mechanical advantage.
'Principio de Arquímedes' means 'Archimedes' principle'.
Una polea de poleas es una configuración compleja que puede multiplicar la fuerza aplicada de manera significativa.
A block and tackle is a complex configuration that can significantly multiply applied force.
'Polea de poleas' can refer to a block and tackle system. 'Multiplicar la fuerza' means 'to multiply force'.
La optimización del diseño de la polea de transmisión puede influir directamente en la eficiencia global del tren motriz.
Optimizing the design of the transmission pulley can directly influence the overall efficiency of the drivetrain.
'Optimización' (optimization), 'influir directamente' (directly influence), 'tren motriz' (drivetrain).
La selección de materiales para la polea debe considerar factores como la resistencia a la tracción, la abrasión y la fatiga.
The selection of materials for the pulley must consider factors such as tensile strength, abrasion, and fatigue.
'Resistencia a la tracción' (tensile strength), 'abrasión' (abrasion), 'fatiga' (fatigue).
Los sistemas de poleas de alta tecnología incorporan sensores para monitorizar el desgaste y predecir fallos.
High-tech pulley systems incorporate sensors to monitor wear and predict failures.
'Incorporan sensores' (incorporate sensors), 'monitorizar' (monitor), 'predecir fallos' (predict failures).
El principio de la polea se aplica en diversos campos, desde la maquinaria industrial hasta la robótica avanzada.
The principle of the pulley is applied in various fields, from industrial machinery to advanced robotics.
'Campos' (fields), 'maquinaria industrial' (industrial machinery), 'robótica avanzada' (advanced robotics).
La polea de la rueda de inercia ayuda a mantener una velocidad de rotación constante en ciertas aplicaciones.
The flywheel pulley helps maintain a constant rotational speed in certain applications.
'Rueda de inercia' (flywheel), 'velocidad de rotación constante' (constant rotational speed).
La fricción en la polea puede ser un factor limitante si no se gestiona adecuadamente mediante lubricación o diseño.
Friction in the pulley can be a limiting factor if not managed properly through lubrication or design.
'Factor limitante' (limiting factor), 'gestiona adecuadamente' (managed properly).
La polea de distribución, a menudo impulsada por una correa dentada, es vital para la sincronización precisa del motor.
The timing pulley, often driven by a toothed belt, is vital for precise engine synchronization.
'Correa dentada' (toothed belt), 'sincronización precisa' (precise synchronization).
En sistemas de aparejo complejos, la configuración de las poleas determina la distribución de cargas y la facilidad de operación.
In complex rigging systems, the configuration of the pulleys determines load distribution and ease of operation.
'Aparejo' (rigging), 'distribución de cargas' (load distribution), 'facilidad de operación' (ease of operation).
La dinámica de la polea en sistemas de alta velocidad presenta desafíos significativos en cuanto a vibraciones y estabilidad.
The dynamics of the pulley in high-speed systems present significant challenges regarding vibrations and stability.
'Dinámica' (dynamics), 'desafíos significativos' (significant challenges), 'vibraciones y estabilidad' (vibrations and stability).
La selección de una polea para aplicaciones aeroespaciales requiere un análisis exhaustivo de sus propiedades bajo condiciones extremas.
The selection of a pulley for aerospace applications requires an exhaustive analysis of its properties under extreme conditions.
'Aplicaciones aeroespaciales' (aerospace applications), 'análisis exhaustivo' (exhaustive analysis), 'condiciones extremas' (extreme conditions).
La polea de transmisión, cuando se integra en sistemas de propulsión eléctrica, debe cumplir rigurosos estándares de fiabilidad.
The transmission pulley, when integrated into electric propulsion systems, must meet rigorous reliability standards.
'Sistemas de propulsión eléctrica' (electric propulsion systems), 'rigurosos estándares de fiabilidad' (rigorous reliability standards).
El estudio de la fatiga de materiales en las poleas sometidas a cargas cíclicas es crucial para la prevención de fallos catastróficos.
The study of material fatigue in pulleys subjected to cyclic loads is crucial for the prevention of catastrophic failures.
'Cargas cíclicas' (cyclic loads), 'prevención de fallos catastróficos' (prevention of catastrophic failures).
La polea de distribución, como componente clave en la sincronización del motor, impacta directamente en el rendimiento y la eficiencia del combustible.
The timing pulley, as a key component in engine synchronization, directly impacts performance and fuel efficiency.
'Impacta directamente en' (directly impacts), 'rendimiento y la eficiencia del combustible' (performance and fuel efficiency).
La polea de poleas, o aparejo, ha sido fundamental en la ingeniería desde la antigüedad para la elevación de cargas masivas.
The block and tackle, or rigging, has been fundamental in engineering since antiquity for lifting massive loads.
'Aparejo' (rigging), 'cargas masivas' (massive loads).
La miniaturización de los sistemas de poleas abre nuevas posibilidades en micro-robótica y dispositivos médicos.
The miniaturization of pulley systems opens new possibilities in micro-robotics and medical devices.
'Miniaturización' (miniaturization), 'micro-robótica' (micro-robotics).
La polea de transmisión puede ser un punto crítico en la gestión de la energía, afectando la transferencia de torque y la durabilidad del sistema.
The transmission pulley can be a critical point in power management, affecting torque transfer and system durability.
'Punto crítico' (critical point), 'gestión de la energía' (power management), 'transferencia de torque' (torque transfer).
ترکیبهای رایج
عبارات رایج
— A single pulley. Used when referring to one instance of this object.
Necesitamos una polea para subir las maletas al ático.
— The pulley. Used when referring to a specific pulley already mentioned or understood in context.
¿Ves la polea en la esquina? Esa es la que debemos usar.
— Plural form, referring to multiple pulleys.
Los sistemas de poleas son muy eficientes para levantar cargas.
— A configuration of one or more pulleys working together.
El sistema de poleas del barco permitía ajustar las velas con gran precisión.
— A pulley used to transmit power, usually via a belt.
La polea de transmisión del motor estaba haciendo un ruido extraño.
— A pulley attached to a fixed support, used to change the direction of force.
La polea fija simplemente cambia la dirección de la fuerza.
— A pulley that moves with the load, providing mechanical advantage.
Una polea móvil reduce el esfuerzo necesario para levantar un objeto pesado.
— To employ or utilize a pulley for a task.
Vamos a usar una polea para bajar el piano por la ventana.
— The specific pulley used in a traditional well system.
El sonido de la polea del pozo era familiar para los habitantes del pueblo.
— Indicating something is equipped with or operates using pulleys.
El nuevo sistema de cortinas funciona con poleas ocultas.
اغلب اشتباه گرفته میشود با
'Rueda' is a general term for wheel. A 'polea' is a specific type of wheel used with a rope or cable for lifting or changing force direction. All pulleys are wheels, but not all wheels are pulleys.
'Engranaje' refers to a gear, which has teeth and meshes with other gears to transmit rotational force and speed. A 'polea' uses a rope or belt and does not have teeth in the same way.
'Carrete' is a spool or reel, primarily used for winding or storing things like thread or fishing line. A 'polea' is for guiding a rope or cable in a system.
اصطلاحات و عبارات
— To be unable to lift or move something easily; to require significant effort without mechanical aid. It implies a lack of a system or tool that would make the task easier.
Sin una grúa, mover esa estatua sería como no tener polea; necesitaríamos mucha gente.
Informal/Figurative— To set a mechanism in motion, or metaphorically, to initiate a process or action that will lead to a result, often involving a chain reaction.
El director dio cuerda a la polea con su anuncio, y pronto todos estaban trabajando en el nuevo proyecto.
Figurative— To be the central mechanism or facilitator of a situation or plan, the element that makes everything else work or move forward.
María es la polea del asunto; sin su organización, el evento no sería posible.
Figurative— Someone or something that is versatile and can be used for many different tasks or purposes, similar to how a pulley can be part of various systems.
Este nuevo software es como una polea para todo; sirve para editar videos, diseñar gráficos y hasta para organizar proyectos.
Figurative— To operate smoothly and efficiently, without friction or problems. It implies that all parts are working well together, much like a well-maintained pulley system.
Desde que contrataron al nuevo gerente, la oficina tiene la polea bien engrasada; todo funciona a la perfección.
Figurative— To be ineffective or useless because a crucial element is missing. A pulley without a rope cannot perform its function.
Intentar aprender un idioma sin practicar es como una polea sin cuerda; no te llevará a ninguna parte.
Figurative— A powerful force or person that drives progress or makes things happen. It suggests a fundamental element that enables significant change.
Algunos creen que la tecnología es la polea que mueve el mundo en el siglo XXI.
Figurative— To make fine adjustments to a system or plan to ensure it works correctly or efficiently. Similar to adjusting a rope on a pulley.
Tuvimos que ajustar la polea del presupuesto para que el proyecto fuera viable.
Figurative— Ensuring all components or elements of a system are in their correct place and functioning as intended. It emphasizes order and proper setup.
Para que la cadena de montaje funcione bien, necesitamos que cada polea esté en su sitio.
Figurative— A well-established or effectively implemented system or tool that performs its function reliably.
Esta nueva estrategia de marketing es una polea bien puesta; está generando excelentes resultados.
Figurativeبهراحتی اشتباه گرفته میشود
Both are round objects that rotate. A pulley is a specific type of wheel.
A 'rueda' is a general term for a wheel, used for transportation or general rotation. A 'polea' is a wheel with a groove designed specifically to guide a rope or cable, typically used in lifting or changing the direction of force.
Las ruedas del coche permiten que se mueva, pero la polea del motor ayuda a transmitir la potencia con una correa.
Both are mechanical components involved in transmitting motion.
An 'engranaje' (gear) has teeth that mesh with other gears to transmit torque and change speed. A 'polea' uses a rope or belt running in a groove to change the direction of force or gain mechanical advantage.
El engranaje del reloj hace girar las manecillas, mientras que la polea de la grúa levanta los materiales.
Both involve winding or managing a flexible line.
A 'carrete' (reel/spool) is primarily for winding and storing material like thread, film, or fishing line. A 'polea' is a wheel that guides a rope or cable in a system to lift or redirect force, not for storage.
El pescador usa un carrete para su sedal, pero el marinero usa una polea para ajustar la vela.
They are often used together.
A 'cuerda' (rope) is the flexible material that passes over a 'polea'. The 'polea' is the wheel mechanism that facilitates the use of the 'cuerda'. One is the line, the other is the guiding wheel.
La cuerda se desliza suavemente por la polea para subir el balde.
A pulley is often part of a larger system.
'Sistema' is a general term for a set of interacting or interdependent components forming an integrated whole. A 'polea' is a single component, while a 'sistema de poleas' is a system made of one or more pulleys working together.
Este es un sistema de poleas complejo, no solo una polea.
الگوهای جملهسازی
La <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> [verbo].
La polea ayuda.
Necesito una <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> [adjetivo].
Necesito una polea pequeña.
Usamos una <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> para [infinitivo].
Usamos una polea para subir la caja.
La <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> del [sustantivo] estaba [adjetivo].
La polea del pozo estaba vieja.
El sistema de <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>poleas</mark> [verbo] la [sustantivo].
El sistema de poleas levanta la carga.
Para [infinitivo], se necesita una <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> [adjetivo].
Para tensar la vela, se necesita una polea resistente.
La <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> [verbo] la [sustantivo] y [verbo] la [sustantivo].
La polea transmite la potencia y cambia la dirección de la fuerza.
Se [verbo] una <mark class='bg-emerald-200 dark:bg-emerald-800 px-0.5 rounded'>polea</mark> [adjetivo] para [infinitivo].
Se instaló una polea doble para aumentar la capacidad.
خانواده کلمه
اسمها
فعلها
مرتبط
نحوه استفاده
Common in contexts related to mechanics, construction, and physical tasks.
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Using masculine articles ('el', 'un') with 'polea'.
→
Using feminine articles ('la', 'una').
'Polea' is a feminine noun in Spanish. Therefore, it requires feminine articles and adjectives. For example, 'la polea' (the pulley) and 'una polea pequeña' (a small pulley).
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Pronouncing 'polea' with stress on the first syllable (PO-le-a).
→
Pronouncing 'polea' with stress on the second syllable (po-LE-a).
The correct pronunciation in Spanish places the stress on the second-to-last syllable when the word ends in a vowel (like 'a'), unless an accent mark indicates otherwise. So, it's po-LE-a.
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Using 'polea' to refer to any rotating wheel.
→
Using 'polea' only for wheels used with ropes/cables for lifting or changing force direction.
While a pulley is a type of wheel, the term 'polea' is specific. It refers to a wheel with a groove for a rope or cable. General wheels, like those on a car or bicycle, are called 'ruedas'.
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Confusing 'polea' with 'engranaje' (gear).
→
Distinguishing between a pulley (uses rope/belt) and a gear (has teeth).
A 'polea' works with a rope or belt, typically to change the direction of force or gain mechanical advantage. An 'engranaje' has teeth that mesh with other gears to transmit rotational power and change speed.
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Using the singular form 'polea' when referring to multiple pulleys.
→
Using the plural form 'poleas'.
When referring to more than one pulley, the plural form 'poleas' must be used. For example, 'Necesitamos dos poleas' (We need two pulleys).
نکات
Visualize the Action
When you see or hear 'polea', picture a wheel with a rope going over it, making it easier to pull something up. This visual connection to the word's function is very effective for recall.
Stress the Second Syllable
Remember to pronounce 'polea' with the stress on the second syllable: po-LE-a. This helps with clarity when speaking and understanding when listening.
Feminine Noun Alert
Always remember that 'polea' is a feminine noun. Use feminine articles ('la', 'una') and adjectives ('grande', 'pequeña', 'vieja') to agree with it.
Listen for Context Clues
Pay attention to surrounding words when you encounter 'polea'. Words like 'levantar', 'subir', 'cuerda', 'máquina', or 'construcción' will confirm you're dealing with a pulley.
Specific vs. General
Distinguish 'polea' from 'rueda'. While a pulley is a type of wheel, it has a specific function with ropes/cables. Don't use 'polea' for just any rotating wheel.
Practice with Systems
Learn about 'sistema de poleas' (pulley systems). Understanding how multiple pulleys work together will deepen your comprehension of the term 'polea' and its applications.
Synonym Awareness
Be aware of related terms like 'polea de transmisión' or 'polea de elevación' which specify the pulley's role. This adds precision to your vocabulary.
Real-World Connection
Look for examples of pulleys in your environment – on clotheslines, window blinds, or even in gym equipment. Connecting the word to physical objects aids memorization.
Plural Form
Remember the plural form is 'poleas'. This is useful when discussing multiple pulleys or pulley systems.
Root Meaning
The word comes from Latin 'pullicare' (to draw water). This connection to wells and lifting can be a helpful mnemonic.
حفظ کنید
روش یادسپاری
Imagine a 'pull-ee' (play on 'pulley') helping you pull a heavy bucket of water up from a well. The 'pull-ee' is the pulley system, making the hard work easier.
تداعی تصویری
Picture a simple well with a rope going over a round wheel (the pulley) attached to a wooden frame. The wheel has a groove for the rope to sit in, and it's connected to a crank that you turn to pull the bucket up. Focus on the wheel's grooved edge and its function in guiding the rope.
شبکه واژگان
چالش
Try to draw a simple pulley system and label its parts. Then, write a short sentence describing how it helps lift an object. This active recall will solidify the concept and the word 'polea'.
ریشه کلمه
The word 'polea' comes from the Latin word 'pullicare', which means 'to draw water'. This likely relates to one of the earliest and most common uses of pulleys: in systems for lifting water from wells.
معنای اصلی: To draw water.
Indo-European > Italic > Latin > Romance > Spanishبافت فرهنگی
The term 'polea' is neutral and technical, with no specific cultural sensitivities attached.
In English, the word is 'pulley'. Both 'polea' and 'pulley' refer to the same mechanical device and share a common root related to lifting or drawing.
تمرین در زندگی واقعی
موقعیتهای واقعی
Construction and heavy lifting
- polea de elevación
- sistema de poleas
- subir materiales
- grúa
- levantar cargas pesadas
Automotive and machinery repair
- polea de transmisión
- polea del motor
- correa y polea
- reemplazar la polea
- rueda del ventilador
Nautical and sailing
- polea en el mástil
- manejo de cabos
- ajustar velas
- aparejo
- barco
Household and DIY
- polea del pozo
- sistema de tendedero
- cortina con polea
- subir cosas al ático
- herramienta
Physics and engineering education
- ventaja mecánica
- máquina simple
- fuerza y movimiento
- principio de Arquímedes
- eficiencia de la polea
Gym and exercise equipment
- máquina de pesas
- resistencia
- entrenamiento
- gimnasio
- cable y polea
شروعکنندههای مکالمه
"¿Has usado alguna vez una polea para levantar algo pesado?"
"¿En qué situaciones crees que una polea es más útil?"
"Si tuvieras que diseñar una máquina simple, ¿qué usarías, una polea o una palanca?"
"¿Dónde has visto la polea más interesante o inusual?"
"¿Cómo crees que las poleas ayudaron a construir las pirámides?"
موضوعات نگارش
Describe un momento en el que una polea te hizo la vida más fácil. ¿Qué estabas haciendo y cómo funcionaba la polea?
Imagina que eres un ingeniero diseñando un nuevo sistema de poleas para un propósito específico. ¿Qué tipo de polea usarías y por qué?
Piensa en un objeto cotidiano que podría beneficiarse de tener un mecanismo de polea. ¿Cómo lo integrarías?
Reflexiona sobre la importancia de las máquinas simples como la polea en nuestra vida diaria, desde la construcción hasta el hogar.
Escribe un breve cuento donde una polea sea un personaje clave o un elemento central de la trama.
سوالات متداول
10 سوالThe main function of a pulley is to change the direction of a force or to gain mechanical advantage, making it easier to lift or move heavy objects. It does this by using a wheel with a groove that guides a rope or cable.
'Polea' is a feminine noun in Spanish. Therefore, you should use feminine articles and adjectives with it, such as 'la polea', 'una polea', 'la polea grande', 'una polea fuerte'.
No, 'polea' specifically refers to a wheel designed to work with a rope or cable for lifting or changing the direction of force. You would not call a car wheel or a bicycle wheel a 'polea'.
The two basic types are fixed pulleys, which remain stationary and only change the direction of force, and movable pulleys, which move with the load and provide mechanical advantage by reducing the effort needed.
You'll hear 'polea' in contexts like construction sites ('polea de elevación'), workshops ('polea de transmisión'), garages ('polea del motor'), and descriptions of simple machines or mechanical devices.
A 'rueda' is a general term for any wheel, while a 'polea' is a specific type of wheel with a groove for a rope or cable, used for lifting or redirecting force. All pulleys are wheels, but not all wheels are pulleys.
Pulleys provide mechanical advantage by changing the direction of force, making it easier to pull downwards to lift something upwards, or by using multiple pulleys in a system to distribute the load, requiring less force to move it.
Yes, 'polea' is a common and practical word in Spanish, especially in technical, vocational, and everyday contexts involving physical tasks and simple machines.
Related words include 'cuerda' (rope), 'cable' (cable), 'sistema' (system), 'levantar' (to lift), 'fuerza' (force), and 'eje' (axle).
Yes, 'polea' can be used figuratively to describe a mechanism or a key element that makes things happen or facilitates a process, similar to how a literal pulley makes tasks easier.
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Summary
A 'polea' is a wheel with a groove designed to work with a rope or cable, primarily used to change the direction of force or to gain mechanical advantage when lifting or moving objects. It's a fundamental simple machine found in many applications, from construction to sailing.
- A pulley is a wheel that uses a rope to lift or move things.
- It helps make heavy tasks easier by changing force direction.
- Found in cranes, wells, and even window blinds.
- Key component in mechanical systems for lifting and power.
Visualize the Action
When you see or hear 'polea', picture a wheel with a rope going over it, making it easier to pull something up. This visual connection to the word's function is very effective for recall.
Stress the Second Syllable
Remember to pronounce 'polea' with the stress on the second syllable: po-LE-a. This helps with clarity when speaking and understanding when listening.
Feminine Noun Alert
Always remember that 'polea' is a feminine noun. Use feminine articles ('la', 'una') and adjectives ('grande', 'pequeña', 'vieja') to agree with it.
Listen for Context Clues
Pay attention to surrounding words when you encounter 'polea'. Words like 'levantar', 'subir', 'cuerda', 'máquina', or 'construcción' will confirm you're dealing with a pulley.
محتوای مرتبط
واژههای بیشتر tools
abrazadera
B1برای محکم کردن شیلنگ به یک بست نیاز دارید.
adaptador
A2آداپتور وسیلهای برای اتصال دو قطعه با اندازهها یا انواع مختلف است.
adecuadamente
A2به طور مناسب یا به درستی. شما باید به درستی لباس بپوشید.
adecuado
A2مناسب یا درخور برای یک هدف یا موقعیت خاص. این کلمه برای توصیف چیزی که دقیقاً نیازها را برآورده می کند عالی است.
adhesivo
A2ماده ای که برای چسباندن اشیا به هم استفاده می شود. چسب.
afilado
A2تیز، دارای لبه یا نوک برنده. 'چاقوی تیز.' 'هوش سرشار و تیز.'
aflojar
A2شل کردن چیزی یا کاهش فشار. 'باید پیچ را کمی شل (aflojar) کنید.'
alambre
A2سیم یک رشته فلزی نازک و منعطف است که در حصارکشی و کارهای فنی استفاده میشود.
alicates
A2انبردستی که برای گرفتن یا بریدن استفاده می شود. او از انبردست برای تعمیر وسیله استفاده کرد.
amoladora
B2فرز یک ابزار برقی است که برای برش یا سایش مواد سخت مانند فلز یا سنگ استفاده میشود.
