Small Pulley (Copicoll) for Physics Experiment

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৳650

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Uses: Directional Change , Force Multiplier

Product SKU: 4HV9423wF5

                        Small Pulley (Copicoll) for Physics Experiment


Description :
In a physics laboratory setting, a small pulley—often referred to as a Copicoll—is a simple machine consisting of a grooved wheel mounted on an axle or shaft. The wheel is typically made of lightweight, low-friction materials like hardened plastic or aluminum to ensure that the experimental data remains as accurate as possible. This wheel is supported by a frame, or "sheave," which can be attached to a lab stand or left movable. A string, cord, or cable runs along the groove of the wheel, which serves to keep the cord in place while it rotates. Its primary design goal is to minimize rotational inertia and friction, allowing students and researchers to study the relationship between force, mass, and acceleration without significant energy loss to the pulley system itself.

Uses :

  1. Changing Force Direction: It allows the application of force in a different direction than the resulting motion, such as pulling horizontally to lift a mass vertically.
  2. Creating Mechanical Advantage: When used in a movable configuration or a block-and-tackle system, it reduces the input effort required to move a heavy load.

  3. Studying Tension: It provides a pivot point to demonstrate that tension ($T$) remains constant throughout a single string, assuming the pulley is "ideal" (frictionless and massless).

  4. Investigating Newton’s Second Law: It is a core component of the Atwood Machine, where two different masses are suspended to measure the acceleration due to gravity ($g$).

  5. Vector Resolution: On a force table, pulleys are used to align hanging weights at specific angles to study the equilibrium of forces and vector addition.

  6. Measuring Work and Energy: It facilitates experiments on inclined planes, connecting a cart on a ramp to a hanging mass to calculate potential and kinetic energy transitions.


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  • ✔️ High-quality metal pulley wheel for durability
  • ✔️ Smooth rotating wheel ensures low-friction performance
  • ✔️ Furthermore, a strong hook allows easy suspension
  • ✔️ Compact and lightweight design for easy handling
  • ✔️ Ideal for demonstrating force and motion principles
  • ✔️ Suitable for school, college, and university labs

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