What is the Difference Between Torque and Torsion?
🆚 Go to Comparative Table 🆚The main difference between torque and torsion lies in their definitions and the forces involved:
- Torque is a measure of the rotational force applied to an object, often expressed in units such as newton-meters or foot-pounds. It is a measureable concept that depends on the magnitude, directions, and separation of the forces applied.
- Torsion refers to the twist formed in a body due to a torque. It is a concept that is mathematically projected by the shear stress or the twist angle. Torsion depends on the torque, the type of material, and the shape of the object.
In summary:
- Torque is a measureable concept that describes the rotational force applied to an object.
- Torsion is a concept that represents the twist formed in a body due to a torque and depends on the torque, material type, and object shape.
- Torque requires at least one force, whereas torsion requires at least two forces to occur.
Comparative Table: Torque vs Torsion
Here is a table comparing torque and torsion:
| Feature | Torque | Torsion |
|---|---|---|
| Description | Torque is a force that has the ability to create an angular acceleration. | Torsion is a twisting effect produced due to torque, where different parts of an object undergo different angular displacements. |
| Unit of Measurement | Nm (Newton-meter) | Radians or degrees |
| Direction | Torque is a vector with a direction determined by the cross product of force and distance, perpendicular to the plane of rotation. | Torsion is the angle of twist experienced by an object due to applied torque. |
| Application | Torque is used to create angular acceleration and is measured in devices like accelerometers and gyroscopes. | Torsion is experienced in everyday activities like tightening a screw or twisting a cloth. |
| Relationship | Torque is related to torsion as it is the force that causes the twisting effect in an object. The amount of twisting depends on the torsional rigidity of the system. | Torque and torsion have a linear relationship, where the twist angle and the torque are related by the torsional rigidity as the proportionality constant. |
In summary, torque is a rotational force applied to an object, while torsion refers to the resulting twisting deformation in a material.
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