# Torque vs. Torsion: What's the Difference?

Edited by Huma Saeed || By Sawaira Riaz || Published on January 8, 2024
Torque is a measure of the force causing an object to rotate, whereas torsion refers to the action of twisting or the state of being twisted, especially of one end of an object relative to the other.

## Key Differences

Torque is a concept in physics that describes the rotational equivalent of linear force, specifically the force that causes an object to rotate about an axis. On the other hand, torsion is the stress or strain produced in a body when it is twisted around its axis.
Huma Saeed
Jan 08, 2024
The magnitude of torque is calculated as the product of force and the distance from the rotation axis (lever arm), and it's a vector quantity. In contrast, torsion refers to the action or the result of twisting, often involving the application of torque, but it focuses on the effect of the twisting on the material or object.
Sawaira Riaz
Jan 08, 2024
In engineering, torque is crucial in designing machinery and vehicles, as it determines how effectively a force causes rotational motion. Torsion, however, is a factor in material science and structural engineering, as it deals with the deformation and stress on materials due to twisting forces.
Sawaira Riaz
Jan 08, 2024
Torque is a fundamental aspect in dynamics, determining how fast an object will spin or stop spinning under a given force. Torsion is more about the internal reaction of materials when subjected to torque, affecting their mechanical properties.
Sawaira Riaz
Jan 08, 2024
Torque and torsion are related, as torque can cause torsion, they address different aspects: torque is about the cause of rotation, and torsion is about the effect of twisting forces on objects or materials.
Sawaira Riaz
Jan 08, 2024

## Comparison Chart

### Definition

Force causing an object to rotate
Twisting of an object by applied torque
Sawaira Riaz
Jan 08, 2024

### Focus

Measure of rotational force
Stress or strain due to twisting
Huma Saeed
Jan 08, 2024

### Calculation

Product of force and lever arm
Degree of twist and material properties
Sawaira Riaz
Jan 08, 2024

### Role in Engineering

Essential in machinery and vehicle design
Important in material science and structural integrity
Harlon Moss
Jan 08, 2024

### Related to

Dynamics and rotational motion
Mechanical properties and deformation of materials
Janet White
Jan 08, 2024

## Torque and Torsion Definitions

#### Torque

Rotational force applied to an object.
The engine's torque determines the car's acceleration.
Sawaira Riaz
Dec 16, 2023

#### Torsion

A measure of how much an object is twisted.
The torsion in the spring controls its recoil.
Aimie Carlson
Dec 16, 2023

#### Torque

The product of force and distance from the axis of rotation.
Engineers calculate torque to design efficient motors.
Sawaira Riaz
Dec 16, 2023

#### Torsion

The action of twisting or the state of being twisted.
The torsion on the bridge's cables is carefully monitored.
Huma Saeed
Dec 16, 2023

#### Torque

Measure of the tendency of a force to rotate an object about an axis.
Higher torque in a drill means more turning power.
Sawaira Riaz
Dec 16, 2023

#### Torsion

Stress or strain on materials due to twisting forces.
Torsion tests help determine the strength of metal rods.
Janet White
Dec 16, 2023

#### Torque

A twisting force that causes rotation.
The torque applied to the bolt secured it tightly.
Janet White
Dec 16, 2023

#### Torsion

The twist produced in an object by applying torque.
Torsion in the shaft was caused by uneven rotational forces.
Janet White
Dec 16, 2023

#### Torque

The measure of a force's tendency to produce torsion or rotation about an axis, equal to the product of the force vector and the radius vector from the axis of rotation to the point of application of the force; the moment of a force.
Sawaira Riaz
Dec 08, 2023

#### Torsion

The reaction of a material when subjected to torque.
Measuring torsion is vital in assessing material durability.
Harlon Moss
Dec 16, 2023

#### Torque

A turning or twisting force.
Sawaira Riaz
Dec 08, 2023

#### Torsion

The act of twisting or turning.
Sawaira Riaz
Dec 08, 2023

#### Torque

A collar, a necklace, or an armband made of a strip of twisted metal, worn by the ancient Celts and Germans.
Sawaira Riaz
Dec 08, 2023

#### Torsion

The condition of being twisted or turned.
Sawaira Riaz
Dec 08, 2023

#### Torque

To impart torque to.
Sawaira Riaz
Dec 08, 2023

#### Torsion

The stress or deformation caused when one end of an object is twisted in one direction and the other end is held motionless or twisted in the opposite direction.
Sawaira Riaz
Dec 08, 2023

#### Torque

A rotational or twisting effect of a force; a moment of force, defined for measurement purposes as an equivalent straight line force multiplied by the distance from the axis of rotation (SI unit newton metre or Nm; imperial unit [https://en.wikipedia.org/wiki/Pound-foot_(torque) pound-foot] or lb·ft, not to be confused with the foot pound-force, commonly "foot-pound", a unit of work or energy)
Sawaira Riaz
Dec 08, 2023

#### Torsion

The act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction.
Sawaira Riaz
Dec 08, 2023

#### Torque

A tightly braided necklace or collar, often made of metal, worn by various early European peoples.
Sawaira Riaz
Dec 08, 2023

#### Torsion

(mechanics) That force with which a thread, wire, or rod of any material returns, or tends to return, to a state of rest after it has been twisted; torsibility.
Sawaira Riaz
Dec 08, 2023

#### Torque

To make something rotate about an axis by imparting torque to it.
Sawaira Riaz
Dec 08, 2023

#### Torsion

(surgery) The stopping of arterial haemorrhage in certain cases, by twisting the cut end of the artery.
Sawaira Riaz
Dec 08, 2023

#### Torque

A collar or neck chain, usually twisted, especially as worn by ancient barbaric nations, as the Gauls, Germans, and Britons.
Sawaira Riaz
Dec 08, 2023

#### Torsion

The act of turning or twisting, or the state of being twisted; the twisting or wrenching of a body by the exertion of a lateral force tending to turn one end or part of it about a longitudinal axis, while the other is held fast or turned in the opposite direction.
Sawaira Riaz
Dec 08, 2023

#### Torque

That which tends to produce torsion; a couple of forces.
Sawaira Riaz
Dec 08, 2023

#### Torsion

That force with which a thread, wire, or rod of any material, returns, or tends to return, to a state of rest after it has been twisted; torsibility.
Sawaira Riaz
Dec 08, 2023

#### Torque

A turning or twisting; tendency to turn, or cause to turn, about an axis.
Sawaira Riaz
Dec 08, 2023

#### Torsion

A tortuous and twisted shape or position;
They built a tree house in the tortuosities of its boughs
The acrobat performed incredible contortions
Sawaira Riaz
Dec 08, 2023

A twisting force
Sawaira Riaz
Dec 08, 2023

A twisting force
Sawaira Riaz
Dec 08, 2023

#### Torque

A vector quantity representing rotational effect.
Adjusting torque is crucial for balancing rotating systems.
Harlon Moss
Dec 16, 2023

## FAQs

#### What does torque measure in a car engine?

It measures the engine’s rotational force.
Sawaira Riaz
Jan 08, 2024

#### Is high torque always desirable in vehicles?

It's desirable for better acceleration and pulling power.
Janet White
Jan 08, 2024

#### What role does torsion play in mechanical springs?

It determines the spring's ability to recoil.
Janet White
Jan 08, 2024

#### How does torsion affect building structures?

It impacts their integrity under twisting forces.
Huma Saeed
Jan 08, 2024

#### Can torque exist without causing torsion?

Yes, if there's no resistance to the rotational force.
Sawaira Riaz
Jan 08, 2024

#### Does increasing torque always increase speed?

Not always, as it depends on other factors like resistance.
Harlon Moss
Jan 08, 2024

#### How do engineers calculate torque?

By multiplying force by the lever arm distance.
Sawaira Riaz
Jan 08, 2024

#### What happens when a material undergoes too much torsion?

It can lead to material failure or permanent deformation.
Sawaira Riaz
Jan 08, 2024

#### Does torsion only apply to solid materials?

Primarily, though it can be considered in complex systems too.
Sawaira Riaz
Jan 08, 2024

#### Is torque important in bicycle design?

Yes, particularly in gearing and pedal efficiency.
Sawaira Riaz
Jan 08, 2024

#### What is a torsion bar?

A bar resisting torsion, used in vehicle suspension systems.
Harlon Moss
Jan 08, 2024

#### Can torque affect the steering of a car?

Yes, especially in high-powered vehicles.
Harlon Moss
Jan 08, 2024

#### How is torsion measured in materials?

Through torsion testing to assess material strength and flexibility.
Sawaira Riaz
Jan 08, 2024

#### How does torsion impact the design of a shaft?

It influences the shaft’s diameter and material to prevent twisting.
Harlon Moss
Jan 08, 2024

#### What is the unit of torque?

It's commonly measured in Newton-meters (Nm).
Sawaira Riaz
Jan 08, 2024

#### Can electric motors generate high torque?

Yes, they can be designed for high-torque applications.
Harlon Moss
Jan 08, 2024

#### Can torsion be beneficial in some applications?

Yes, like in torsion bars for suspension systems.
Harlon Moss
Jan 08, 2024

#### How does torque relate to rotational equilibrium?

It must be balanced for rotational equilibrium.
Aimie Carlson
Jan 08, 2024

#### Is torsion a concern in aircraft design?

Yes, particularly in the design of propellers and wings.
Sawaira Riaz
Jan 08, 2024

#### Is torsion important in the design of bridges?

Absolutely, particularly for cable-stayed and suspension bridges.
Janet White
Jan 08, 2024