Torque

Front

What is torque?

Back

Torque is a measure of the rotational force applied to an object, calculated as the product of the force and the distance from the axis of rotation (lever arm).

Front

How is torque calculated?

Back

Torque (τ) is calculated using the formula τ = F × r × sin(θ), where F is the force applied, r is the distance from the axis of rotation, and θ is the angle between the force vector and the lever arm.

Front

What units are used to measure torque?

Back

Torque is measured in Newton-meters (Nm) in the SI system.

Front

What is the relationship between force and torque?

Back

Torque is directly proportional to the force applied; increasing the force increases the torque, provided the distance from the axis of rotation remains constant.

Front

What is a lever arm in the context of torque?

Back

The lever arm is the perpendicular distance from the axis of rotation to the line of action of the force.

Front

What happens to torque if the angle of force application is 90 degrees?

Back

If the angle of force application is 90 degrees, the torque is maximized because sin(90°) = 1, making the torque equal to the product of the force and the lever arm.

Front

What is the effect of increasing the distance from the axis of rotation on torque?

Back

Increasing the distance from the axis of rotation (lever arm) increases the torque for a given force.

Front

What does it mean for an object to experience a net torque?

Back

When an object experiences a net torque, it means that the sum of all torques acting on it is not zero, resulting in angular acceleration and rotation.

Front

What is the significance of the direction of torque?

Back

The direction of torque determines the direction of rotation; counterclockwise torque is considered positive, while clockwise torque is negative.

Front

How does torque relate to rotational equilibrium?

Back

An object is in rotational equilibrium when the net torque acting on it is zero, meaning it is either at rest or rotating at a constant angular velocity.