Torque and Equilibrium

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 pivot point (lever arm). Formula: \( \tau = F \times r \) where \( \tau \) is torque, \( F \) is force, and \( r \) is the distance from the pivot.

Front

How is torque calculated?

Back

Torque (\( \tau \)) is calculated using the formula: \( \tau = F \times r \), where \( F \) is the force applied and \( r \) is the distance from the pivot point.

Front

What is the unit of torque?

Back

The unit of torque is the Newton-meter (Nm).

Front

What is the condition for maximum torque?

Back

The condition for maximum torque occurs when the angle (\( \theta \)) between the force vector and the lever arm is 90 degrees.

Front

What happens when an object experiences a nonzero net torque?

Back

When an object experiences a nonzero net torque, it is in a state of rotation.

Front

What is static equilibrium?

Back

Static equilibrium occurs when an object is at rest and the net force and net torque acting on it are both zero.

Front

What is dynamic equilibrium?

Back

Dynamic equilibrium occurs when an object is moving at a constant velocity and the net force and net torque acting on it are both zero.

Front

How do you maintain equilibrium on a seesaw?

Back

To maintain equilibrium on a seesaw, the torques produced by the weights on either side must be equal. This can be expressed as: \( F_1 \times d_1 = F_2 \times d_2 \) where \( F \) is the force (weight) and \( d \) is the distance from the pivot.

Front

What is the lever arm in torque calculations?

Back

The lever arm is the perpendicular distance from the pivot point to the line of action of the force applied.

Front

What is the relationship between force, distance, and torque?

Back

The relationship is direct: increasing either the force applied or the distance from the pivot increases the torque.