Resultant Torque and Equilibrium

These flashcards cover key concepts related to resultant torque, equilibrium, mechanical advantage, and the related muscular functions.

Resultant Torque

The total torque acting on an object, calculated by summing individual torques.

Torque

A measure of the rotational force acting on an object.

Moment Arm

The perpendicular distance from the line of action of a force to the axis of rotation.

Positive Torque

Torque that causes counterclockwise rotation.

Negative Torque

Torque that causes clockwise rotation.

Equilibrium

A state where the resultant torque is zero, resulting in no rotation.

Mechanical Advantage

The ratio of the moment arms of muscle force to external force, indicating how much a muscle can amplify the force exerted.

Flexing

The action of bending a joint, typically resulting in a decrease in the angle between bones.

Extending

The action of straightening a joint, typically resulting in an increase in the angle between bones.

Biceps Brachii

A muscle in the upper arm that causes elbow flexion.

Triceps Brachii

A muscle in the back of the upper arm that causes elbow extension.