This physics video tutorial provides a basic introduction into torque which is also known as moment of force. Torque is the product of force and lever arm also known as moment arm. The lever arm is the perpendicular distance between the axis of rotation and the line of action of the force. Torque is the rotational equivalent of force. Positive torque values produce counterclockwise rotation and negative torques produce clockwise rotation. This video contains plenty of examples and practice problems of torques as it relates to doors, seesaws, and shovels. It discusses how to calculate the mechanical advantage of simple machines like seesaws and shovels.

Intro to Rotational Motion:
   • Rotational Motion Physics, Basic Intr...  

Angular Velocity:
   • Angular Velocity Physics Problems, Li...  

Angular Acceleration:
   • Angular Acceleration Physics Problems...  

Rotational Kinematics:
   • Rotational Kinematics Physics Problem...  

Intro to Inertia:
   • Inertia - Basic Introduction, Torque,...  

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Parallel Axis Theorem:
   • Parallel Axis Theorem & Moment of Ine...  

Rotational Dynamics:
   • Rotational Dynamics - Basic Introduction  

Rotational Kinetic Energy:
   • Rotational Kinetic Energy and Moment ...  

Rotational Power, Work, & Energy:
   • Rotational Power, Work, Energy, Torqu...  

Work Done By a Constant Torque:
   • Work Done By a Constant Torque - Powe...  

Angular Momentum & Torque:
   • Angular Momentum - Basic Introduction...  

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What Is Angular Momentum?
   • What Is Angular Momentum?  

Angular Momentum Problems:
   • Angular Momentum Physics Practice Pro...  

Angular Impulse:
   • Angular Impulse  

Rotational Motion - Review:
   • Torque, Moment of Inertia, Rotational...  

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