Rotational Dynamics with Two Motions definitions Flashcards
Rotational Dynamics with Two Motions definitions
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Torque
A measure of the force that can cause an object to rotate about an axis. Angular Acceleration
The rate of change of angular velocity over time. Linear Motion
Movement in a straight line. Rotational Motion
Movement of an object around a central axis. Pulley
A wheel on an axle designed to support movement and change of direction of a taut cable. Axis of Rotation
The line around which an object rotates. Sign Convention
A consistent method of assigning positive and negative signs to variables in equations. Tension
The force transmitted through a string, rope, cable or wire when it is pulled tight by forces acting from opposite ends. Friction
The resistance that one surface or object encounters when moving over another. Inertia
The resistance of any physical object to any change in its velocity. Newton's Second Law
The principle stating that the force acting on an object is equal to the mass of that object times its acceleration. Yo-yo
A toy consisting of an axle connected to two disks, and a string looped around the axle. Cylinder
A three-dimensional geometric figure with parallel circular bases connected by a curved surface. Velocity
The speed of something in a given direction. Omega
The symbol commonly used to represent angular velocity.