# Shared Flashcard Set

## Details

Dynamics: Particle Motion
This set of cards covers the definitions of terminolgy used in Engineering Mechanics: Dynamics covering the topic of particle kinematics (motion)
27
Engineering
01/24/2022

Term
 acceleration
Definition
 the time rate of change of velocity of a body
Term
 angular acceleration
Definition
 the time rate of change of angular velocity with its ± sign from the right-hand rule
Term
 angular acceleration
Definition
 how quickly or slowly the rate of rotation changes
Term
 angular velocity
Definition
 the time rate of change of angular position with its ± sign from the right-hand rule
Term
 curvilinear motion
Definition
 the motion of a moving particle along a non-linear, or curving, path
Term
 dynamics
Definition
 the study of how objects move, both independent of forces and under the influence of forces
Term
 kinematics
Definition
 the study of particle or rigid body motion relating their position, velocity, and acceleration
Term
 linear motion
Definition
 movement along a straight path
Term
 normal acceleration
Definition
 the time rate of change of a particle's velocity **direction** that is directed toward the center of curvature
Term
Definition
 the time rate of change of radial velocity which is parallel to the position vector r
Term
Definition
 the change in speed of a particle is getting closer to or further away from the origin of the axis system
Term
 rotation
Definition
 the turning movement of an object around a point
Term
 transverse acceleration
Definition
 the linear acceleration caused by rotation of a point around a fixed axis which lies perpendicular to the position vector r
Term
 linear velocity
Definition
 the time rate of change of distance along a path
Term
 tangential acceleration
Definition
 the time rate of change of an object's velocity magnitude along it's path
Term
 angular position
Definition
 the angle from a datum measured in the positive right-hand rule direction
Term
 right-hand rule
Definition
 the sign convention to determine the ± sign on cross products and rotational motion
Term
Definition
 radius of a circle fit to the current position of a particle on a curved path
Term
 tangential axis
Definition
 reference axis pointing in the direction of a particle's current velocity
Term
 normal axis
Definition
 reference axis pointing towards the particle's current center of curvature
Term
Definition
 reference axis pointing from a reference point through the particles current position
Term
 transverse axis
Definition
 reference axis pointing from the particle and in the direction of an increasing angular position θ
Term
 normal acceleration
Definition
 always zero if the particle is moving along a straight path
Term
 absolute velocity
Definition
 the velocity with respect to a non-moving reference point
Term
 relative velocity
Definition
 the velocity relative to a moving body or reference point
Term
 absolute position
Definition
 the location of a particle with respect to a non-moving reference point
Term
 relative position
Definition
 the location of a particle relative to a moving body or reference point
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