| A | B |
| Load | the weight supported by a structure or part. |
| Stall | the unexpected or unwanted stopping of an engine or motor. |
| Current | the flow of an electric charge through a medium. |
| Voltage | electromotive force or potential difference expressed in volts. |
| DC Motor | an electric motor that runs on direct current (DC) electricity. |
| Actuator | a servomechanism that supplies and transmits a measured amount of energy for the operation of another mechanism or system. |
| Velocity | the rapidity of motion or operation; swiftness; speed. |
| Torque | a spinning force. Torque is described by the magnitude of the force multiplied by the distance it is from the center of rotation (Force x Distance = Torque). Torque is measured in units of force*distance, such as Inch-Pounds of Newton-Meters. |
| Power | the rate at which work is performed and energy is converted. |
| Work | the exertion or effort directed to produce or accomplish something. |
| Force | an influence that causes a change of movement, direction or shape. Force is measured in units such as Pounds or Newtons. |
| Acceleration | A change in speed over a period of time is described as an acceleration; the higher the acceleration the faster the change in speed. |
| Rotational Speed | refers to how fast something is moving in a circle. It is measured in units of angular-distance per time (i.e. degree per second) or rotational cycles per time (i.e. revolutions per minute.) When someone talks about “RPM” they are referencing rotational speed (i.e. when talking about the RPM of a car engine, one is describing how fast the engine in spinning.) |
| Speed | a measure of how fast an object is moving. It describes a change in position with time (or more simply put, how far an object will travel over a given period of time.) This measure is given in units of distance per time (i.e. miles per hour, or feet per second). |
| Mechanics | the branch of physics that deals with the action of forces on bodies and with motion, comprised of kinetics, statics, and kinematics. |
| Engineering | the application of practical & scientific knowledge to a methodical problem solving process. |
| Methodical | the orderly or systematic performance of a task. |