In this animated and interactive object, learners examine the formula for horsepower and work practice problems.

Learners examine the internal parts of a DC electrical motor and then text their knowledge in a drag-and-drop exercise.

Learners study the interaction between the conductors of the stator and the armature inside a DC motor, which causes the shaft to rotate. A short quiz completes the activity.

Learners examine the operation of a DC Shunt motor and its characteristics. A quiz completes the activity.

Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.

In this animated activity, learners study how the magnetic field of an armature can distort the DC motor's main magnetic field. A brief quiz completes the object.

In this animated object, learners examine different types of pneumatic actuators, cylinders, and motors.

Learners use the National Electrical Code to determine the size of a motor overload protection device.

Learners study animation showing the operation of cumulative and differential DC compound motors. A short quiz completes the activity.

In this animated object, learners study how the internal parts of an AC synchronous motor interact with magnetic fields to cause rotation. A short quiz completes the activity.

In this animated object, learners study the rotation of the magnetic stator field of an AC motor and how it interacts with the armature to cause rotation. A short quiz completes the activity.

Learners examine the wiring of the primary components of the three types of DC motors, series, shunt, and compound. The operational characteristics of each type of motor are described. A quiz completes the activity.

Learners study animation showing the operation of an AC wound-rotor motor with its external starting resistors. A short quiz completes the activity.

In this animated activity, learners study how stator poles create a rotating field in a three-phase AC motor as a three-phase AC voltage is applied.

The learner views animation showing how a DC motor is wired and its operational characteristics. A short quiz completes the activity.

Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.

In this animated activity, learners examine the operation of a dynamic braking circuit used to quickly stop a motor.

Learners study how a DC motor generates counterelectromotive force. A short quiz completes the object.

Students read an explanation of reactive power in a power distribution system involving motors, generators and transformers. A brief quiz completes the activity.

Students view a graphical explanation of how the motor condition (unloaded, 50 percent loaded, fully loaded) affects the phase between voltage and current, the current draw from the AC supply, the amount of power consumed, and the power factor.