Learners study an animation of a spring-and diaphragm actuator controlling the opening of a flow valve.
RPM of AC Motors
By Terry Bartelt, Terry Fleischman
Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.
Fundamentals of a DC Motor
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.
Strength of Materials: The Centroid of a Circle
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a circle.
Voltage Drops in a Series Circuit
By Terry Bartelt
Students study the concept that the voltage drop across a series circuit resistor is proportional to its resistance. They then complete a brief quiz.
AC Current Flow
In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.
The Anatomy of the Heart
By Wendy Dusek
In this animated and interactive object, learners identify the valves and chambers of the heart.
In this learning activity you'll examine how routers transfer data between local area networks and the Internet.
Learners observe animations showing how data is converted between serial and parallel flow.
Hydraulic Directional Control Valves
In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.
Complex - Respiration
Test your knowledge of Respiration Trivia!
Cash Flow Forecasting
Get correct answers for a chance at the board. Can you get the highest score?
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Give your new group a name.