Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.

Learners study an animated block diagram that describes the function of each element in a closed-loop system used in industrial automation.

Learners read an explanation of how the Magnetron Ignition System uses a solid state switching component, a step-up transformer, and magnetism to provide a high voltage spark in a one-cylinder combustion engine.

In this animated activity, learners observe how pressure values throughout a hydraulic system are developed based on pump pressure and the size of the load.

In this highly interactive and animated object, learners examine the VAT-40 battery starting and charging system tester and study how the tester is used to diagnose vehicle starting system problems. This object has audio.

Learners examine the factors that contribute to the delays in the response time throughout a closed-loop system.

In this animated and interactive object, learners examine a heat exchanger as an example of an automated closed-loop system.

Learners study two diagrams of the lymphatic system and then test their knowledge in drag-and-drop exercises.

Learners examine the function and wiring of the sympathetic nervous system.

Learners read a description of the wiring configuration of a residential Edison Wire System, which consists of a transformer secondary circuit. The circuit supplies two 115-volt sources and one 230-volt source.

In this animated object, learners examine the operation of a closed-loop system that maintains the speed of a conveyer belt as heavy boxes are placed or removed.

Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.

This objects reviews the Five "S" manufacturing system and helps learners to remember the process.

In this learning activity you'll examine how computers operate in a peer-to-peer network operating system.

Students view the parts and movements of a combustion engine in this animated activity. Each part is described.

In this learning activity you'll practice converting from one metric unit to another.

Learners identify nine glands in a matching exercise.

In this learning object, students will learn about the attachment

process of specific sugars to red cell membranes and how the sugars

determine ABO antigenic activity.

In this interactive object, learners read about the differences between push and pull manufacturing systems. A brief quiz completes the activity.

Learners examine the operation of the on-off control mode using a home heating example. A short quiz completes the activity.