In this learning activity, you'll watch an animated explanation of the terms class and object as used by computer programmers, and then contrast the differences.

In this animated object, students view an explanation of how current, voltage, and the charge on a capacitor of a series RC circuit change during five time constants. A short quiz completes the activity.

In this animated object, learners examine the operation of a summing operational amplifier through formulas, tables, and animated illustrations. A brief quiz completes the activity.

In this animated object, students view an explanation of how current, voltage, and the magnetic field strength of a series RL circuit change during five time constants. A brief quiz completes the activity.

Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.

In this animated activity, learners read an explanation of the four different modalities (currents) used in electrotherapy.

Students read an explanation of chemical formulas in this animated activity. A quiz completes the object.

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

Students read an explanation of the use of questionnaires in research. Open-ended and closed-ended questions are defined. Students complete the activity by generating a questionnaire.

In this learning activity you'll review an explanation of how to operate the Hurco Controller in the manual mode.

In this animated object, learners view molecules as they collide and move between two different solutions. They also observe what happens when the temperature of the solutions is raised or lowered.

In this animated object, learners examine the mechanisms for gas exchange among the lungs, blood, and tissues.

In this animated object, learners examine three different types of multivibrators: astable, monostable, and bistable. A brief quiz completes the activity.

Learners watch a video and an animated depiction of the operation of the feed section of a corrugated press. They also read descriptions of the feed table, side guides, feed wheels, feed gates, and the feed roll.

In this animated activity, learners examine the fundamental operation of a logic probe that is used to detect logic signals in a digital circuit.

In this animated object, learners examine the design of a ladder circuit that provides manual control to a water pumping system. Students also study modifications to the circuit as the complexity of the system increases.

In this animated and interactive object, learners examine ABO blood antigens and Rh antigens and their compatibility.

In this animated and interactive object, learners calculate the area and centroid of a rectangle.

In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.

In this animated activity, learners study the principle behind an inductor producing a high momentary voltage while its magnetic field collapses. A short quiz concludes the lesson.