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.

In this animated object, learners examine the operation of a capacitive proximity sensor. A brief quiz completes the activity.

Learners study the method of cascading two or more PLC timers to extend their time capacity.

In this screencast, students read about the key differences between management and leadership activities. They will review typical supervisory activities as either management or leadership.

Learners examine the anatomical parts of the lungs.

In this animated activity, learners examine the operation of an ultrasonic sensor and the procedure to perform zero and span adjustments. A brief quiz completes the object.

Students examine the procedure to measure current with an analog ammeter. The use of Function and Range switches is explored along with reading the needle position on the meter scale. A brief quiz completes the activity.

Learners observe current flow throughout the series portion and branches of a parallel circuit. This animated activity includes calculations and a short quiz.

Students read about the basics of using an indicator.

The learner will understand proper safe handling and installation procedures for shielding gas cylinders.

In this activity, you'll distinguish between sexual harassment facts and fiction.

Learners examine an animation that shows how an AC voltage is produced as an armature rotates within a magnetic field. Ten review questions complete the learning object.

In this activity, you will work with a list of medical terminology abbreviations and their definitions.

Students view a sample of the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of a de-energizing circuit.

Students view a sample of the keystrokes used on a TI-36X calculator to solve for the instantaneous current of a de-energizing circuit.

In this interactive and animated activity, students follow the steps for proper digital multimeter placement for resistance, voltage, and current.

Learners read the legal definition of sexual harassment and then evaluate two situations to determine if the behavior should be reported as possible sexual harassment.

Learners review the three formulas for power and work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and asked to solve for power. Immediate feedback is provided.

Students read how to determine and calculate the dry unit weight for a given sample of soil or aggregate based on the weight-volume relationship.

In this interactive object, the learner views examples of the neutral position of the back and compares that stance to the flat back and swayback positions. A brief quiz completes the activity.

Learners examine the fundamental operation of a difference operational amplifier. A brief quiz completes the activity.

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.

Learners consider the most common types of electromagnetic waves and the kinds of hardware used in a wireless network. A short quiz completes the activity.

Learners test their knowledge of the variations of Watt's Law and Ohm's Law with this quiz.

Students view the steps for multiplying complex numbers in Excel.