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.

In this animated object, learners examine why and when the Kelvin scale is used. A brief quiz completes the activity.

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

In this animated object, learners examine the formation of ester bonds in the synthesis of lipids using triglyceride biosynthesis as an example. Ester bond formation is described as a dehydration synthesis reaction.

Learners observe the animated operation of an astable mulivibrator using a 555 IC (integrated circuit) chip and external components.

In this animated object, learners study the drawbacks of a single-loop armature of a DC motor and the advantages of a multi-loop armature.

In this animated learning object, students examine the addresses of PLC elements and how they pertain to I/O connections and internal memory files.

In this animated object, learners examine the various connective tissue layers of the muscle organ. The terms "prime mover," "synergist," "antagonist," "origin," and "insertion" are defined.

Learners read how to use the knobs and the output terminals of a Wavetek Model 25 function generator to obtain a waveform at a desired frequency.

Learners review guidelines for the proper use of a dial caliper. Illustrations appear throughout the learning object.

The learner examines the setup process of a TI-83 Plus calculator. The process is demonstrated and examples are given.

The technique for designing a MOD 10 counter is introduced. Asynchronous inputs of a JK flip-flop are used to clear the counter.

In this learning activity you'll identify and calculate the area under the normal curve specified by given z-scores.

In this animated activity, learners read the definition of a parallelogram and then find the perimeter and area of parallelograms in practice problems.

Students learn how to predict how circuits will respond to varying frequency. They solve for the magnitude and phase angles.

Learners are shown questions to ask themselves before they speak. They evaluate three responses according to the criteria presented. This activity has audio content.

The learner will understand the inner workings of the strain wave gear principle.

This primer introduces the student to the correct method of using complex reciprocals in a TI-86 calculator. The solution of total impedance of a parallel circuit in rectangular form is shown.

In this screencast, the learner identifies the kidney's internal and external structures.

Students read about the ENTRY, INS, and DEL keys and view a demonstration of how to edit and insert characters and recall previous entries.