This animated lesson shows how a ladder circuit causes the cylinder of a hydraulic circuit to continuously extend and retract after a Start button has been pressed.

Students read how to use the IMCONJUGATE() function to convert complex numbers to their conjugate in rectangular form.

Students read about how to make the plural form of nouns that end in "y." They then complete an exercise.

In this video, we’ll identify the parts that make up the Bridgeport and learn how it works.

This activity is cognitive. Learners will actively listen to a story activated by the computer. Then learners will take a quiz on their comprehension. Lastly, learners will compare their chosen answers against the answer key to determine how well they really did "actively" listen. (Credit given to Tom E. Wirkus, University Of Wisconsin-LaCrosse for this activity.)

In this learning activity you'll examine how electronic converters convert between analog voltages and proportional digital signals.

Learners create and analyze a SWOT diagram showing Strengths, Weaknesses, Opportunities, and Threats for their work or personal lives.

In this learning activity, we’ll explore how async and await is used in mobile programming to allow multiple tasks to happen at once.

In this interactive object, the learner reads an explanation of how various shielding gases are used in GMAW and FCAW. An exercise completes the activity.

This learning activity explains how site structure and organization can have a positive effect on optimization and driving traffic to your website.

In this learning module, you'll explore what electrical grounding is, how it works, and some real-world applications.

The learner will gain an understanding of how a robot uses welding instructions to perform tasks. This learning activity includes video.

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.

Learners listen to an explanation of balance sheet basics for farm operations. They then determine how purchases should be listed in a farm record book and complete sample income and expense sheets.

In this screencast, learners read how microbes in such items as yogurt, bread, insulin, and insect sprays improve our lives.

Learners examine how vapor pressure is calculated. The vapor pressure of a liquid increases with increasing temperature. If the heat of vaporization and the vapor pressure at one temperature are known, the vapor pressure at a second temperature can be calculated.

Learners listen to an explanation of how to perform an inventory of a farm business. They then list their hard assets and human resources by completing worksheets that they save to their personal computers.

Learners examine the impedance matching capability of a transformer and how to select the proper turns ratio to achieve this function. A brief quiz completes the activity.

Students read an introduction to the transconductance amplifier. They also view formulas for voltage-to-current conversion, closed-loop input, and output impedance. An example of how R1 controls the conversion factor is given.

Learners read a step-by-step approach on how to connect an ohmmeter when making measurements in this interactive lesson.