Learners read a description of torque and study the factors that cause its magnitude to change.

Learners read about Six Sigma philosophy and methods. The need for high quality levels for today's customers is stressed.

In this interactive object, learners identify the qualities of a person with integrity. They also list the qualities that they themselves possess.

The learner studies how electrons travel from one atom to the next. Examples demonstrate how voltage is created by the use of a battery or through magnetism. A quiz completes the activity.

Learners study an animation that shows how a battery charge reduces over time and when varying resistance values are placed in a series circuit. Ten review questions complete the activity.

In this animated and interactive lesson, learners examine additive and subtractive color theories.

Learners identify attitudes that they want to examine and perhaps change. They then write an individual action plan to achieve this goal.

The learner will identify the steps and proper techniques for installing a wire spool on a welding machine.

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

Students read how to determine and calculate the saturated unit weight for a given sample of soil or aggregate, based on the weight-volume relationship. Practice problems complete the activity.

In this animated activity, students read about weight-volume relationships within a given sample of soil or aggregate. They complete problems using a 3-phase diagram.

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.

Students read an explanation of the use of weight-volume relationships and practice calculating density.

Students read about the concept of unit weight relating to the 3-phase diagram and perform calculations.

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

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

Students read how to determine and calculate the saturated density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.

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

This interactive learning object demonstrates how the moisture content is determined for a given sample of soil or aggregate.

Robotic welding allows welders to create more consistent and higher quality welds. But, it requires you to understand the terminology associated with its programs. Watch this module to review terminology associated with robotic arc welding and the weaving process.

Learners view waveforms at various locations of an SCR circuit controlling the intensity a light bulb. The waveforms are shown when the light is dim, at medium brightness, and at full brightness. A brief quiz completes the activity.

Learners observe the waveforms in a circuit in which a triac controls the brightness of a lamp’s light. A brief quiz completes the activity.

In this animated object, students examine the concept of wattage dissipation and the three Watt's Law formulas.

Learners examine the function of the analog wattmeter to measure true power, how it is connected in a circuit, and how the internal components develop a measurement. A brief quiz completes the activity.

In this scenario, learners put themselves in the place of a safety director at a local company. They watch video of an injury-causing incident and propose changes to company policies and procedures to try to maintain a safe environment.