In this animated object, learners examine the relationship between pressure and temperature in an air conditioning system.

Learners view a demonstration showing that line-neutral voltages and line-line voltages are not in-phase with each other, but have a definite 30-degree relationship.

As a welder, you'll need to know how to convert between standard and metric measurements. Try this activity to practice converting between these two measurements. A conversion chart is provided to help you complete this work.

In this learning activity you'll calculate problems using the negative both inside and outside of the parenthesis.

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

In this screencast, you'll distinguish the differences between the content message and the relational message.

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.

Learners read work instructions and view a drawing for turning between centers on a lathe.

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 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 density for a given sample of soil or aggregate, based on the mass-volume relationship. Practice problems complete the activity.

In a series of three interactive exercises, learners explore the relationship between process cycle time and defect detection, and between process cyle time and smaller batch sizes. The techniques of lean/JIT are applied to achieve the continuous improvement (kaizen) goal of reducing inventory by pursuing one-piece flow.

Every speech starts with an outline. Knowing how to write one can make the difference between speech success and speech failure. In this module, we’ll explore what’s involved in creating an outline, demonstrate how to put one together, and give you examples you can use to create your own outline.

The student takes a quiz on lathe operations between centers.

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

In this learning activity you'll differentiate between the five contexts affecting communication.

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

Video Overview of turning between centers on a lathe.

In this learning activity you'll examine the difference between two types of interactions with customers, encounters and relationships.

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.