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.

In this module, you will see the derivation of the total surface area formula for a cylinder and work through several application problems.

This screencast shows how blood droplets are held together by a strong cohesive molecular force that produces surface tension in each drop and on the external force. Surface tension pulls the surface molecules of a liquid toward its interior, decreasing the surface area and causing the liquid to resist penetration.

Students examine examples for calculation yield, throughput yield, rolled throughput yield, and payback, each of which is used to analyze process performance in a Six Sigma project.

In this interactive object, learners examine how work is performed in foot-pounds by a hydraulic system that uses a pump and cylinder. A brief quiz completes the activity.

In this interactive object, learners demonstrate the proper tightening sequence for mechanically joining two mating surfaces.

In this learning activity you'll factor problems using the difference of two perfect squares.

In this screencast, learners read descriptions of the actions of the superficial skeletal muscles and see their locations.

Learners review surface finish basics and read how to calculate the roughness average.

In this learning activity, you’ll explore the Waterfall model and its application to software development.

Learners examine the symbols and values that control surface roughness, waviness, and lay. A brief quiz completes the object.

In this learning activity you'll discover three factors that affect group performance: group cohesiveness, communication structure, and individual roles.

Students take a quiz to test their knowledge of surface finish.

Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.