In this animated object, learners examine the ratio control method used in automation when two or more ingredients are mixed. A brief quiz completes the activity.

Learners study the theory of operation for a ratio pyrometer that measures temperature. A short quiz completes the activity.

In this screencast, learners examine the concept of gear ratios. The number of teeth, diameters, and velocity relationships are discussed and calculated using linear ratio equations.

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

Learners view an animated explanation of why an adjustment of the output voltage by an AC drive is required to maintain a constant torque as the frequency is varied.

Students read descriptions of the voltage, current, and turns ratios of the primary and secondary coils for a transformer in this interactive lesson.

In this interactive object, learners simplify ratios and solve problems using proportions. All terms are defined.

Learners read the definitions of working capital, current ratio, quick ratio, return on equity, accounts receivable turnover, and inventory turnover.

In this animated object, learners examine formulas for displacement and velocity ratios. They also view examples and calculate velocity and the velocity ratio.

Learners apply lever ratios to calculate the mechanical advantage in basic mechanisms.

Learners use the coefficients in a balanced equation to develop the mole ratios of reactants and products involved in the reaction. Five interactive examples illustrate the method, and students test their knowledge by working four problems.

In this learning activity you'll evaluate the Sine, Cosine, and Tangent ratios of a right triangle.

In this animated and interactive object, learners examine why the voltage produced by an AC drive must be increased when its frequency is increased due to inductive reactance.

In this learning activity you'll review sample problems and practice simplifying ratios.

Learners read an analogy comparing an electrical transformer to mechanical gears.

Learners review a graphic summary of the three series of reactions that occur during cellular respiration and the net energy (ATP) yield of that process.

The student takes a quiz on lathe operations between centers.

Learners view an animation showing the one-shot operation of a programmable logic controller.

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.

After watching this video, you will know the different parts of the FlexArm, how to set it up, and how to operate the FlexArm.