In this interactive object, learners solve for total resistance and current, the current through each resistor, the voltage across each resistor, and the power dissipated by each resistor.

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.

In this interactive object, learners work 12 problems dealing with dc circuit analysis.

In this animated and interactive object, learners calculate the area and centroid of a circle.

In this animated activity, students examine the difference between opens and shorts in an electrical circuit. A brief quiz completes the object.

In this animated activity, learners read about air loss in a pneumatic system and ways to reduce the leakage. The object includes audio.

In this animated object, learners examine the internal structure of an unloading valve. This learning object includes a video clip demonstrating the use of an unloading valve in a metal stamping application.

In this animated object, learners examine the operation of two-way, three-way, and four-way directional control valves used in pneumatic systems.

In this animated object, learners examine the operation of a pneumatic directional control valve using air pilot lines.

Environmental science air

identificarea caracteristicilor atmosferei

What makes the weather change each day?

Respond to the questions and see if you can become a "millionaire".