Learners study the fundamental operation of a triac, particularly how it is turned on and off. A brief quiz completes the activity.

Learners review the three formulas for power and work 12 problems. In each of the problems, students are given two of the three variables (voltage, resistance, or current) and asked to solve for power. Immediate feedback is provided.

In this animated and interactive object, learners examine the basic parts and the linear movement of a hydraulic cylinder. A brief quiz completes the activity.

Students view the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of an energizing RL circuit.

Learners apply the Law of Cosines to determine forces using a TI-36X calculator in this animated object.

In this interactive and animated object, learners apply the Law of Cosines to determine forces using a TI-86 calculator.

In this interactive learning object, students calculate a resultant of multiple forces acting in a concurrent, coplanar condition.

The learner calculates the resultant of multiple forces acting in a concurrent, coplanar load condition.

In this interactive object, learners use the Pythagorean Theorem to calculate forces.