Learners will identify the number of significant digits in practice problems.

Learners read how to set up a TI-86 calculator. The process is demonstrated and examples are given.

In this animated object, learners examine the operation of a Schmitt Trigger IC and its hysteresis function. A brief quiz completes the activity.

In this interactive and animated object, learners examine why the piston of a hydraulic cylinder extends slower than it retracts. A brief quiz completes the activity.

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

In this animated and interactive object, learners identify the valves and chambers of the heart.

In this animated lesson, students view the operation of an electromechanical relay. A brief quiz concludes the activity.

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

Learners examine the changes in current and voltage values in a parallel circuit when open and short conditions develop. Ohm's Law calculations are shown, and a brief quiz completes the activity.