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

Learners examine how metal detectors function. This object includes animation and sound.

Learners study the process of mathematically converting temperatures between the Fahrenheit and Celsius scales.

Learners examine the labeling scheme used in ladder logic diagrams to identify components, wires, rungs, and rails. This activity includes self-check questions.

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 object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.

In this animated object, learners see how a time proportioning operational amplifier varies an average DC voltage. A brief quiz completes the activity.

Students read an explanation of the operation of an operational amplifier that functions as a comparator.

In this interactive object, learners examine the operation of an inverting operational amplifier through formulas, tables, and animated illustrations. A brief quiz completes the activity.

Programming Basics

Questions are based on material in income tax.

Beginner CS and Scratch coding

Test Study Review