In this animated object, learners read the dimensions of the different types of vehicles typically considered in highway design.

In this animated object, learners examine the formulas used to convert peak, RMS, average, and peak-to-peak AC voltages. A brief quiz completes the activity.

In this animated activity, learners examine the operation of hydraulic directional control valves and the internal components that divert the fluid.

Students read an explanation of "superposition" as a technique for ac circuit analysis. Complex numbers are used.

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.

Beginner CS and Scratch coding

Test Study Review

Calculate for each Case PV, FV and Interest Gain

Programming Basics