Learners examine devices that are used to protect a motor from damage, such as fuses, overload heaters, and thermal protectors. A quiz completes the activity.

Learners are introduced to the maximum power transfer theorem. Examples show the load as it varies and the results are graphed.

Learners examine the formulas for calculating work in ft-lb units and power in ft-lb/min. units. Practice problems are included.

Learners examine first and second approximations and view examples of a "stiff" current source.

In this learning activity you'll examine how electronic converters convert between analog voltages and proportional digital signals.

Learners work problems to make conversions between RMS, average, peak, and peak-to-peak AC voltages.

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.

Students solve six problems for series impedance using complex numbers. Immediate feedback is given.

Students work six practice problems to determine the total impedance of a parallel circuit.

Explores the gender digital divide occurring within society.

vocabulary about measurements and numbers.

Spin, math, time and measurement

See what you know about Digital Citizenship by playing this game.