In this interactive object, learners test their knowledge of 14 geometric tolerance control symbols.

Learners examine the connections of a DC motor and how the terminals are labeled. A matching exercise completes the learning object.

Learners study the types of information letters and numbers placed inside general piping and instrumentation diagram symbols.

Learners view animations showing methods of measuring the pH level of a solution using litmus paper and electronic instruments.

In this teaching and learning aid, the user can alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

Students solve problems on the determination of total inductive reactance of series-parallel inductors.

Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

Learners alter circuit variables and view how these changes affect circuit voltage, current, reactance, impedance, and phase angle.

In this animated object, learners examine cycles, frequency, Hertz, wavelengths, and periods. A brief quiz completes the activity.

You'll focus on how radio frequencies spread under different circumstances.

You'll learn some concepts related to radio frequency modulation.

You'll learn to identify frequency bands of the electromagnetic spectrum licensed by the FCC.