In this interactive object, learners examine how voltages and currents vary in a parallel LC circuit as the applied frequency changes.

Learners examine how voltages and currents vary in a series RLC circuit as the applied frequency changes.

The student identifies the anatomical parts of the ear and learns the purpose and function of these parts. A review follows the lesson.

In this animated lesson, learners examine sine waves and alternating current. A brief quiz completes the object.

Using text and graphics, this learning activity describes a sine wave, including alternations, cycles, time, amplitude, and degrees