In this animated object, learners examine how magnetic waves are transmitted as radio signals.

Students review the rule for writing the possessive form of singular nouns that end in an "s" sound. They then complete exercises.

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

Learners view animations showing how a time-of-flight flowmeter uses ultrasonic sound waves to measure the flow of a liquid.

In this animated learning object, learners examine how an ultrasonic flowmeter measures the flow of liquids through a pipe using ultrasonic sound waves. A short quiz completes the activity.

Learners consider the most common types of electromagnetic waves and the kinds of hardware used in a wireless network. A short quiz completes the activity.

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

Learners practice their comprehension and recall skills while listening to narration on listening skills. Sound required.

This animated guide presents an FAA map and aerial photos showing various areas of interest to student pilots enrolled in flight training at FVTC Aviation at Wittman Regional Airport in Oshkosh, WI. The airport is the site of the annual Experimental Aircraft Association's AirVenture Oshkosh. This object has sound.

In this animated object, learners view the "T" and "P" waves and the "QRS complex." A brief quiz completes the activity.

In this 3D animated object, learners examine the way in which a three-phase generator produces three sine waves with three armature coils. A quiz completes the activity.

Learners examine the various classifications of airspace and the requirements to pilot an aircraft there. A quiz completes the activity. This object has sound.

Learners examine how a radiation pyrometer converts the frequency of electromagnetic waves to a temperature reading.

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

Learners read about audiological tests including pure tone testing, air conduction, bone conduction, Speech Reception Threshold, and Speech Discrimination Score. They listen to sounds and words recorded at different decibel levels and see a graphic representation of decibel ranges. A brief review concludes the activity.

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