In this animated object, learners examine how magnetic waves are transmitted as radio signals.
By Terry Bartelt
In this animated activity, learners examine the conductivity of a solution and how its properties affect measurements to determine concentration levels. A brief quiz completes the learning object.
Strength of Materials: The Centroid of a Circle
By Steve Whitmoyer
In this animated and interactive object, learners calculate the area and centroid of a circle.
Basic Symbols Used in Engineering Drawings
By Kelly Curran, Glenn Sokolowski
Learners examine the drawing symbols used for counterbore, countersink, spotface, radius, diameter, and depth. In the quiz that completes the activity, they associate these symbols with machining applications.
Hydrostatic Pressure (Screencast)
In this animated object, learners read about hydrostatic pressure and observe how it is used to measure the level of a material in a container.
DC/AC I: Unit 8 Sample Exam
By Patrick Hoppe
Students answer five questions concerning magnetism.
The Magnetic Circuit
Learners compare electromagnetic quantities with the voltage, current, and resistance quantities of an electrical circuit. A brief quiz completes the object.
The Sine Wave
Using text and graphics, this learning activity describes a sine wave, including alternations, cycles, time, amplitude, and degrees
How Metal Detectors Operate
Learners examine how metal detectors function. This object includes animation and sound.
Transformers - A Mechanical Gear Analogy
By Roger Brown
Learners read an analogy comparing an electrical transformer to mechanical gears.
Sound Review for quiz
Magnetism and Electromagnetism
The Dynamic Ocean pt 1 Review
Radio Frequency Propagation
You'll focus on how radio frequencies spread under different circumstances.
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