In this animated object, learners examine how magnetic waves are transmitted as radio signals.
DC/AC: Unit 1 Sample Exam
By Patrick Hoppe
In this interactive object, learners work 11 problems covering atomic structure, conductors, and insulators.
Comparing Analog and Digital Signals
By Terry Bartelt
Learners compare animations of analog and digital data signals. A short quiz completes the activity.
Sine Wave Fundamentals: Practice Problem #5
In this interactive object, learners determine the Vp, Vp-p, Vrms, Vavg, and the frequency of a sine wave that is displayed on an oscilloscope screen.
Hydraulic Oil Contamination
By Terry Bartelt, Stephen Schneider
In this interactive object, learners examine how hydraulic oil is contaminated, the types of damage contamination can cause, and the methods used to clean the oil.
DC/AC I: Unit 8 Sample Exam
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.
ENTERTAINMENT AND MEDIA
Vocabulary crossword which focuses on entertainment and media
You'll learn to identify frequency bands of the electromagnetic spectrum licensed by the FCC.
Beekeeper - Sound Waves
Multiple choice test
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