In this animated object, students examine the concept of wattage dissipation and the three Watt's Law formulas.
The Time-of-Flight Flowmeter (Screencast)
By Terry Bartelt
Learners view animations showing how a time-of-flight flowmeter uses ultrasonic sound waves to measure the flow of a liquid.
Methods of Producing Electricity
In this learning activity you'll review the six different ways in which electricity is produced: chemical, friction, heat, light, magnetism, and pressure.
By Patrick Hoppe
Students read an introduction to capacitive reactance and view examples.
How Current Requires Voltage
This learning activity uses a water pressure analogy to present the concept that voltage pressure is required to cause current flow.
AC Current Flow
In this interactive and animated object, learners examine the flow of electron current into and out of hot and neutral sockets during each alternation of an AC waveform. A brief quiz completes the activity.
Kirchhoff's Current Law (KCL) with Complex Numbers
Students view a demonstration of Kirchhoff's Current Law (KCL) using complex numbers with respect to ac.
Learners read about the concepts of true power, reactive power, and apparent power, and are introduced to the power factor formula. A short quiz completes the activity.
Students read about the concept of true power and view examples of how it is dissipated as heat is provided.
Learners read an explanation of the concept of apparent power in a power distribution system involving motors, generators, and transformers. A quiz completes this interactive lesson.
Judicial Branch Vocabulary Plus
Civics Vocabulary Baseball
Rights for Inmates in Canada
Rights for inmates
Precedent for Criminal Procedures
Law enforcement court cases
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