Learners examine the formulas for calculating work in ft-lb units and power in ft-lb/min. units.
By Weldon Faull
Learners read how kanban is used in production control.
Analog Position Control
By Terry Bartelt
In this animated object, learners examine an analog closed-loop feedback system that uses potentiometers to control the position of a gear rack.
The Three-Way Switching Circuit
In this animated object, learners examine the mechanical configuration of a three-way switch and how it operates in a circuit. They also view diagrams showing the use of an ohmmeter to determine the electrical connections.
Current Source Approximations
By Patrick Hoppe
Learners examine first and second approximations and view examples of a "stiff" current source.
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.
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.
Students read an explanation of reactive power in a power distribution system involving motors, generators and transformers. A brief quiz completes the activity.
Properties of Exponents: Multiplication Rule - Set 2
You'll practice solving problems using the rule for multiplying powers with the same base.
Work and Power Formulas
Grade 8 Physical Science
Tic-Tac-Toe Game of Ergonomic Principles (Ref: Ergonomics: The Study of Work OSHA 3125)
Creative Commons Attribution-NonCommercial 4.0 International License.
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