Learners study an animated block diagram that describes the function of each element in a closed-loop system used in industrial automation.
By Terry Bartelt
In this learning activity you'll explore how a fuse de-energizes a parallel circuit when too many lamps are connected to a power outlet.
Converting Numbers from Standard Form to Engineering Notation
By Ron Wallberg
Learners convert a number from standard form to engineering notation.
Dynamic Braking Circuits
In this animated activity, learners examine the operation of a dynamic braking circuit used to quickly stop a motor.
The TI-86 Calculator: Using the Reciprocal Key
By Patrick Hoppe
The use of the reciprocal key on the TI-86 scientific calculator is demonstrated in the solution of parallel resistors.
How to Convert from One Unit to Another in the Metric System
By Nabila Dahche
In this learning activity you'll practice converting from one metric unit to another.
The Edison Wire System
Learners read a description of the wiring configuration of a residential Edison Wire System, which consists of a transformer secondary circuit. The circuit supplies two 115-volt sources and one 230-volt source.
The Neutral Current of an Edison Wire System
Learners take a close look at the Edison Wire System and observe how the current values through the two lines and the neutral of the system change as the loads vary.
Voltage Waveforms in an Edison Three-Wire System
Learners view the waveforms and voltages of an Edison Three-Wire System and read a description of the polarities across the secondary of the center-tap transformer. This transformer supplies power to residential homes.
The Stress Response
By Barbara Liang
In this animated object, learners read a brief description of the roles of the hypothalamus, emotions, and adrenal secretions during the stress response.
Medical Terminology for Muscular System
Use the definition to guess the word or prefix and save the moon!
Chakalaka: Digestion Questions
a game to test your knowledge on the human digestive system
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