Learners view animations showing how to change the connections to cause a DC motor to reverse its rotation. A short quiz completes the activity.
Identifying Lever Classes
By James Bourassa
In this interactive object, learners read an introduction to Class 1, Class 2, and Class 3 levers and then take a quiz.
GMAW Process Variable Definitions
The learner will understand and be able to apply the common welding variables of the GMAW process.
The Multiplexer/Demultiplexer IC Data Transfer Circuit
By Terry Bartelt
In this animated activity, the learner examines how a 74150 IC multiplexer and a 74154 IC demultiplexer work together when their data select lines are connected to the same input devices.
The Function Generator: Voltage Control
Learners read a description of the knob controls, pushbuttons and output terminals on the Wavetek Model 25 signal generator.
Oscilloscope: DC Voltage Measurements
Learners follow step-by-step instructions for using an oscilloscope to measure DC voltages.
Students view a graphical explanation of how the motor condition (unloaded, 50 percent loaded, fully loaded) affects the phase between voltage and current, the current draw from the AC supply, the amount of power consumed, and the power factor.
Series RC Circuit Practice Problems
By James Bourassa, John Rosz
In this interactive object, students calculate capacitive reactance, phase angle, impedance, and power in series RC circuits.
The 12 Cranial Nerves
By Barbara Liang
In this interactive and animated object, learners read a description of the number, name, and function of the cranial nerves. A matching quiz completes the activity.
The Two-Neuron Knee-Jerk Reflex Arc
In this interactive object, learners examine the neuron pathway into and out of the spinal cord. They complete the activity by testing their knowledge of vocabulary and the location of spinal cord structures.
Identify these 25 neurological terms in a marathon game of Hangmoon!
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