Browse Resources

Learn about the physics of resistance in a wire. Change its resistivity, length, and area to see how they affect the wire's resistance. The sizes of the symbols in the equation change along with the diagram of a wire.This simulation of a Resistance in a Wire is from the Physics Education Technology...

The interactive resource, presented by the University of Colorado, Boulder, presents a demonstration how a doped semiconductor to create a diode or transistor. Watch the electrons change position and energy. This interactive simulation has a teacher's guide and an ideas and activities section.

Why do the lights turn on in a room as soon as you flip a switch? Flip the switch and electrons slowly creep along a wire. The light turns on when the signal reaches it. This simulation of a Signal Circuit is from the Physics Education Technology website of University of Colorado. Included are links...

Without getting too close to the mathematical nature of this subject, this tutorial from National Insruments aims to explain the meaning of Proportional-Integral-Derivative (PID) Control and how it applies to industrial manufacturing operations. The tutorial covers the control system, and overview...

This lesson plan from the Oregon Museum of Science and Industry explores the history of piezoelectricity, with hands-on examples of how it’s used, models of why it happens, and how it is applied in nanotechnology. Pressing on the piezoelectric buzzer in the background causes a current to flow and...

This video, provided by Columbia Gorge Community College, is the first part of a two part application exercise in programming and testing a programmable logic controller based two wire control circuit using the TECO SG2 PLR. The exercise also examines "normal operation and response to emergency...

This video, provided by Columbia Gorge Community College, is the second part of a two part application exercise in programming and testing a programmable logic controller based two wire control circuit using the TECO SG2 PLR. The exercise also examines "normal operation and response to emergency...

This video, provided by Columbia Gorge Community College, is the first part of a two part application exercise that covers programming and testing three programmable logic controller (PLC) 3 wire motor starters. These motor starters are programed without the necessity of ever physically rewiring the...

This video, provided by Columbia Gorge Community College, is the second part of a two part application exercise that covers programming and testing three programmable logic controller (PLC) 3 wire motor starters. These motor starters are programed without the necessity of ever physically rewiring...

This video, provided by Columbia Gorge Community College, is the first part of a two part application exercise that covers programming and testing a programmable logic controller (PLC) based unidirectional motor starter with jogging. During this exercise "normal operation and response to emergency...