University of Michigan
University of Michigan: The Wallenberg Story
Website reveals notes on Wallenberg's stay in America at the University of Michigan and the complete story of his heroism during the Holocaust.
American-Israeli Cooperative Enterprise
Jewish Virtual Library: Raoul Wallenberg
The courage of an ordinary man saved thousands of lives. Here is the story of Raoul Wallenberg, a Swedish business man, who risked his life during the time of Holocaust.
Other
The International Raoul Wallenberg Foundation
The home page for the Wallenberg Foundation offers biographical information on Wallenberg as well as other Holocaust saviors.
Massachusetts Institute of Technology
Mit: Open Course Ware: Courses: Electrical Engineering: Circuits and Electronics
College-level electrical engineering course highlighting circuits and electronics. This course introduces the fundamentals of the lumped circuit abstraction. Course features include video lectures, suggested readings, labs, lecture...
TeachEngineering
Teach Engineering: Am I on the Radio?
During this activity, students create a working radio by soldering circuit components supplied from an AM radio kit. Since this activity is carried out in conjunction with the associated lessons concerning circuits and how an AM radio...
TeachEngineering
Teach Engineering: What's the Conductivity of Gatorade?
Students use conductivity meters to measure various salt and water solutions, as indicated by the number of LEDs (light emitting diodes) that illuminate on the meter. Students create calibration curves using known amounts of table salt...
Texas Instruments
Texas Instruments: Introduction to Electric Circuits
This activity will show how to properly connect wires to make a closed electric circuit. Included in this will be how to connect batteries in series and/or in parallel, and how to properly measure potential drops across a resistor and...
Physics Classroom
The Physics Classroom: Electric Circuits: Circuit Builder
Students manipulate this virtual electronic circuit board where they can add resistors, light bulbs, wires, and ammeters to build a circuit, explore Ohm's law, and compare and contrast series, parallel, and combination circuits. Three...
Concord Consortium
Concord Consortium: Total Resistance in Series Parallel Circuits
Use the formula for the parallel resistors to calculate the total resistance in series-parallel circuits.
Khan Academy
Khan Academy: Advanced Circuit Analysis
Practice analyzing circuits using Kirchhoff's laws and Ohm's law with series and parallel resistors.
Georgia State University
Georgia State University: Hyper Physics: Ac Circuits
A very comprehensive site organized well with many topics dealing with AC circuits.
Boston University
Elementary Physics: Current and Resistance
A general summary of electrical resistance including a comparison of AC and DC current.
Georgia State University
Georgia State University: Hyper Physics: Ohm's Law and Current Law
At this site from Georgia State University Ohm's law is stated in words and using equations. A JavaScript form allows for multiple practice problems with instant feedback and reinforcement. Kirchoff's current law is stated and...
Science Education Resource Center at Carleton College
Serc: Comparing Current Intensities of Series, Parallel, and Complex Circuits
Students will investigate the differences of current in series, parallel, and complex circuits through the construction of a small house containing the different types of circuits.
Wikimedia
Wikipedia: Ohm's Law
Wikipedia provides information on Ohm's Law, stating that the voltage drop is proportional to the current running through it.
TeachEngineering
Teach Engineering: Bulbs & Batteries in a Row
Everyday we are surrounded by circuits that use "in parallel" and "in series" circuitry. Complicated circuits designed by engineers are composed of many simpler parallel and series circuits. During this activity, students build a simple...
TeachEngineering
Teach Engineering: Hands on Activity: Designing a Thermostat
By building a basic thermostat, students will explore basic circuitry and electricity. The thermostat built out of a breadboard, temperature sensor chip, amplifier, and battery creates a linear relationship between temperature of the...
TeachEngineering
Teach Engineering: One Path
Students learn that charge movement through a circuit depends on the resistance and arrangement of the circuit components. In a hands-on activity, students build and investigate the characteristics of series circuits. In another...
Walter Fendt
Walter Fendt: Apps Zur Physik
This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...
Physics Aviary
Physics Aviary: Resistance of a Wire
This lab is designed to have students investigate the factors that affect the resistance of a wire. Students will be able to adjust the length of the wire, the diameter of the wire and the material from which the wire is constructed....
Khan Academy
Khan Academy: Electrical Engineering: Circuit Analysis
Circuit analysis is the process of finding all the currents and voltages in a network of connected components. We look at the basic elements used to build circuits, and find out what happens when elements are connected together into a...
California Institute of Technology
Caltech Physics: Lrc Circuit Applet
See how a resistor (R), a capacitor (C), and an inductor (L) react with one another in a system.
Science and Mathematics Initiative for Learning Enhancement (SMILE)
Smile: Resistances in Series and Parallel Circuits
A teacher lesson plan is provided here. This page describes two activities in which the effect of multiple resistors on the current and overall resistance of both series and parallel circuits are investigated. Complete activity...
Creative Science Centre
Creative Science Centre: Mobile Phone Absorption Wavemeter
An absorption wavemeter is a device which can make measurements on the strength of radio emissions and so this instrument is an essential item for investigating the mobile phone. In principle an absorption meter is a simple device that...
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