Presents a simple experiment that enables students to get a quantitative measure of the relationship between the resistance of a wire and the temperature of the wire allowing the calculation of the temperature coefficient of resistance. (JRH)

Describes the construction of a Tesla coil using a car coil and presents various experiments for which it can be used. (JRH)

Presents several resistance measurement experiments based on the function of a magnetic multimeter. Resistance is measured in terms of the current that the internal dry cell drives through the unknown resistor connected across the input terminals. For use with digital and nondigital multimeters. (LZ)

This book is designed to provide guidance and ideas for science projects to help students learn more about science as they search for answers to specific problems. The 20 topics on electricity in this book suggest many possible problems to solve. Each topic has one detailed experiment followed by a section that provides additional questions about…

Describes a laboratory activity which provides practical experience in wiring an electrical circuit with line voltage and everyday components. Students use wooden frames, bulbs, wire, fuses, and switches to test their wiring skills. (DH)

Describes use of brass electrodes (replacing conductive ink and push pins) in the field-mapping experiment. Also describes use of birch plywood for building a circuit board and a demonstration in which a resemblance of the Cheshire Cat is made to appear and reappear. (JN)

Discusses when alternating and magnetic fields are independent. Provides examples of experiments involving mains hum and the detection of induced signals. Describes electric circuits and oscilloscope displays. (Author/YP)

Presents the temperature profile of the Duracell Test Strip obtained using a Inframetrics 740 thermal imaging radiometer and ThermaGRAM95 software and compares this to the theoretical profile derived by Clark and Bonicamp. (JRH)

Traces the early history of an experiment, the launching of a copper or aluminum ring above the pole of an alternating current magnet at switch-on, that was conducted by Elihu Thomson in the last century and presents a simple qualitative explanation of the effect involved. (GA)

Young children in Australia enter early childhood education settings eager to make sense of the world that surrounds them. Their interest in every day experiences is evident in the range of questions asked, many of which are scientific in nature. Intended as a resource for adults working with 4-to 8-year-old children, this booklet provides an…

Students are challenged to investigate a simple electric motor and to build their own model from a battery, wood block, clips, enameled copper wire, bare wire, and sandpaper. Through trial and error, several discoveries are made, including a substitute commutator and use of a radio to detect motor armature contact changes. (DH)

Describes experiments in which a bipolar transistor is used to examine the behavior of a simple circuit. Also addresses problems in teaching the related concepts. (The experiments can be modified to incorporate devices other than bipolar transistors.) (JN)

Describes a simple, inexpensive electronic circuit used as a small analog computer in an experimental approach to the study of oscillations. Includes circuit diagram and an example of the method using steps followed by students studying underdamped oscillatory motion. (JN)