Describes a physics demonstration show where students conduct demonstrations for the rest of the school. By demonstrating a concept, students are forced to learn that concept in depth. Appendix includes a physics demonstrations resource list. (JRH)

A scavenger hunt is used as an instructional strategy during the final weeks of the school year. Procedures used, types of questions and problems asked, and student reaction are discussed. (JN)

Presents a technique that helps students concentrate more on the science and less on the mechanics of algebra while dealing with introductory physics formulas. Allows the teacher to do complex problems at a lower level and not be too concerned about the mathematical abilities of the students. (JRH)

Presents the original dialogue of Socrates' method of teaching a young student a simple form of the Pythagorean theorem. (ZWH)

The use and misuse of the superposition principle to analyze electrical circuits are discussed. (KR)

Describes experiments designed to investigate the cooling rate of microwave-boiled water as compared to that of stove-boiled water. Concludes that within experimental limits, microwave-boiled water and stove-boiled water cool at the same rate. (JRH)

Explores strategies in the situation of a runner trying to evade a tackler on a football field. Enables the student to test intuitive strategies in a familiar situation using simple graphical and numerical methods or direct experimentation. (JRH)

Describes a system of interactive astronomy whereby nonscience students are able to acquire their own images from a room remotely linked to a telescope. Briefly discusses some applications of Charge-Coupled Device cameras (CCDs) in teaching free fall, projectile motion, and the motion of the pendulum. (JRH)

Discusses problems associated with standard diffraction grating experiments involving a diffraction grating, a straight meter stick, and a slit. Describes the use of a new spectroscope to overcome these problems using a curved scale to simplify calculations and help students obtain results from simple and straightforward measurements, thus giving…

Explores the motion of a simple projectile, with emphasis on the critical angle at which radial oscillation begins and the return ellipse. Provides ideas for demonstrations of radial oscillations in the classroom. (JRH)

A real problem from the everyday world is presented. Students are asked to estimate the distance between two planes using a photograph taken by a passenger on one of the planes. The process used to solve the problem and possible errors encountered are discussed. (KR)

Described is how the crumpling of paper balls exhibits the concept of a topological dimension similar to fractals. The mass of the crumpled paper ball is found to be proportional to its diameter raised to a nonintegral power. (KR)

An exercise which relates particle scattering and the calculation of cross-sections to answer the following question--"Do you get wetter by walking or running through the rain?"--is described. The calculations used to answer the question are provided. (KR)

The use of a logarithmic amplifier preceding an oscilloscope's vertical amplifier is described for physics teachers who want to demonstrate the exponential decay nature of some phenomena. (Author/SA)

Describes an experiment that uses the ultrasonic transducer for demonstrating the Fourier components of waveshapes such as the square and triangular waves produced by laboratory function generators. (JRH)