Evaluates an elementary textbook (Journeys in Science, volume 3) on thermodynamics. Points out some inadequate expressions and explains the reasons. (YP)

Described is an experiment for measuring the coefficient of restitution with a meter stick, balls of different types, and scraps of material for the plates. Provides the experimental procedure and an apparatus diagram. (YP)

Asks the relationship between mass and skidding distance. Provides a problem with illustrations and an answer. (YP)

Evaluates 16 commercially available courseware packages covering topics for introductory physics. Discusses the price, sub-topics, program type, interaction, time, calculus required, graphics, and comments of each program. Recommends two packages in measurement and vectors, and one-dimensional motion respectively. (YP)

Describes a run test of automobiles for applying Newton's second law of motion and the concept of power. Explains some automobile thought-experiments and provides the method and data of an actual coast-down test. (YP)

Investigates the attitudes of high school students (grades 11 and 12) toward physics and physics teaching including reasons for taking or not taking physics and reasons for considering or not considering a career in physics teaching. Provides frequency tables of responses to the questions. (YP)

Described are videotapes for elementary school teachers. Outlines seven examples of demonstrations from physical science. Provides information on how to obtain the tapes. (YP)

Answers a student's question about the emission of a positron from a nucleus. Discusses the problem from the aspects of the uncertainty principle, beta decay, the Fermi Theory, and modern physics. (YP)

Discusses the average speed differences between hydrogen and oxygen molecules contained in a jar. (YP)

Describes an approach to teaching quantum theory without math with emphasis on some innovative approaches and topics such as nonlocality and Bell's theorem. Written in the form of suggestions to prospective instructors. (JRH)

Presents activities that use a simple homemade apparatus called "the cannon" to demonstrate Newton's Third Law. Reviews the chemistry concepts behind the ignition of the cannon and presents the Momentum Lab and the Projectile Motion Lab. (JRH)

Describes the construction of lithographic gratings and Young's double slits by a contact print method that does not require any special skill or equipment. (JRH)

Reviews the concepts behind atmospheric optical phenomena such as rainbows and anticrepuscular rays. Describes the experience of observing these two phenomena simultaneously and calculates the probability of that observation. (JRH)

Discusses the Doppler effect for relative motion between a source of waves and an observer and the orbital dynamics of communications satellites. Presents preliminary calculations of the satellite's altitude and linear velocity using only the concepts of the Doppler shift and the mechanics of motion in a circular path. (JRH)

Describes the laws of physics that allow a motorcycle rider to control the flight of a motorcycle over obstacles in a motocross track. (JRH)