Discusses various ways of measuring the length of a pendulum and how this measurement can be included in observation studies of a pendulum. (MLH)

Evaluates Thornton's modular electronics system for use in the general physics laboratory. Includes the Thornton pre-set counter-adapter, decade counter, and amplifier-power supply. (MLH)

Describes equipment that can be used to synchronize visual materials with an audio narrative. (MLH)

Discusses how to use the principles of operating electric cars to illustrate such concepts as energy conservation, electricity, magnetism, mechanics, heat, and sound. (MLH)

Discusses an instructional method for analyzing energy shortage problems in relation to the environment. (MLH)

Discusses a joint research program between several high school teachers and solar system astronomers in which data were collected on photoelectric observations of asteroids and minor planets via astronomical telescopes. (MLH)

Lists official SI units, temporarily accepted non-SI units, accepted non-SI units, and multipliers for SI units. (MLH)

Discusses the use of the exponential function in the compounding of interest. (MLH)

Discusses the physics involved in a falling elevator and whether an occupant of a falling elevator will be unharmed if he jumps up as the elevator crashes. (MLH)

Describes: how to measure index of refraction by the thickness method; how to teach the concept of torque using a torque wrench; how to produce a real image with a concave mirror; how to eliminate the interface effects of a Pyrex containers; and an apparatus to illustrate Bernoulli's Principle. (MLH)

Discusses some misleading statements found in elementary and secondary science materials concerning electricity and magnetism. (MLH)

Described are the contributions of Benjamin Franklin to eighteenth-century science, particularly in the area of early investigations into electrical phenomenon. (SL)

Presented is a review of the physical acoustics of percussion instruments. Instruments included are the glockenspiel, marimba, xylophone, vibes, chimes, and triangles. (SL)

Described is a physics experiment in which carbon dioxide cartridges mounted on a wheel with a spark timer can be utilized to measure the energy release of the cartridges. (SL)

Described is the construction and utilization of a Dewar assembly for measuring the heat of vaporization of liquid nitrogen. The device is fabricated from a thermos bottle replacement filler. (SL)