Provides instructional models for solids, liquids, and gases that incorporate a few adjustments for keeping the features and scale as valid as possible. States that 99 percent of the material in the universe is in a dominant form called plasma. (RT)

Described is a physical pendulum experiment with variable pivot as an example of maximizing computer benefits in laboratory interfacing. The laboratory procedures using spreadsheet graphics package are discussed. A diagram of the pendulum, basic formulas, and theoretical curve is provided. (YP)

Described is a position transducer used to convert the position of an object into a voltage read by a computer with use of an interface board. The arrangement of the apparatus, electronic circuit, and typical graph displays are presented. Discussed is the instructional use of the transducer. (YP)

Investigates the paths of three different points in the rigid body after receiving a sudden blow by a horizontal force. Describes the setup, laboratory procedures, and results with mathematical expressions and ink tracings of the paths. (YP)

This article presents an approach to teaching "motion and inertia." The teaching strategy consists of four phases: (1) orientation; (2) eliciting children's ideas; (3) restructuring of ideas; and (4) improving and applying. Samples of students' ideas on the concept of mechanics are provided. Lists 11 references. (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)

Discussion of the appropriate use of technology for distance education focuses on the need to examine why a delivery system is selected and proposes a method for selecting the medium based on course curricula and the need for motion. Use of the Internet for delivery is also considered. (Author/LRW)

Defines instructional roles of dynamic visual displays (DVDs), including animation and interactive video, and provides guidelines for using them in media-based instruction. Topics addressed include theoretical bases; examples of strategic applications of DVDs; six instructional conditions for using DVDs; and considerations for the design and…

Presents a mathematical explanation for the development of tidal activity. (MVL)

Describes the use of an exploratory computerized approach to introduce first-year physics students to the ramifications of Newton's third law of motion. (JRH)

Describes and provides methods to make animated displays of the following demonstrations: Tantalus's cup, wild-boar scarer, thermostat, palm glass, drinking bird, and electrical RC oscillator. (MVL)

Discusses an experiment for elementary students based on the principle that the faster an object is moving when it is dropped, the greater the distance it will travel away from the drop point. Also discusses concepts of probability and statistics in the experiment and methods of alternative assessment. (Author/MKR)

Discusses an aligner that permits dropping a stack of any number of balls of different sizes, elasticities, hardnesses, or types to observe the rebound of the top ball. Experimental results allow a reasonable comparison with theory. (MVL)

Discusses the use of contests to keep physics interesting and exciting for the students. Includes: balloon car, egg drop, tennis ball catapult, bridge building, mousetrap vehicle, musical instrument, slide photo, electric junk dissection, windmill generator, and solar heater. (MVL)