A whiplash event is a relative motion between the head and torso that occurs in rear-end automobile collisions. In particular, the large inertia of the head results in a horizontal translation relative to the thorax. This paper describes a simulation of the motion of the head and neck during a rear-end (whiplash) collision. A head-neck model that…

Provides directions for a three person rotating reference system. A series of experiments used with the apparatus is also described. (CP)

Describes an introductory lecture-demonstration for a physics class. The device transports a small steel ball from a starting point to a finishing point; along the way the ball goes through a number of steps. (RH)

Explains a method of exploiting recent interest in automobile safety to demonstrate, qualitatively, concepts of momentum and energy. (GS)

Discusses the design of introductory physics course for elementary education majors and nonscience majors. Describes the learning cycle used for constructing hands-on activities. Provides an example of a week's activity on energy. Presents an evaluation of the course based on examinations and the teacher's impressions. (YP)