Describes two experiments using carbon dioxide cartridges to demonstrate Newton's third law of motion. (JR)

Explains vast applications of simple harmonic motion in many fields of physics. With examples of 16 phenomena governed by the law, the author points out in conclusion that phenomena which may look like simple harmonic motion may not be in reality. (PS)

Students' cars and wristwatches are used as "apparatus" to introduce and demonstrate Newton's second law of motion. Forces acting on cars are discussed and typical student data (for different makes of cars) are provided. Data could also be used in discussions of work, horsepower, efficiency, and energy cost. (JN)

Provides an explanation for the observed motion of frisbees, can lids, "clay pidgeons," and flat stones when these objects are thrown through the air. Explanation focuses on forces (gravity and air), torque, and gyroscopic precession. (JN)

Illustrates use of analog/logic computer to produce realistic display of the actual motion of computer simulations in addition to the usual variable-versus-time solution. An arbitrary vector-generating circuit is postulated and utilized in several examples, the most general of which shows vector length, angle, and position all changing with time.…

Newton's laws can be illustrated by having physics students participate in various activities while on roller skates. Several examples of such activities (including photographs) are provided. (JN)