Presents an experiment in which students can verify a number of basic ideas about electrical circuits and resistors. (CCM)

Explains the changing colors on a cathode ray tube monitor while flying on an airplane. (CCM)

Describes an experience with the use of a radioactive tracer in medicine. Discusses the methodology of how the tracer was used. (CCM)

Describes two experiments in which a pendulum was used to determine acceleration along the runway during the takeoff of a plane and the takeoff speed. Uses a water-filled nanometer to determines the drop in cabin pressure during the flight. (CCM)

Finds a strange behavior that contradicts the common notion that the force of kinetic friction is constant and depends only on the normal force. (CCM)

Argues that it is possible to get a smooth ride on noncircular wheels on a smooth road if the load is supported using the wheels as rollers. Illustrates that the key to getting a smooth ride is for the rollers to measure the same height from top to bottom, regardless of how they are rotated. (CCM)

Presents an approach for students to grasp the series RLC circuit that involves a virtual four-channel oscilloscope installed on a laptop computer. (CCM)

Presents an investigation of centrifugal forces and frictional forces using a rotary motion probe (RMP). (CCM)

Describes a collection of free-body exercises for linear and circular motion. Offers new methods of drawing free-body diagrams. (CCM)

Finds that students taking algebra-based introductory physics have difficulty with one- and two-body problems in particle mechanics. Provides graded exercises for drawing and utilizing free-body diagrams. (CCM)

Uses role-playing exercises as a method for teaching introductory astronomy classes to nonscience majors. (CCM)

Shows an example of bad physics by illustrating that the tidal effect is caused not only by the moon but also by the sun. Proves that differences in the gravitational tug on water at various parts of a basin is responsible for tidal mechanism. (CCM)

Examines the simultaneous occurrence of ultraviolet light and the photoelectric effect. (CCM)

Compares various detector technology for measuring the direction and magnitude of magnetic fields. (CCM)

Describes nine basic experiments that demonstrate the wave nature of light and the optical properties of water. Finds that a laser pointer works well as a light source in the laboratory. (CCM)