Producers: Alberta Advanced Education

A detailed analysis of J.J. Thomson’s charge-to-mass ratio experiement. Data from the experiment is used to calculate the ratio of charge to mass for one electron. The concepts used in the investigation are linked to television technology.

Develops a five-step procedure for analysing network circuits and uses it to analyse a model circuit built by referring to historic trolleys. Alternatives for public transit are identified using a risk-benefit model.

Repeats R.A. Millikan’s oil-drop experiment. Measures, collects and carries out an analysis of the data to determine the charge on one electron. Explores vector addition of forces and terminal velocity as applied in the procedure and analysis.

Explores the development of electrical systems in automobiles, from turn of the century cars to hybrid electric vehicles. Using automobile circuitry as a model, Kirchhoff’s rules are applied, and the connection made to conservation of charge and energy.

Observes the behaviour of light in experiments involving black body radiation and the photoelectric effect. When the observations are analyzed from the point of view of Maxwell’s model of light, it is obvious a new model is needed to explain the results.

Examines the use of a compass needle in navigation and links its behaviour to the Earth’s magnetic field. Explains how other common magnetic objects work and identifies the connection between an aurora display and magnets.

The concept of electromagnetism is introduced and investigated. The principles discussed are then applied to the workings of a malfunctioning speaker.

Viewers apply motor-effect principles to the design of electric DC motors. A quantitative investigation is performed to determine the force on a conductor in a magnetic field. Design, advantages and applications of DC motors are presented.

Provides additional information, experiments and problems on concepts presented in the video programs.

Explores benefits and risks in personal safety equipment, and develops a generic Risk-Benefit Assessment model. The model is used to reach personal decisions regarding the use of bicycle helmets.