Languages: English

Investigates the self-regulating nature of electric-motor speeds and uses Lenz’s law as a method of explaining the event. The Meissner effect and induction furnaces are compared and contrasted in terms of eddy currents and energy conversions.

Ionic crystals provide a real-life application of quantifying electrostatic forces between point chages. Large-sized models are used to facilitate advance Coulomb’s law problem solving, using vectors and vector components.

Explains the operating principles of the transformer and gathers empirical evidence to deduce the relationships among the important variables at work. Assesses the benefits of high voltage transmission and explains how technology favoured the use of AC.

The concept of field and field strength around point charges is developed from the parallel ideas in gravitation. Investigates the shape of electric fields around point charges and quantifies field strengths and forces.

Focuses on the historic development (Oersted, Ampere, Faraday, Maxwell) of electromagnetic theory. Mini-labs demonstrate the wave-like behaviour of EMR and a research project investigates the constituents of the electromagnetic spectrum.

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

Elevators, escalators and an amusement park ride explain mechanical energy transformations and provide data to calculate the work done and power developed. Examines the principles of work, power and energy, and analyses data obtained from an air table.

Analyses the transformation of gravitational potential energy to kinetic energy using algebraic and graphical means. The motion of a mass on a spring and a bungy jump provides the data for analyses that support the principle of energy conservation.

The work-energy theorem is used to solve problems involving change of gravitational potential energy to mechanical kinetic energy and the work done against friction. Roller coasters and water slides provide examples for algebraic and graphical analysis.

Information is gathered from a vehicle-safety expert and a self-defence instructor and used in an exploration of the concepts of momentum and impulse. Teacher-guided analyses relate additional demonstrations of the principles of momentum and impulse.