Producers: Alberta Advanced Education

Reveals the visible spectra of a number of gases, and explains the analytical power of spectral analysis. This line of thought leads to a number of applications and Rutherford’s model of the atom.

Auroras provide a context to study moving charges within a magnetic field. Shows that moving electric charges experience a force in magnetic fields and quantifies this force, and gives its direction using hand rules.

Investigates induction and provides explanations of the effect based on magnetic field-current interactions. Discussions with musicians and audio-recording personnel links the concept of electromagnetic induction to sound equipment.

Rotates a loop of wire in a magnetic field, returns to basic principles to explain the observations, and then compares generators to motors. Analyses the nature of alternating current and computes the effective values of sample circuits.

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.