Countries: CA

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.

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

Elastic and inelastic collisions are analysed. A montage of sports images reveals that most collisions are inelastic. Uses criteria of conservation of kinetic energy for elastic collisions to solve for an unknown quantity in several examples.

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

Exploring the physics of a soccer game, a projectile spring and a ballistic pendulum, leads to the understanding of the concepts of energy and momentum. Problem solving and combining many physics ideas into one solution is emphasized.

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.

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

Historic views, from the two-fluid concept of the Greeks to Franklin’s single positive fluid, explain electrostatic charge in terms of electrons. Discusses static charge build up, dangers of uncontrolled discharge, and controlled discharge.

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