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Explains the self-regulating nature of electric motor speeds and demonstrates the application of Lenz’s Law. Shows how the back EMF of an electrical motor can be determined using measurements and...
A series of three videos explaining the concepts of impulse and momentum, and conservation and momentum. Also shows how to analyse one- and two-dimensional collisions using vector addition
Two videos on Coulomb’s law and how Coulomb forces operate in real life.
Examines moving charges within a magnetic field by studying auroras. Demonstrates that moving electric charges experience a force in magnetic fields, and explains how to quantify this force and find its...
Two videos introducing spectral analysis and its role in the development of the model of the atom and the exploration of the universe.
Two programmes following on from THE PHOTON MODEL OF LIGHT.
Investigates electric-current concepts by means of discussion, laboratory work and interviews. The viewer is challenged to devise a source of potential difference from provided materials. Discusses the...
Observes the behaviour of light in experiments involving black body radiation and the photoelectric effect. When the observations are analysed from the point of view of Maxwell’s model of light, it is...
Introduces radioactive decay, using radioactive dating for artifacts and fossils as examples. Explains how to describe decay in terms of nuclear equations and half-life calculations.
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...
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