Hi-Fi Engineering

A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points. Speakers convert electrical signals into sound waves. A magnet system within a speaker pushes and pulls the air in front of it to produce sound. There are speakers in your TV, cell phone, car radio and computer. Our brains interpret the sound waves from a hi-fi as music. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.