The Sound Field Around a Tuning Fork and the Role of a Resonance Box

• Autores: F.Bogcz Bogdan, Antoni T. Pedziwiatr
• Localización: The Physics Teacher, ISSN 0031-921X, Vol. 53, Nº. 2, 2015, pág. 97
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Atypical two-tine tuning fork is barely audible when held vibrating at an arm's length. It is enough, however, to touch its base to a table or, better, to a resonance box and the emitted sound becomes much louder. An inquiring student may pose questions:

    — Why is a bare tuning fork such a weak emitter of sound? — What is the role of the resonance box? — Where does energy connected with larger intensity of emitted acoustic waves come from?