Englisch, Deutsch, Spanisch (CREA)
22.04.2018
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If you rub along the rim of a wineglass with a wet finger this produces a tone. As soon as the glass produces a tone, short-wave marginal waves appear in the liquid. The glass oscillates back and forth at those places at which the waves occur. Between them it is still. The oscillation of the glass is not only transferred to the liquid but also to the air and in this way reaches our ear in the form of a fine tone.
Information and ideas:
This experiment can be done easily in class – the class might even make a glass harmonica on their own?
Further information on this photo is available as information sheet on the media portal of the Siemens Stiftung.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Vibrations and waves
Information and ideas:
This experiment can be done easily in class – the class might even make a glass harmonica on their own?
Further information on this photo is available as information sheet on the media portal of the Siemens Stiftung.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Vibrations and waves
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Example
Personal, social and health education (PSHE); Physics
Grade 1 to 4; Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Elementary school; Middle/high school; Vocational training
Sound; Sound (basic phenomenon); Sound production
Siemens Stiftung Media Portal
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© Siemens Stiftung 2018
