Sound emission at the loudspeaker
Video
Video (00:11 minutes):
The visibly vibrating diaphragm in the loudspeaker obviously transmits its movement onto the air as sound waves.
English, German
2018-08-07
This medium is made available under a CC BY-SA 4.0 international license.
What does this mean?
How to reference this medium
The principle of sound production and propagation as sound wave in the air can be recognized clearly with the example of the diaphragm of a loudspeaker. By the way, only the lowest–pitched tones are visible. With medium and high-pitched tones the movements of the diaphragm are so fast that they are invisible.
Information and ideas:
Suitable for demonstration purposes but also good for self-study on the part of the students.
Idea: show the film without sound to begin with. The students should then guess what sort of noise/sound it might be.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Communication and understanding
Vibrations and waves
Information and ideas:
Suitable for demonstration purposes but also good for self-study on the part of the students.
Idea: show the film without sound to begin with. The students should then guess what sort of noise/sound it might be.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Communication and understanding
Vibrations and waves
There are no other media directly related to this file.
Illustration
Music; Personal, social and health education (PSHE); Physics; Technology
Grade 1 to 4; Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Elementary school; Middle/high school; Vocational training
Electroacoustics; Sound; Electroacoustics; Sound production; Sound propagation; Sound transduction
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