Sound propagation: glass pairs
Bild
Graphic:
Why does a second glass connected to the first glass with a wire vibrate when we hit the first glass?
Medientyp:
Bild (43,1 kByte)
Letzte Aktualisierung:
22.04.2018
Lizenz:
Dieses Medium steht unter einer CC BY-SA 4.0 international Lizenz.
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Dieses Medium steht unter einer CC BY-SA 4.0 international Lizenz.
Was bedeutet das?
So verweisen Sie auf das Medium
Beschreibung:
This experiment makes it clear that sound is conducted via solid bodies. The glass starts to vibrate when it is rubbed, the wire conveys the vibrations to the second glass.
It must be remembered that the vibrations of the second glass only occur if the glasses have the same pitch level when they are struck or rubbed (use water to adjust levels if necessary)!
Close observation will show that even the water in the second glass starts to vibrate.
Information and ideas:
Setting up the experiment: Two glasses are put at a small distance from each other. A knitting needle or something similar is laid over the two glasses.
Using a moist finger, rub the first glass gently along its rim. A sound is produced, and after a short time the needle begins to vibrate on the second glass as well.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Vibrations and waves
It must be remembered that the vibrations of the second glass only occur if the glasses have the same pitch level when they are struck or rubbed (use water to adjust levels if necessary)!
Close observation will show that even the water in the second glass starts to vibrate.
Information and ideas:
Setting up the experiment: Two glasses are put at a small distance from each other. A knitting needle or something similar is laid over the two glasses.
Using a moist finger, rub the first glass gently along its rim. A sound is produced, and after a short time the needle begins to vibrate on the second glass as well.
Relevant for teaching:
Acoustic phenomena
Sound/acoustics: parameters
Vibrations and waves
Dazugehörige Medien:
Diesem Medium sind keine weiteren Medien zugeordnet.
Lernobjekttyp:
Illustration
Fächer:
Personal, social and health education (PSHE)
Klassenstufen:
Grade 1 to 4; Grade 5 to 6; Grade 7 to 9; Grade 10 to 13
Schultypen:
Elementary school; Middle/high school; Vocational training
Stichworte:
Sound; Sound (basic phenomenon); Sound propagation
Bibliographie:
Siemens Stiftung Media Portal
Urheber/Produzent:
MediaHouse GmbH
Rechteinhaber:
© Siemens Stiftung 2018