3B Scientific Surface Tension Ring User Manual
Page 8
Elwe Didactic GmbH • Steinfelsstr. 6 • 08248 Klingenthal • Germania • www.elwedidactic.com
3B Scientific GmbH • Rudorffweg 8 • 21031 Amburgo • Germania • www.3bscientific.com
Con riserva di modifiche tecniche
© Copyright 2008 3B Scientific GmbH
•
Agganciare l’anello per tensione superficiale al
dinamometro, quindi appenderli entrambi al
gancio.
•
Riempire il bicchiere con acqua distillata e
posizionarlo sul laborboy estratto.
•
Posizionare il laborboy con il bicchiere davanti al
supporto e abbassare l’anello fino a immeregerlo
completamente nell’acqua.
•
Leggere e annotare la forza.
•
Ridurre lentamente l’altezza del laborboy e
osservare il dinamometro.
•
Leggere la forza quando il tagliente dell’anello si
stacca dalla superficie dell’acqua.
La differenza tra le due forze è uguale alla forza di
strappo.
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