I. Thermodynamics
I3. Gases
Demo No.
Title
I3-13
Inverted Glass Of Water
Purpose
Equipment
To show one result of atmospheric pressure.
Glass, beaker of water and 3x5 card.
Suggestions
Setup Time
none
None.
Description of Demo:
Fill a glass with water and lay a 3x5 card on the top. Holding the card and glass together, turn them upside down and release the card. Tilt the glass slightly. Atmospheric pressure holds the card onto the opening of the glass.
References:
Hans Weltin, A Paradox, AJP 29, 711-712 (1961). Moti Nissani, Clifford L. Maier, and Norma Shifrin, A Guided Discovery Exercise for Introductory Physics Labs, TPT 32, 104-107 (1994).
Created & Modified by
Melissa Bishop/DoIT
April 21, 2000
